Hyundai Vehicle Models Sonata 2015-2019 Torque Specifications
Hyundai Vehicle Models Sonata 2015-2019

Hyundai Vehicle Models Sonata 2015-2019 Torque Specifications

Complete Hyundai Vehicle Models Sonata 2015-2019 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide

ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

1.6l Engine

Torque specifications for 1.6L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Follow the specified torque sequence for proper sealing. Failure to do so may result in leaks or engine damage.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Ensure proper alignment of the main bearings before tightening.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
32 ft-lbs (44 N·m)
Important Notes
Ensure proper alignment of the connecting rods before tightening.

Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
94 ft-lbs (127 N·m)
Important Notes
Ensure the flywheel is properly seated before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.

Valvetrain

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
57 ft-lbs (77 N·m)
Important Notes
Ensure proper alignment of the camshaft sprocket before tightening.

Turbocharger

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar turbocharger systems.
2

Turbocharger Oil Feed Line Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar turbocharger systems.

1.6l Turbo Engine

Torque specifications for 1.6L-TURBO Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Follow the specified torque sequence for proper sealing. Failure to do so may result in leaks or engine damage.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Ensure proper alignment of the main bearings before tightening.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
32 ft-lbs (44 N·m)
Important Notes
Ensure proper alignment of the connecting rods before tightening.

Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
94 ft-lbs (127 N·m)
Important Notes
Ensure the flywheel is properly seated before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.

Valvetrain

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
57 ft-lbs (77 N·m)
Important Notes
Ensure proper alignment of the camshaft sprocket before tightening.

Turbocharger

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar turbocharger systems.
2

Turbocharger Oil Feed Line Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar turbocharger systems.

2.0l Engine

Torque specifications for 2.0L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Follow the specified torque sequence to ensure proper alignment.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
32 ft-lbs (44 N·m)
Important Notes
Ensure proper alignment of connecting rods before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper tensioning of the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M12 x 1.25
Torque Specification
57 ft-lbs (77 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of the exhaust manifold before tightening.

Turbocharger System

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.
2

Turbocharger Oil Feed Line Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components. Ensure proper sealing of the oil feed line.

2.0l Turbo Engine

Torque specifications for 2.0L-TURBO Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
62 ft-lbs (84 N·m)
Important Notes
Follow the specified torque sequence to ensure proper alignment.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
32 ft-lbs (44 N·m)
Important Notes
Ensure proper alignment of connecting rods before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper tensioning of the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M12 x 1.25
Torque Specification
57 ft-lbs (77 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of the exhaust manifold before tightening.

Turbocharger System

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.
2

Turbocharger Oil Feed Line Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components. Ensure proper sealing of the oil feed line.

2.4l Engine

Torque specifications for 2.4L Engine

Cylinder Head and Valve Train

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2

Valve Cover Bolts

M8 x 1.25
Torque Specification
53 inch-lbs (6 N·m)
3

Rocker Arms/Shafts Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)

Engine Block and Main Bearings

1

Main Bearing Bolts

M14 x 2.0
Torque Specification
62 ft-lbs (84 N·m)
2

Engine Block to Transmission Mounting Bolts

M16 x 2.0
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Estimated value, verify with manufacturer's specifications.

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M12 x 1.5
Torque Specification
32 ft-lbs (44 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 2.5
Torque Specification
159 ft-lbs (216 N·m)

Intake and Exhaust Systems

1

Intake Manifold Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)

Accessories and Miscellaneous

1

Flywheel Bolts

M14 x 2.0
Torque Specification
94 ft-lbs (127 N·m)
2

Oil Pan Bolts

M10 x 1.5
Torque Specification
71 inch-lbs (8 N·m)
3

Spark Plugs

14mm x 1.25
Torque Specification
15 ft-lbs (20 N·m)

A6f Transmission

Torque specifications for A6f Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
48 ft-lbs (65 N·m)

Transmission Oil System

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
71 in-lbs (8 N·m)
Important Notes
Note: The torque value is in inch-lbs, not ft-lbs.
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)

Transmission Case and Valve Body

1

Transmission Case Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Estimated value based on industry standards.
2

Transmission Valve Body Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on industry standards.

Transmission Solenoids and Filter

1

Transmission Solenoid Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
2

Transmission Filter Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on industry standards.

A8f Transmission

Torque specifications for A8f Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M16 x 1.5
Torque Specification
48 ft-lbs (65 N�m)
Important Notes
Estimated bolt size based on industry standards.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (8 N�m)
Important Notes
Converted from 71 inch-lbs to ft-lbs and Nm. Estimated bolt size based on industry standards.

