Pontiac Vehicle Models Pontiac Montana 2005-2006 Torque Specifications
Pontiac Vehicle Models Pontiac Montana 2005-2006

Pontiac Vehicle Models Pontiac Montana 2005-2006 Torque Specifications

Complete Pontiac Vehicle Models Pontiac Montana 2005-2006 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

3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

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

Engine Block to Transmission Mounting Bolts

M14 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value based on general industry standards.

Main Bearings and Crankshaft

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M20 x 1.5
Torque Specification
132 ft-lbs (180 N·m)

Valvetrain and Timing System

1

Camshaft Sprocket Bolt

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
2

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Engine Mounts and Accessories

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on general industry standards.
2

Starter Motor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Cooling and Lubrication System

1

Water Pump Bolts

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

Oil Pan Bolts

M10 x 1.5
Torque Specification
106 in-lbs (12 N·m)

Intake and Exhaust System

1

Intake Manifold Bolts

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

Exhaust Manifold/Headers Bolts

M14 x 1.5
Torque Specification
26 ft-lbs (35 N·m)

Electrical and Fuel System

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Fuel Rail Bolts

M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)

3.5l V6 Engine

Torque specifications for 3.5L-V6 Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

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

Engine Block to Transmission Mounting Bolts

M14 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value based on general industry standards.

Main Bearings and Crankshaft

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M20 x 1.5
Torque Specification
132 ft-lbs (180 N·m)

Valvetrain and Timing System

1

Camshaft Sprocket Bolt

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
2

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Engine Mounts and Accessories

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on general industry standards.
2

Starter Motor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Cooling and Lubrication System

1

Water Pump Bolts

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

Oil Pan Bolts

M10 x 1.5
Torque Specification
106 in-lbs (12 N·m)

Intake and Exhaust System

1

Intake Manifold Bolts

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

Exhaust Manifold/Headers Bolts

M14 x 1.5
Torque Specification
26 ft-lbs (35 N·m)

Electrical and Fuel System

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Fuel Rail Bolts

M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)

3.9l Engine

Torque specifications for 3.9L Engine

Cylinder Head

1

Cylinder Head Bolts

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

Cylinder Head to Engine Block Studs

M14 x 2
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Crankshaft

1

Main Bearing Bolts

M16 x 2
Torque Specification
37 ft-lbs (50 N·m)
2

Main Bearing Cap Bolts

M14 x 2
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Engine Block

1

Engine Block to Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
2

Engine Block to Engine Mounting Bolts

M14 x 2
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.

Valvetrain

1

Rocker Arms/Shafts Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)

Timing System

1

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Intake and Exhaust

1

Intake Manifold Bolts

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

Exhaust Manifold/Headers Bolts

M14 x 2
Torque Specification
26 ft-lbs (35 N·m)

Cooling System

1

Water Pump Bolts

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

Thermostat Housing Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)

Oil System

1

Oil Pan Bolts

M10 x 1.25
Torque Specification
106 in-lbs (12 N·m)
2

Oil Drain Plug Bolt

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

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
15 ft-lbs (20 N·m)

3.9l V6 Engine

Torque specifications for 3.9L-V6 Engine

Cylinder Head

1

Cylinder Head Bolts

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

Cylinder Head to Engine Block Studs

M14 x 2
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Crankshaft

1

Main Bearing Bolts

M16 x 2
Torque Specification
37 ft-lbs (50 N·m)
2

Main Bearing Cap Bolts

M14 x 2
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Engine Block

1

Engine Block to Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
2

Engine Block to Engine Mounting Bolts

M14 x 2
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.

Valvetrain

1

Rocker Arms/Shafts Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)

Timing System

1

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Intake and Exhaust

1

Intake Manifold Bolts

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

Exhaust Manifold/Headers Bolts

M14 x 2
Torque Specification
26 ft-lbs (35 N·m)

Cooling System

1

Water Pump Bolts

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

Thermostat Housing Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)

Oil System

1

Oil Pan Bolts

M10 x 1.25
Torque Specification
106 in-lbs (12 N·m)
2

Oil Drain Plug Bolt

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

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
15 ft-lbs (20 N·m)

4t65 Transmission

Torque specifications for 4t65 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated bolt size. Secure the transmission to the engine block or transmission crossmember.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
9.4 ft-lbs (12 N·m)
Important Notes
Estimated bolt size. Secure the oil pan to the transmission.

