GMC Vehicle Models Terrain 2018-present
GMC Vehicle Models Terrain 2018-present Torque Specifications
Complete GMC Vehicle Models Terrain 2018-present 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
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
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
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
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
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
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Torque Calculator
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1.5l Engine
Torque specifications for 1.5L Engine
1.5l Engine
Torque specifications for 1.5L Engine
Cylinder Head and Valvetrain
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
3 Rocker Arms/Shafts Bolts
M10 x 1.5
3
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
1
Main Bearing Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
2 Connecting Rod Nuts
M12 x 1.75
2
Connecting Rod Nuts
M12 x 1.75
Torque Specification
30 ft-lbs (40 N·m)
3 Crankshaft Pulley/Harmonic Balancer Bolts
M16 x 2.0
3
Crankshaft Pulley/Harmonic Balancer Bolts
M16 x 2.0
Torque Specification
96 ft-lbs (130 N·m)
Timing System
1 Timing Belt/Chain Tensioner Bolts
M10 x 1.5
1
Timing Belt/Chain Tensioner Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2 Camshaft Sprocket Bolts
M12 x 1.75
2
Camshaft Sprocket Bolts
M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
Engine Accessories
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
2 Thermostat Housing Bolts
M8 x 1.25
2
Thermostat Housing Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
3 PCV Valve Bolts
M6 x 1.0
3
PCV Valve Bolts
M6 x 1.0
Torque Specification
89 in-lbs (10 N·m)
Engine Mounting and Transmission
1 Engine Mounting Bolts
M14 x 2.0
1
Engine Mounting Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
2 Engine Block to Transmission Mounting Bolts
M16 x 2.0
2
Engine Block to Transmission Mounting Bolts
M16 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
1.6l Engine
Torque specifications for 1.6L Engine
1.6l Engine
Torque specifications for 1.6L Engine
Cylinder Head and Valvetrain
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Critical to engine performance and longevity.
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
89 inch-lbs (10 N·m)
Important Notes
Prevents oil leaks and damage to the valve cover.
3 Rocker Arms/Shafts Bolts
M10 x 1.5
3
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
89 inch-lbs (10 N·m)
Important Notes
Prevents damage to the rocker arms/shafts and cylinder head.
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
1
Main Bearing Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Critical to engine operation and bearing longevity.
2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
2
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Prevents damage to the pulley/balancer and crankshaft.
Camshaft and Timing System
1 Camshaft Sprocket Bolt
M12 x 1.5
1
Camshaft Sprocket Bolt
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Prevents damage to the sprocket and camshaft.
2 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
2
Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Prevents damage to the tensioner and timing belt/chain.
Intake and Exhaust Systems
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
89 inch-lbs (10 N·m)
Important Notes
Prevents damage to the intake manifold and engine block.
2 Exhaust Manifold/Headers Bolts
M12 x 1.5
2
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Prevents damage to the manifold/header and cylinder head.
Engine Accessories
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
89 inch-lbs (10 N·m)
Important Notes
Prevents damage to the water pump and engine block.
2 Oil Filter Cap
M12 x 1.5
2
Oil Filter Cap
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Prevents damage to the oil filter and engine block.
Engine Mounting and Transmission
1 Engine Block to Transmission Bellhousing Bolts
M14 x 2.0
1
Engine Block to Transmission Bellhousing Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Critical to engine operation and transmission engagement.
2 Engine Mounting Bolts
M12 x 1.5
2
Engine Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Prevents damage to the engine mounts and engine.
2.0l Engine
Torque specifications for 2.0L Engine
2.0l Engine
Torque specifications for 2.0L Engine
Cylinder Head and Valve Train
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
3 Rocker Arms/Shafts Bolts
M10 x 1.5
3
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
1
Main Bearing Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
2 Connecting Rod Nuts
M12 x 1.75
2
Connecting Rod Nuts
M12 x 1.75
Torque Specification
30 ft-lbs (40 N·m)
3 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
3
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Torque Specification
96 ft-lbs (130 N·m)
Timing and Accessory Components
1 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2 Camshaft Sprocket Bolt
M12 x 1.75
2
Camshaft Sprocket Bolt
M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
3 Water Pump Bolts
M10 x 1.5
3
Water Pump Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
Intake and Exhaust Components
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
2 Exhaust Manifold/Header Bolts
M12 x 1.75
2
Exhaust Manifold/Header Bolts
M12 x 1.75
Torque Specification
26 ft-lbs (35 N·m)
3 Throttle Body Bolts
M8 x 1.25
3
Throttle Body Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
Engine Mounting and Transmission Components
1 Engine Mounting Bolts
M14 x 2.0
1
Engine Mounting Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2 Engine Block to Transmission Bellhousing Bolts
M14 x 2.0
2
Engine Block to Transmission Bellhousing Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Accessory Components
1 Oil Filter Cap
M20 x 2.5
1
Oil Filter Cap
M20 x 2.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Hand-tight only.