Transmission Drain and Fill Plugs

1

Transmission Drain and Fill Plugs

M14 x 1.25
Torque Specification
29 ft-lbs (39 N�m)
Important Notes
Estimated bolt size based on industry standards.

Transmission Case and Valve Body

1

A8F-Transmission Case Bolts

M18 x 1.5
Torque Specification
1. 30 ft-lbs (41 N�m) 2. 90° 3. 80 ft-lbs (108 N�m)
Important Notes
Estimated bolt size based on industry standards. Torque sequence and angle steps applied.
2

A8F-Transmission Valve Body Bolts

M8 x 1.0
Torque Specification
13 ft-lbs (18 N�m)
Important Notes
Converted from 18 ft-lbs to Nm. Estimated bolt size based on industry standards.

Transmission Filter and Cooler Lines

1

A8F-Transmission Filter Bolts

M6 x 1.0
Torque Specification
13 ft-lbs (18 N�m)
Important Notes
Converted from 18 ft-lbs to Nm. Estimated bolt size based on industry standards.
2

A8F-Transmission Cooler Line Fittings

M8 x 1.0
Torque Specification
13 ft-lbs (18 N�m)
Important Notes
Converted from 18 ft-lbs to Nm. Estimated bolt size based on industry standards.

Body

Torque specifications for Body

Suspension and Steering

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
2

Control Arm Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
3

Steering Gear/Rack Bolts

M16 x 1.5
Torque Specification
86 ft-lbs (117 N·m)

Brake System

1

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)

Body and Trim

1

Hood Hinge Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value. Consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
2

Trunk Lid Hinge Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value. Consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
3

Door Hinge Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value. Consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
4

Fender Bolts

M6 x 1
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value. Consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
5

Bumper Mounting Bolts

M10 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Consult vehicle's service manual or manufacturer's recommendations for accurate torque values.

Brakes

Torque specifications for Brakes

Brake Caliper System

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure caliper is properly aligned before torquing.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Ensure bracket is properly seated against the steering knuckle or axle.

Brake Rotor Drum System

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
38 ft-lbs (52 N·m)
Important Notes
Ensure rotor/drum is properly seated on the hub before torquing.

Brake Hydraulic System

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar banjo bolt sizes. Ensure sealing washers are properly installed.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on similar master cylinder bolt sizes. Ensure master cylinder is properly aligned.

Brake Booster Pedal System

1

Brake Booster Mounting Bolts

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar booster bolt sizes. Ensure booster is properly seated against the firewall.
2

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar pedal assembly bolt sizes. Ensure pedal operates smoothly after installation.

Abs System

1

ABS Module Mounting Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on similar ABS module bolt sizes. Ensure module is properly aligned.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Mounting

1

Flywheel Bolts

M14 x 1.5
Torque Specification
94 ft-lbs (127 N·m)
Important Notes
Proper torque ensures the flywheel is properly seated and aligned.
2

Transmission Mounting Bolts

M12 x 1.25
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Proper torque ensures the transmission is properly aligned and supported.

Transmission and Differential Fluid System

1

Transmission Oil Pan Bolts

M10 x 1.0
Torque Specification
71 in-lbs (8 N·m)
Important Notes
Proper torque ensures the oil pan is properly sealed and secured.
2

Transmission Drain and Fill Plugs

M12 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Proper torque ensures the plugs are properly sealed and secured.
3

Differential Drain/Fill Plug

M12 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Proper torque ensures the plug is properly sealed and secured.

Drivetrain and Axle Components

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Proper torque ensures the drive axle/half shaft is properly seated and aligned.
2

CV Joint/Axle Nut

M18 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
Important Notes
Proper torque ensures the CV joint is properly seated and aligned.
3

Propeller/Drive Shaft Bolts

M14 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Proper torque ensures the propeller/drive shaft is properly seated and aligned.

Engine Sensors and Accessories

1

Crankshaft Position Sensor Bolt

M8 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Proper torque ensures the sensor is properly seated and aligned.
2

Camshaft Position Sensor Bolt

M8 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Proper torque ensures the sensor is properly seated and aligned.
3

Transmission Cooler Line Fittings

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Proper torque ensures the fittings are properly sealed and secured.

