Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE MECHANICAL - 5.3L)SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
2008 Pontiac Grand Prix Base
Fastener Tightening Specifications
2008 Pontiac Grand Prix BaseSECTION Fastener Tightening Specifications
WARNING: This page is about a different variant/trim than selected.
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Camshaft Position (CMP) Sensor Bolt | 12 N.m | 106 lb in |
| Camshaft Retainer Bolts - Hex Head Bolts | 25 N.m | 18 lb ft |
| Camshaft Retainer Bolts - TORX® Head Bolts | 15 N.m | 11 lb ft |
| Camshaft Sprocket Bolt - 1-Bolt Sprocket - First Pass | 75 N.m | 55 lb ft |
| Camshaft Sprocket Bolt - 1-Bolt Sprocket - Final Pass | 50 degrees | |
| Connecting Rod Bolts - First Pass | 20 N.m | 15 lb ft |
| Connecting Rod Bolts - Final Pass | 85 degrees | |
| Coolant Air Bleed Pipe and Cover Bolts | 12 N.m | 106 lb in |
| Coolant Temperature Sensor | 20 N.m | 15 lb ft |
| Crankshaft Balancer Bolt - Installation Pass to Ensure the Balancer is Completely Installed | 330 N.m | 240 lb ft |
| Crankshaft Balancer Bolt - First Pass - Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes | 50 N.m | 37 lb ft |
| Crankshaft Balancer Bolt - Final Pass | 140 degrees | |
| Crankshaft Bearing Cap M8 Bolts | 25 N.m | 18 lb ft |
| Crankshaft Bearing Cap M10 Bolts - First Pass in Sequence | 20 N.m | 15 lb ft |
| Crankshaft Bearing Cap M10 Bolts - Final Pass in Sequence | 80 degrees | |
| Crankshaft Bearing Cap M10 Studs - First Pass in Sequence | 20 N.m | 15 lb ft |
| Crankshaft Bearing Cap M10 Studs - Final Pass in Sequence | 51 degrees | |
| Crankshaft Oil Deflector Nuts | 25 N.m | 18 lb ft |
| Crankshaft Position (CKP) Sensor Bolt | 25 N.m | 18 lb ft |
| Crankshaft Rear Oil Seal Housing Bolts | 30 N.m | 22 lb ft |
| Cylinder Head M8 Bolts - in Sequence | 30 N.m | 22 lb ft |
| Cylinder Head M11 Bolts - First Pass in Sequence | 30 N.m | 22 lb ft |
| Cylinder Head M11 Bolts - Second Pass in Sequence | 90 degrees | |
| Cylinder Head M11 Bolts - Final Pass in Sequence | 70 degrees | |
| Cylinder Head Coolant Plug | 20 N.m | 15 lb ft |
| EN 47699 Bolt | 60 N.m | 44 lb ft |
| Engine Block Coolant Drain Hole Plug | 60 N.m | 44 lb ft |
| Engine Block Coolant Heater | 50 N.m | 37 lb ft |
| Engine Block Oil Gallery Plugs | 60 N.m | 44 lb ft |
| Exhaust Crossover Pipe Nuts | 25 N.m | 18 lb ft |
| Exhaust Manifold Bolts - First Pass | 15 N.m | 11 lb ft |
| Exhaust Manifold Bolts - Final Pass | 20 N.m | 15 lb ft |
| Exhaust Manifold Heat Shield Bolts | 9 N.m | 80 lb in |
| Exhaust Manifold Studs | 20 N.m | 15 lb ft |
| Flex Plate Bolts - First Pass | 20 N.m | 15 lb ft |
| Flex Plate Bolts - Second Pass | 50 N.m | 37 lb ft |
| Flex Plate Bolts - Final Pass | 100 N.m | 74 lb ft |
| Front Cover Bolts | 25 N.m | 18 lb ft |
| Fuel Rail Bolts | 10 N.m | 89 lb in |
| Ignition Coil Bracket-to-Valve Rocker Arm Cover Studs | 12 N.m | 106 lb in |
| Ignition Coil-to-Bracket Bolts | 10 N.m | 89 lb in |
| Intake Manifold Bolts - First Pass in Sequence | 5 N.m | 44 lb in |
| Intake Manifold Bolts - Final Pass in Sequence | 10 N.m | 89 lb in |
| J 41798 M8 Bolt | 25 N.m | 18 lb ft |
| J 41798 M10 Bolts | 50 N.m | 37 lb ft |
| Knock Sensor Bolts | 20 N.m | 15 lb ft |
| Manifold Absolute Pressure (MAP) Sensor Bolt | 5 N.m | 44 lb in |
| Oil Filter | 30 N.m | 22 lb ft |
| Oil Filter Fitting | 55 N.m | 40 lb ft |
| Oil Level Indicator Tube Bolt | 25 N.m | 18 lb ft |
| Oil Pan Closeout Cover Bolt - Left Side | 9 N.m | 80 lb in |
| Oil Pan Closeout Cover Bolt - Right Side | 9 N.m | 80 lb in |
| Oil Pan Cover Bolts | 12 N.m | 106 lb in |
| Oil Pan Drain Plug | 25 N.m | 18 lb ft |
| Oil Pan M6 Bolts - Oil Pan-to-Rear Housing | 12 N.m | 106 lb in |
| Oil Pan M8 Bolts - Oil Pan-to-Engine Block and Oil Pan-to-Front Cover | 25 N.m | 18 lb ft |
| Oil Pressure Sensor | 35 N.m | 26 lb ft |
| Oil Pump Cover Bolts | 12 N.m | 106 lb in |
| Oil Pump Relief Valve Plug | 12 N.m | 106 lb in |
| Oil Pump Screen Nuts | 25 N.m | 18 lb ft |
| Oil Pump Screen-to-Oil Pump Bolt | 12 N.m | 106 lb in |
| Oil Pump-to-Engine Block Bolts | 25 N.m | 18 lb ft |
| Sight Shield Studs | 12 N.m | 106 lb in |
| Spark Plugs | 15 N.m | 11 lb ft |
| Throttle Body Bolts | 10 N.m | 89 lb in |
| Timing Chain Dampener Bolts | 25 N.m | 18 lb ft |
| Timing Chain Tensioner Bolts | 25 N.m | 18 lb ft |
| Valve Lifter Guide Bolts | 12 N.m | 106 lb in |
| Valve Lifter Oil Manifold Bolts | 25 N.m | 18 lb ft |
| Valve Rocker Arm Bolts | 30 N.m | 22 lb ft |
| Valve Rocker Arm Cover Bolts | 12 N.m | 106 lb in |
| Water Inlet Housing Bolts | 15 N.m | 11 lb ft |
| Water Manifold - M8 Bolts | 30 N.m | 22 lb ft |
| Water Manifold - M10 Bolts | 60 N.m | 44 lb ft |
| Water Pump Bolts | 10 N.m | 89 lb in |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.