2 PCV Valve Bolts
M10 x 1.5
2
PCV Valve Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
3 Engine Oil Cooler Bolts
M10 x 1.5
3
Engine Oil Cooler Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
6t45 Transmission
Torque specifications for 6t45 Transmission
6t45 Transmission
Torque specifications for 6t45 Transmission
Transmission Mounting
1 Transmission to Engine/Body Mounting Bolts
M12 x 1.5
1
Transmission to Engine/Body Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated bolt size and torque value based on common transmission mounting applications. Verify with the appropriate service manual.
Transmission Pan
1 Transmission Oil Pan Bolts
M10 x 1.25
1
Transmission Oil Pan Bolts
M10 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated bolt size and torque value. Verify with the appropriate service manual. Apply even pressure during tightening.
Transmission Access Plugs
1 Transmission Drain Plug
M12 x 1.5
1
Transmission Drain Plug
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Verify with the appropriate service manual.
2 Transmission Fill Plug
M10 x 1.25
2
Transmission Fill Plug
M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Verify with the appropriate service manual.
Input and Output Shafts
1 Input Shaft Bolts
M10 x 1.25
1
Input Shaft Bolts
M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Verify with the appropriate service manual.
2 Output Shaft Bolts
M10 x 1.25
2
Output Shaft Bolts
M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Verify with the appropriate service manual.
9t45 Transmission
Torque specifications for 9t45 Transmission
9t45 Transmission
Torque specifications for 9t45 Transmission
Transmission Mounting and Case
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the transmission to the engine block or transmission crossmember.
2 9T45 Transmission Case Bolts (Upper and Lower)
M10 x 1.25
2
9T45 Transmission Case Bolts (Upper and Lower)
M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the transmission case halves together. Estimated value, consult manufacturer's documentation for confirmation.
Transmission Oil Pan and Filter
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
Important Notes
Secure the oil pan to the transmission case, preventing oil leaks.
2 9T45 Transmission Filter Bolts
M6 x 1.0
2
9T45 Transmission Filter Bolts
M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure the transmission filter to the transmission case, ensuring proper filtration. Estimated value, consult manufacturer's documentation for confirmation.
Transmission Valve Body and Solenoid Pack
1 9T45 Transmission Valve Body Bolts
M10 x 1.25
1
9T45 Transmission Valve Body Bolts
M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure the valve body to the transmission case, ensuring proper hydraulic pressure. Estimated value, consult manufacturer's documentation for confirmation.
2 9T45 Transmission Solenoid Pack Bolts
M8 x 1.25
2
9T45 Transmission Solenoid Pack Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure the solenoid pack to the transmission case, ensuring proper electrical connections. Estimated value, consult manufacturer's documentation for confirmation.
Transmission Pressure Regulator
1 9T45 Transmission Pressure Regulator Bolts
M8 x 1.25
1
9T45 Transmission Pressure Regulator Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure the pressure regulator to the transmission case, ensuring proper regulation of hydraulic pressure. Estimated value, consult manufacturer's documentation for confirmation.
9t50 Transmission
Torque specifications for 9t50 Transmission
9t50 Transmission
Torque specifications for 9t50 Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2 Transmission Bellhousing Bolts
M12 x 1.5
2
Transmission Bellhousing Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
3 Transmission Crossmember Bolts
M14 x 1.5
3
Transmission Crossmember Bolts
M14 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Transmission Oil System
1 Transmission Oil Pan Bolts
M10 x 1.5
1
Transmission Oil Pan Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
2 Transmission Filter Bolts
M8 x 1.25
2
Transmission Filter Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Transmission Valve Body and Solenoid Pack
1 9T50 Transmission Valve Body Bolts
M10 x 1.5
1
9T50 Transmission Valve Body Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2 9T50 Transmission Solenoid Pack Bolts
M8 x 1.25
2
9T50 Transmission Solenoid Pack Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Transmission Fluid Maintenance
1 Transmission Drain and Fill Plugs
M12 x 1.5
1
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension and Steering
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
2 Control Arm Bolts
M16 x 1.5
2
Control Arm Bolts
M16 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
3 Steering Gear/Rack Bolts
M14 x 1.5
3
Steering Gear/Rack Bolts
M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Brake System
1 Brake Caliper Bolts
M12 x 1.25
1
Brake Caliper Bolts
M12 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
2 Brake Caliper Mounting Bracket Bolts
M14 x 1.5
2
Brake Caliper Mounting Bracket Bolts
M14 x 1.5
Torque Specification
129 ft-lbs (175 N·m)
Body and Frame
1 Hood Hinge Bolts
M10 x 1.25
1
Hood Hinge Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for the correct torque value.
