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.
2008 GMC Acadia AWD V6-3.6LFACTORY OEM SERVICE PROCEDURE
Piston Pin, Engine
Pin
Piston Pin Clearance to Connecting Rod Bore 0.007-0.024 mm (0.0003-0.0010 in)
Piston Pin Clearance to Piston Pin Bore 0.004-0.012 mm (0.0002-0.0005 in)
Piston Pin Diameter 23.997-24.000 mm (0.9448-0.9449 in)
Piston Pin Length 60.600-61.100 mm (2.3858-2.4055 in)
Piston Pin Clearance to Connecting Rod Bore 0.007-0.024 mm (0.0003-0.0010 in)
Piston Pin Clearance to Piston Pin Bore 0.004-0.012 mm (0.0002-0.0005 in)
Piston Pin Diameter 23.997-24.000 mm (0.9448-0.9449 in)
Piston Pin Length 60.600-61.100 mm (2.3858-2.4055 in)
Factory Service Tools
Use the Manual With the Right Hardware
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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.