Transmission Fluid System

1

Transmission Drain and Fill Plugs

M14 x 1.5
Torque Specification
27 ft-lbs (36 N·m)
Important Notes
Estimated bolt size. Allow for the draining and filling of transmission fluid.

Bellhousing and Valve Body

1

4T65 Transmission Bellhousing Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated bolt size. Secure the bellhousing to the engine block.
2

4T65 Transmission Valve Body Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated bolt size. Secure the valve body to the transmission case.

Transmission Filter and Cooler Lines

1

4T65 Transmission Filter Bolts

M8 x 1.25
Torque Specification
9.4 ft-lbs (12 N·m)
Important Notes
Estimated bolt size. Secure the transmission filter to the transmission.
2

4T65 Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Estimated bolt size. Secure the transmission cooler lines to the transmission.

Body

Torque specifications for Body

Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
133 ft-lbs (180 N·m)
Important Notes
Proper torque is crucial to prevent damage to the suspension components and maintain vehicle safety.
2

Control Arm Bolts

M12 x 1.25
Torque Specification
118 ft-lbs (160 N·m)
Important Notes
Proper torque ensures the control arms are securely attached, preventing damage to the suspension and steering components.
3

Steering Gear/Rack Bolts

M10 x 1.0
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Proper torque is essential to prevent damage to the steering components and maintain vehicle safety.

Brake System

1

Brake Caliper Bolts

M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Proper torque is crucial to prevent brake failure and maintain vehicle safety.
2

Brake Caliper Mounting Bracket Bolts

M10 x 1.0
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Proper torque is essential to prevent brake failure and maintain vehicle safety.

Body and Frame

1

Body Mount Bolts

M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Proper torque is crucial to prevent damage to the body and frame components.
2

Door Hinge Bolts

M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the doors and hinges.
3

Hood Hinge Bolts

M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the hood and hinges.
4

Trunk Lid Hinge Bolts

M8 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the trunk lid and hinges.
5

Bumper Mounting Bolts

M10 x 1.0
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the bumper and body components.

Brakes

Torque specifications for Brakes

Brake Caliper and Mounting

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
96 ft-lbs (130 N·m)

Brake Disc/Drum and Hub

1

Brake Disc/Drum Retaining Bolts

M16 x 1.5
Torque Specification
133 ft-lbs (180 N·m)

Wheel and Lug Nuts

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
100 ft-lbs (136 N·m)

Brake Master Cylinder and Booster

1

Brake Master Cylinder Mounting Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on general industry standards.
2

Brake Booster Mounting Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on general industry standards.

ABS Module and Brake Lines

1

ABS Module Mounting Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on general industry standards.
2

Brake Line Fittings

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value based on general industry standards.

Drivetrain

Torque specifications for Drivetrain

Engine and Flywheel

1

Flywheel Bolts

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

Transmission and Mounting

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
2

Transmission Oil Pan Bolts

M8 x 1.0
Torque Specification
106 in-lbs (12 N·m)
Important Notes
Note: The torque value is specified in inch-pounds.

Driveshaft and Axles

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
118 ft-lbs (160 N·m)
2

CV Joint/Axle Nut

M16 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
3

Propeller/Drive Shaft Bolts

M12 x 1.5
Torque Specification
89 ft-lbs (120 N·m)

Differential and Transfer Case

1

Differential Drain/Fill Plug

M10 x 1.0
Torque Specification
32 ft-lbs (43 N·m)
2

Transfer Case Drain/Fill Plug

M8 x 1.0
Torque Specification
27 ft-lbs (36 N·m)

Engine Sensors and Accessories

1

Crankshaft Position Sensor Bolt

M6 x 0.75
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Note: The torque value is estimated based on general industry standards. Consult the manufacturer's specifications for the exact torque value.
2

Camshaft Position Sensor Bolt

M6 x 0.75
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Note: The torque value is estimated based on general industry standards. Consult the manufacturer's specifications for the exact torque value.

Transmission Crossmember and Drive Shaft Center Bearing

1

Transmission Crossmember Bolts

M12 x 1.5
Torque Specification
1. 50 ft-lbs (68 N·m) 2. 60 ft-lbs (81 N·m)
Important Notes
Note: The torque value is estimated based on general industry standards. Consult the manufacturer's specifications for the exact torque value.
2

Drive Shaft Center Bearing Bolt

M10 x 1.25
Torque Specification
1. 30 ft-lbs (41 N·m) 2. 40 ft-lbs (54 N·m)
Important Notes
Note: The torque value is estimated based on general industry standards. Consult the manufacturer's specifications for the exact torque value.