2 Door Hinge Bolts
M10 x 1.25
2
Door Hinge Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for the correct torque value.
3 Trunk Lid Hinge Bolts
M10 x 1.25
3
Trunk Lid Hinge Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for the correct torque value.
4 Body Mount Bolts
M14 x 1.5
4
Body Mount Bolts
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for the correct torque value.
5 Bumper Mounting Bolts
M10 x 1.25
5
Bumper Mounting Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for the correct torque value.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper System
1 Brake Caliper Bolts
M8 x 1.25
1
Brake Caliper Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2 Brake Caliper Mounting Bracket Bolts
M10 x 1.5
2
Brake Caliper Mounting Bracket Bolts
M10 x 1.5
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Brake Disc Drum System
1 Brake Disc/Drum Retaining Bolts
M6 x 1
1
Brake Disc/Drum Retaining Bolts
M6 x 1
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar components and bolt sizes. Verify the specific bolt size for your application.
Wheel Assembly
1 Wheel Lug Nuts
M14 x 1.5
1
Wheel Lug Nuts
M14 x 1.5
Torque Specification
100 ft-lbs (135 N·m)
Important Notes
Estimated value based on similar components and bolt sizes. Verify the specific bolt size for your application.
Brake Pedal Master Cylinder
1 Brake Pedal/Master Cylinder Mounting Bolts
M8 x 1.25
1
Brake Pedal/Master Cylinder Mounting Bolts
M8 x 1.25
Torque Specification
70 ft-lbs (96 N·m)
Important Notes
Estimated value based on similar components and bolt sizes. Verify the specific bolt size for your application.
Brake Hoses And Lines
1 Brake Line Fittings
M10 x 1.5
1
Brake Line Fittings
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar components and fitting sizes. Consult the manufacturer's specifications for the specific fitting type.
2 Brake Hose Clamps
1/2 inch
2
Brake Hose Clamps
1/2 inch
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar components and clamp sizes. Consult the manufacturer's specifications for the specific clamp type.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Interface
1 Engine Block to Transmission Bellhousing Bolts
M12 x 1.5
1
Engine Block to Transmission Bellhousing Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2 Transmission Crossmember Bolts
M12 x 1.5
2
Transmission Crossmember Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on industry standards.
Drive Axle and Half Shaft
1 Drive Axle/Half Shaft Bolts
M14 x 1.5
1
Drive Axle/Half Shaft Bolts
M14 x 1.5
Torque Specification
118 ft-lbs (160 N·m)
2 CV Joint/Axle Nut
M14 x 1.5
2
CV Joint/Axle Nut
M14 x 1.5
Torque Specification
118 ft-lbs (160 N·m)
Propeller and Drive Shaft
1 Propeller/Drive Shaft Bolts
M12 x 1.5
1
Propeller/Drive Shaft Bolts
M12 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Transmission Oil Pan and Drain/Fill Plugs
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
2 Transmission Drain and Fill Plugs
M12 x 1.5
2
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Differential and Transfer Case
1 Differential Cover Bolts
M12 x 1.5
1
Differential Cover Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on industry standards.
2 Differential Drain/Fill Plug
M12 x 1.5
2
Differential Drain/Fill Plug
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
3 Transfer Case Drain/Fill Plug
M12 x 1.5
3
Transfer Case Drain/Fill Plug
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Flywheel and Drive Shaft Center Bearing
1 Flywheel Bolts
M12 x 1.5
1
Flywheel Bolts
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
2 Drive Shaft Center Bearing Bolts
M12 x 1.5
2
Drive Shaft Center Bearing Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on industry standards.
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Engine Electrical Components
1 Ignition Coil Mounting Bolts
M8 x 1.25
1
Ignition Coil Mounting Bolts
M8 x 1.25
Torque Specification
8 ft-lbs (11 N-m)
Important Notes
Estimated value based on similar M8 bolts. Verify with specific vehicle and component diagrams.
2 Alternator Mounting Bolts
M10 x 1.5
2
Alternator Mounting Bolts
M10 x 1.5
Torque Specification
37 ft-lbs (50 N-m)
Important Notes
Standard alternator mounting bolt torque.