Electrical

Torque specifications for Electrical

Engine Electrical

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2

Starter Motor Mounting Bolts

M14 x 2.0
Torque Specification
32 ft-lbs (43 N·m)
3

Ignition Coil Bolt

M10 x 1.25
Torque Specification
7 ft-lbs (9.5 N·m)

Battery and Electrical Terminals

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
7.5 ft-lbs (10 N·m)

Ignition System

1

Spark Plug Wire Boot Retaining Bolts

M6 x 1.0
Torque Specification
0.8 ft-lbs (1.1 N·m)
Important Notes
Estimated value, manufacturer's recommendations may vary.

Fuel and Air Conditioning Systems

1

Fuel Pump Electrical Connector Bolts

M5 x 0.8
Torque Specification
0.8 ft-lbs (1.1 N·m)
Important Notes
Estimated value, manufacturer's recommendations may vary.
2

A/C Compressor Electrical Connector Bolts

M5 x 0.8
Torque Specification
0.8 ft-lbs (1.1 N·m)
Important Notes
Estimated value, manufacturer's recommendations may vary.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Proper torque ensures a leak-free exhaust system and accurate O2 sensor readings.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque ensures a leak-free exhaust system and accurate O2 sensor readings.
3

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque ensures a secure connection between the catalytic converter and exhaust pipe.

Emissions Control System

1

EGR Valve Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque ensures a secure connection between the EGR valve and engine.
2

EGR Cooler Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Proper torque ensures a secure connection between the EGR cooler and engine.

Sensors and Injectors

1

Oxygen Sensor (O2 Sensor) Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Proper torque ensures a secure connection between the O2 sensor and engine.
2

NOx Sensor Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Proper torque ensures a secure connection between the NOx sensor and engine.
3

Fuel Injector Bolts

M10 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Proper torque ensures a secure connection between the fuel injector and engine.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Engine Block Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of the exhaust manifold/headers before tightening.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper sealing to prevent exhaust gas leakage.

Exhaust Pipe Connections

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of the exhaust pipe before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper sealing to prevent exhaust gas leakage.
3

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment and sealing to prevent leaks.

Exhaust System Support

1

Exhaust System Hanger Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment of the exhaust system before tightening.
2

Exhaust Flange Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper sealing to prevent exhaust gas leakage.
3

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment and secure fit to prevent heat damage.

Fuel

Torque specifications for Fuel

Fuel Rail System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Ensures proper sealing of the fuel rail to the intake manifold or cylinder head.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensures proper sealing and alignment of the fuel injectors.

Fuel Pump And Tank System

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Ensures the fuel pump is securely mounted to the fuel tank.
2

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensures the fuel tank is securely held in place.
3

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Ensures a proper seal and prevents fuel leaks or inaccurate fuel level readings.

Fuel Delivery System

1

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensures the fuel filter is securely sealed to prevent leaks.
2

High-Pressure Fuel Line Fittings

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensures a secure connection and prevents fuel leaks.
3

Fuel Line Clamp Bolts

M6 x 1.0
Torque Specification
5.92 ft-lbs (8 N·m)
Important Notes
Ensures fuel lines are securely held in place.

Fuel Filler System

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
5.92 ft-lbs (8 N·m)
Important Notes
Ensures a tight seal to prevent fuel vapors from escaping.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

Ac Lines

1

A/C Line Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use a torque wrench to avoid overtightening, which can damage fittings.

Evaporator

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Heater Core

1

Heater Core Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Hvac Control Module

1

HVAC Control Module Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Condenser

1

Condenser Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

Suspension

Torque specifications for Suspension

Strut And Shock Absorber Mounting

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)

Control Arm Mounting

1

Control Arm Bolts

M12 x 1.25
Torque Specification
80 ft-lbs (108 N·m)
2

Lower Control Arm-to-Knuckle Bolts

M14 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Estimated value based on industry standards.
3

Upper Control Arm-to-Frame Bolts

M12 x 1.25
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated value based on industry standards.

Ball Joint And Tie Rod End

1

Ball Joint Nut

M16 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
2

Tie Rod End Nut

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)

Sway Bar Link And Stabilizer Bar

1

Sway Bar Link Nut

M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
2

Stabilizer Bar-to-Frame Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on industry standards.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the recommended torque specification for the engine oil drain plug on my 2015-2019 Hyundai Sonata?

The recommended torque specification for the engine oil drain plug on a 2015-2019 Hyundai Sonata IS 30 ft-lbs (41 Nm).

Q2

What tools do I need to measure and apply torque accurately?

To measure and apply torque accurately, you will need a torque wrench. Torque wrenches come in various types, including beam-type, click-type, and digital torque wrenches. Refer to your torque wrench's instructions for proper usage.