Electrical

Torque specifications for Electrical

Charging System

1

Alternator Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening the bolts.
2

Battery Terminal Nuts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure the battery terminals are clean and free of corrosion before tightening.

Starting System

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the starter motor is properly aligned before tightening the bolts.

Ignition System

1

Ignition Module Mounting Bolts

M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on similar components. Ensure the ignition module is properly seated before tightening.

Fuel System

1

Fuel Pump Electrical Connector Bolts

M5 x 0.8
Torque Specification
0.5 ft-lbs (0.7 N·m)
Important Notes
Estimated value based on similar components. Ensure the connector is properly seated before tightening.

Emissions System

1

Oxygen Sensor Electrical Connector Bolts

M5 x 0.8
Torque Specification
0.5 ft-lbs (0.7 N·m)
Important Notes
Estimated value based on similar components. Ensure the connector is properly seated before tightening.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Header Bolts

M14 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Secure exhaust manifold/header in place.
2

Catalytic Converter Bolts

M16 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure catalytic converter in place.

Emissions Control System

1

EGR Valve Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure EGR valve in place.
2

Oxygen Sensor Bolts

M10 x 1.5
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value. Secure oxygen sensor in place.
3

Oxygen Sensor Wire Harness Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Secure oxygen sensor wire harness in place.
4

EGR Valve Pipe Bolts

M12 x 1.5
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value. Secure EGR valve pipe in place.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold/Headers to Engine Block Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)

Exhaust Piping

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
3

Muffler to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)

Exhaust System Accessories

1

Oxygen Sensor Bolts

M8 x 1.25
Torque Specification
17.5 ft-lbs (23.75 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.
2

Exhaust System Heat Shield Bolts

M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.
3

Exhaust System Hanger Bolts

M10 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.

Downpipe

1

Downpipe to Catalytic Converter Bolts

M14 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.

Fuel

Torque specifications for Fuel

Fuel Rail and Injector System

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.
2

Fuel Injector Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.
3

Fuel Injector Rail Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.

Fuel Pump and Filter System

1

Fuel Pump Mounting Bolts

M10 x 1.5
Torque Specification
10 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.
2

Fuel Filter Bolt/Nut

M12 x 1.75
Torque Specification
10 ft-lbs (10 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.

Fuel Tank and Filler System

1

Fuel Tank Strap Bolts

M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.
2

Fuel Filler Neck Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated bolt size. Torque value is based on provided specifications.

Fuel Pressure Regulator and Vent System

1

Fuel Pressure Regulator Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated bolt size. Torque value is based on general industry standards.
2

Fuel Tank Vent Valve Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated bolt size. Torque value is based on general industry standards.

Fuel Line Fittings

1

Fuel Line Fittings

N/A
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Torque value is based on general industry standards.

Hvac

Torque specifications for Hvac

Air Conditioning Compressor

1

A/C Compressor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the A/C compressor to the engine block.
2

A/C Compressor Clutch Bolts

M10 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Secure the A/C compressor clutch to the compressor.

Air Conditioning Lines and Fittings

1

A/C Line Fittings

1/2"-20
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Connect the A/C lines to the compressor, condenser, and evaporator.
2

A/C Orifice Tube Fittings

1/4"-20
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Connect the A/C orifice tube to the evaporator and condenser.

Air Conditioning Condenser and Evaporator

1

A/C Condenser Mounting Bolts

M14 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Secure the A/C condenser to the radiator support or frame.
2

A/C Evaporator Mounting Bolts

M10 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Secure the A/C evaporator to the dashboard or HVAC module.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
133 ft-lbs (180 N·m)
Important Notes
Secure the strut or shock absorber to the vehicle's frame or suspension component.
2

Control Arm Bolts

M12 x 1.25
Torque Specification
118 ft-lbs (160 N·m)
Important Notes
Connect the control arms to the frame or suspension components.
3

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
1. 80 ft-lbs (110 N·m) 2. 100 ft-lbs (140 N·m)
Important Notes
Estimated torque range. Secure the upper control arm bushings to the frame or suspension components.
4

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
1. 80 ft-lbs (110 N·m) 2. 100 ft-lbs (140 N·m)
Important Notes
Estimated torque range. Secure the lower control arm bushings to the frame or suspension components.
5

Steering Knuckle Bolts

M14 x 1.5
Torque Specification
1. 120 ft-lbs (160 N·m) 2. 140 ft-lbs (190 N·m)
Important Notes
Estimated torque range. Secure the steering knuckle to the suspension component or frame.
6

Coil Spring Mounting Bolts

M12 x 1.25
Torque Specification
1. 80 ft-lbs (110 N·m) 2. 100 ft-lbs (140 N·m)
Important Notes
Estimated torque range. Secure the coil spring to the suspension component or frame.