3 Starter Motor Mounting Bolts
M10 x 1.25
3
Starter Motor Mounting Bolts
M10 x 1.25
Torque Specification
37 ft-lbs (50 N-m)
Important Notes
Standard starter motor mounting bolt torque.
Battery And Wiring
1 Battery Terminal Nuts
M8 x 1.25
1
Battery Terminal Nuts
M8 x 1.25
Torque Specification
6 ft-lbs (8 N-m)
Important Notes
Estimated value based on similar M8 nuts. Verify with specific vehicle and component diagrams.
Body Electrical Components
1 ECU Mounting Bolts
M6 x 1.0
1
ECU Mounting Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N-m)
Important Notes
Estimated value based on similar M6 bolts. Verify with specific vehicle and ECU model diagrams.
2 Fuse Box Mounting Bolts
M5 x 0.8
2
Fuse Box Mounting Bolts
M5 x 0.8
Torque Specification
4 ft-lbs (5.5 N-m)
Important Notes
Estimated value based on similar M5 bolts. Verify with specific vehicle and fuse box model diagrams.
Wiring Harness Mounting
1 Wiring Harness to Body/Component Bolts
M3 x 0.5
1
Wiring Harness to Body/Component Bolts
M3 x 0.5
Torque Specification
2 ft-lbs (2.7 N-m)
Important Notes
Estimated value. Torque depends heavily on wire gauge and fastener type. Consult wiring diagrams for specific requirements.
2 Wiring Harness to Engine Compartment Bolts
M3 x 0.5
2
Wiring Harness to Engine Compartment Bolts
M3 x 0.5
Torque Specification
2 ft-lbs (2.7 N-m)
Important Notes
Estimated value. Torque depends heavily on wire gauge and fastener type. Consult wiring diagrams for specific requirements.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensor Mounts
1 Oxygen Sensor (O2 Sensor) - Bank 1 Sensor 1
M8 x 1.25
1
Oxygen Sensor (O2 Sensor) - Bank 1 Sensor 1
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar components and bolt sizes. Verify with the specific repair manual for the vehicle.
2 Oxygen Sensor (O2 Sensor) - Bank 2 Sensor 1
M8 x 1.25
2
Oxygen Sensor (O2 Sensor) - Bank 2 Sensor 1
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar components and bolt sizes. Verify with the specific repair manual for the vehicle.
3 Evaporative Emission Control Valve Mounting Bolts
M6 x 1.0
3
Evaporative Emission Control Valve Mounting Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar components and bolt sizes. Verify with the specific repair manual for the vehicle. Ensure proper tightening sequence to avoid component damage.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Delivery System
1 Fuel Rail Bolts
M6 x 1.0
1
Fuel Rail Bolts
M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Ensure proper alignment of the fuel rail before tightening.
2 Fuel Injector Bolts
M6 x 1.0
2
Fuel Injector Bolts
M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Ensure the fuel injectors are properly seated before tightening.
3 Fuel Pressure Regulator Mounting Bolts
M6 x 1.0
3
Fuel Pressure Regulator Mounting Bolts
M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on industry standards.
4 Fuel Rail Bracket Bolts
M6 x 1.0
4
Fuel Rail Bracket Bolts
M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on industry standards.
Fuel Storage System
1 Fuel Pump Mounting Bolts
M6 x 1.0
1
Fuel Pump Mounting Bolts
M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Ensure the fuel pump is properly seated before tightening.
2 Fuel Tank Strap Bolts
M8 x 1.25
2
Fuel Tank Strap Bolts
M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the fuel tank is properly positioned before tightening.
3 Fuel Filler Neck Bolts
M6 x 1.0
3
Fuel Filler Neck Bolts
M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the fuel filler neck is properly aligned before tightening.
Fuel Filtration System
1 Fuel Filter Bolt/Nut
M6 x 1.0
1
Fuel Filter Bolt/Nut
M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the fuel filter is properly seated before tightening.
Fuel Injector Sealing System
1 Fuel Injector O-Ring Retainer Bolts
M6 x 1.0
1
Fuel Injector O-Ring Retainer Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
HVAC System Mounts
1 A/C Compressor Mounting Bolts
M10 x 1.25
1
A/C Compressor Mounting Bolts
M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Standard torque for A/C compressor mount bolts. Refer to the vehicle's repair manual for specific bolt size and location.
2 HVAC Condenser Mounting Bolts
M8 x 1.0
2
HVAC Condenser Mounting Bolts
M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes. Verify bolt size and location in the repair manual.