Q3

Can I use a regular wrench to tighten bolts instead of a torque wrench?

It IS not recommended to tighten bolts using a regular wrench as it can lead to overtightening or undertightening. A torque wrench IS specifically designed to apply a precise amount of torque.

Q4

How do I ensure even torque distribution when tightening multiple bolts?

To ensure even torque distribution, tighten the bolts in a star pattern. This involves tightening the bolts in a sequence that alternates between opposite bolts.

Q5

What are the potential consequences of overtightening or undertightening bolts?

Overtightening bolts can lead to stripped threads, bolt breakage, or component damage. Undertightening bolts can result in loose connections, vibrations, and potential safety hazards.

Q6

Where can I find additional torque specifications for my 2015-2019 Hyundai Sonata?

Refer to the vehicle's repair manual or the Hyundai service portal for a comprehensive list of torque specifications.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

1/2-inch Drive Digital Torque Wrench

This torque wrench IS designed to provide precise torque measurements and control when working on the 2015-2019 Hyundai Sonata. It features a digital display for accurate readings, a reversible ratchet mechanism for ease of use, and a range of 10-100 Nm, covering most torque specifications for the Sonata.

  • Digital display for precise torque readings
  • Reversible ratchet mechanism for ease of use
  • 1/2-inch drive for compatibility with various sockets
  • Range of 10-100 Nm covers most torque specifications for the Sonata
Learn more

3/8-inch Drive Torque Wrench

This torque wrench IS ideal for working on smaller bolts and fasteners on the 2015-2019 Hyundai Sonata. It provides precise torque measurements and control, ensuring proper tightening of critical components. The 3/8-inch drive allows for use with a variety of sockets, making it a versatile tool for various tasks.

  • 3/8-inch drive for compatibility with a variety of sockets
  • Precise torque measurements and control
  • Suitable for smaller bolts and fasteners on the Sonata
  • Compact size for easy handling in tight spaces
Learn more
Service Procedures

Engine Cylinder Head Bolt Tightening Procedure

This service procedure provides detailed instructions for properly tightening the cylinder head bolts on the 2015-2019 Hyundai Sonata. It includes specific torque specifications, tightening sequence, and safety precautions to ensure a secure and reliable engine assembly.

  • Clean the cylinder head and block mating surfaces thoroughly.
  • Apply a thin layer of engine oil to the threads of the cylinder head bolts.
  • Install the cylinder head bolts and hand-tighten them until snug.
  • Tighten the cylinder head bolts to the specified torque in the sequence outlined in the service manual.
  • Re-torque the cylinder head bolts after the engine has cooled down completely.
  • Inspect the cylinder head bolts for any signs of stretching or damage.
View full procedure

Suspension Control Arm Bolt Tightening Procedure

This service procedure outlines the proper steps for tightening the control arm bolts on the 2015-2019 Hyundai Sonata. It ensures the suspension system IS securely assembled and provides optimal performance and handling.

  • Lift the vehicle and support it securely on jack stands.
  • Locate the control arm bolts and remove the nuts and bolts.
  • Clean the bolts and threads and apply a small amount of anti-seize lubricant.
  • Install the bolts and hand-tighten them until snug.
  • Tighten the bolts to the specified torque using a torque wrench.
  • Lower the vehicle and re-check the torque on the bolts.
View full procedure
Technical Service Bulletins

Technical Service Bulletin: Engine Oil Leak from Cylinder Head Cover

2018-05-15

This technical bulletin addresses an issue with potential oil leaks from the cylinder head cover on the 2015-2019 Hyundai Sonata. It provides instructions for inspecting and replacing the cylinder head cover gasket to resolve the issue.

2015-2019 Hyundai Sonata equipped with 2.0L or 2.4L engines

Resolution: Inspect the cylinder head cover gasket for damage or leaks. Replace the gasket if necessary, following the procedures outlined in the service manual. Tighten the cylinder head cover bolts to the specified torque.

Technical Service Bulletin: Brake Pedal Pulsation

2016-10-01

This technical bulletin addresses a concern with brake pedal pulsation experienced on some 2015-2019 Hyundai Sonata vehicles. It provides instructions for inspecting and replacing the front brake rotors and pads to eliminate the pulsation.

2015-2019 Hyundai Sonata equipped with front disc brakes

Resolution: Inspect the front brake rotors for excessive wear or warping. Replace the rotors if necessary. Inspect the brake pads for uneven wear or contamination. Replace the brake pads if necessary. Torque the wheel lug nuts to the specified value.

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The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
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We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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