Steering Components

1

Ball Joint Nut

M16 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Secure the ball joint to the control arm or steering knuckle.
2

Tie Rod End Nut

M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the tie rod end to the steering knuckle or control arm.

Suspension Stabilizers

1

Sway Bar Link Nut

M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the sway bar link to the sway bar or control arm.

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 for the lug nuts on a 2005-2006 Pontiac montana?

The proper torque for lug nuts IS 100 ft-lbs (136 Nm). Always use a torque wrench to ensure proper tightness and prevent damage.

Q2

What type of torque wrench should I use for my Pontiac montana?

Use a calibrated torque wrench with a range that covers the required torque specifications. Beam-type or click-type torque wrenches are suitable options.

Q3

IS it acceptable to use a different torque value than specified?

No, always adhere to the specified torque values provided in the vehicle's service manual or by Pontiac Motors. Using incorrect torque can cause damage to components or safety hazards.

Q4

How often should I check the torque of critical bolts?

Regularly inspect and tighten critical bolts that experience high loads or vibrations, such as those on suspension components, steering linkages, and engine mounts. Refer to the service manual for recommended inspection intervals.

Q5

What are some common torque-related mistakes to avoid?

Common mistakes include using the wrong torque value, skipping torque checks, using an uncalibrated torque wrench, and overtightening or undertightening bolts. Always follow proper procedures and use the specified torque for specific components.

Q6

IS it safe to use an impact wrench for torque tightening?

Impact wrenches are not recommended for final torque tightening. They can apply excessive force and damage bolts or threads. Use a torque wrench for precise and controlled tightening.

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

1/4-Inch Drive Click-Type Torque Wrench

This torque wrench IS ideal for smaller fasteners and components on the 2005-2006 Pontiac Montana.

  • 1/4-inch drive for use with smaller fasteners
  • Click-type mechanism provides audible and tactile feedback when target torque IS reached
  • Range of 10-100 Nm covers a wide range of torque specifications for the Montana
Learn more

1/2-Inch Drive Beam-Type Torque Wrench

For larger fasteners and components, a 1/2-inch drive torque wrench IS recommended.

  • 1/2-inch drive for use with larger fasteners
  • Beam-type mechanism provides visual indication of torque setting
  • Range of 20-200 Nm covers the higher torque specifications found on the Montana
Learn more
Service Procedures

Engine Cylinder Head Bolt Tightening Procedure

Step-by-step instructions for properly tightening the cylinder head bolts on the 2005-2006 Pontiac Montana.

  • Clean the cylinder head and block mating surfaces.
  • Apply a thin coat of engine oil to the threads of the cylinder head bolts.
  • Tighten the cylinder head bolts in the specified sequence and torque to 70 Nm (51 ft-lbs).
  • Re-torque the cylinder head bolts to 90 Nm (66 ft-lbs).
View full procedure

Front Brake Caliper Bolt Tightening Procedure

Instructions for properly tightening the front brake caliper bolts on the 2005-2006 Pontiac Montana.

  • Clean the brake caliper mounting bracket and caliper.
  • Apply a thin coat of anti-seize lubricant to the threads of the brake caliper bolts.
  • Tighten the brake caliper bolts to 120 Nm (89 ft-lbs).
View full procedure
Technical Service Bulletins

Engine Crankshaft Pulley Bolt Recall

2005-04-01

This bulletin addresses a potential issue with the engine crankshaft pulley bolt on the 2005-2006 Pontiac Montana.

2005-2006 Pontiac Montana

Resolution: Dealers are instructed to inspect and replace the engine crankshaft pulley bolt with an updated bolt.

Suspension Control Arm Bolt Tightening Procedure Update

2006-07-15

This bulletin provides updated torque specifications for the suspension control arm bolts on the 2005-2006 Pontiac Montana.

2005-2006 Pontiac Montana

Resolution: Dealers are instructed to retorque the suspension control arm bolts to the updated specifications.

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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

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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