3 HVAC Evaporator Mounting Bolts
M8 x 1.25
3
HVAC Evaporator Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes. Verify bolt size and location in the repair manual.
4 HVAC Expansion Valve Mounting Bolts
M6 x 0.75
4
HVAC Expansion Valve Mounting Bolts
M6 x 0.75
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes. Verify bolt size and location in the repair manual.
5 HVAC Blower Motor Mounting Bolts
M10 x 1.5
5
HVAC Blower Motor Mounting Bolts
M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated torque value based on similar components and bolt sizes; the exact value may vary depending on the blower motor model. Verify bolt size and location in the repair manual.
HVAC System Fittings
1 A/C Line Fittings Torque
1/4" NPT
1
A/C Line Fittings Torque
1/4" NPT
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Torque for refrigerant line fittings. Tighten to the specified torque to avoid leaks.
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Suspension Mounting Bolts
1 Strut/Shock Absorber Mounting Bolts
M12 x 1.25
1
Strut/Shock Absorber Mounting Bolts
M12 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Estimated value based on common strut/shock bolt size. Confirm with vehicle-specific service manual.
2 Control Arm Bolts
M14 x 2.0
2
Control Arm Bolts
M14 x 2.0
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Estimated value based on common control arm bolt size. Confirm with vehicle-specific service manual. Ensure proper control arm alignment.
3 Ball Joint Nut
M16 x 1.5
3
Ball Joint Nut
M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on common ball joint nut size. Confirm with vehicle-specific service manual.
4 Tie Rod End Nut
M18 x 2.0
4
Tie Rod End Nut
M18 x 2.0
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Estimated value based on common tie-rod end nut size. Confirm with vehicle-specific service manual.
Suspension Bushings
1 Lower Control Arm Bushings/Mounts
M10 x 1.25
1
Lower Control Arm Bushings/Mounts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Specific torque values vary depending on bushing type and material. Consult service manual.
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
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
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
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 are the torque specifications for the lug nuts on a 2018-Present GMC Terrain?
Q1
What are the torque specifications for the lug nuts on a 2018-Present GMC Terrain?
The torque specifications for the lug nuts on a 2018-Present GMC Terrain are 130 ft-lbs (176 Nm).
Q2 What size torque wrench do I need to tighten the lug nuts on a 2018-Present GMC Terrain?
Q2
What size torque wrench do I need to tighten the lug nuts on a 2018-Present GMC Terrain?
You will need a torque wrench capable of applying up to 130 ft-lbs (176 Nm) of torque to tighten the lug nuts on a 2018-Present GMC Terrain.
Q3 Can I use an impact wrench to tighten the lug nuts on my 2018-Present GMC Terrain?
Q3
Can I use an impact wrench to tighten the lug nuts on my 2018-Present GMC Terrain?
No, you should not use an impact wrench to tighten the lug nuts on your 2018-Present GMC Terrain. Overtightening the lug nuts can damage the wheel studs or the brake rotors.
Q4 What are the torque specifications for the spark plugs on a 2018-Present GMC Terrain?
Q4
What are the torque specifications for the spark plugs on a 2018-Present GMC Terrain?
The torque specifications for the spark plugs on a 2018-Present GMC Terrain are 25 ft-lbs (34 Nm).
Q5 What are the torque specifications for the oil drain plug on a 2018-Present GMC Terrain?
Q5
What are the torque specifications for the oil drain plug on a 2018-Present GMC Terrain?
The torque specifications for the oil drain plug on a 2018-Present GMC Terrain are 18 ft-lbs (24 Nm).
Q6 What are the torque specifications for the oil filter on my 2018-Present GMC Terrain?
Q6
What are the torque specifications for the oil filter on my 2018-Present GMC Terrain?
The torque specifications for the oil filter on a 2018-Present GMC Terrain are 18 ft-lbs (24 Nm).
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
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
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
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
Digital Torque Wrench (10-100 Nm)
Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the terrain.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Bolt Torque Specifications for 2018-Present GMC Terrain
Refer to the vehicle service manual or a reliable online service such as alldatadiy.com for detailed procedures and specific torque values for different components on the GMC terrain.
- Locate the relevant section in the service manual or online resource for the component you need to work on.
- Identify the specified torque value for the bolts or fasteners you are tightening.
- Use the digital torque wrench to tighten the bolts to the specified torque, ensuring you follow any additional instructions or safety precautions.
- Double-check the tightness of the bolts after completing the procedure to ensure they are properly secured.
Technical Service Bulletins
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
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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