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 MANUALSCHEVROLET2008IMPALA V8-5.3LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT MAIN BEARING
2008 Chevrolet Impala V8-5.3L
Crankshaft Main Bearing
2008 Chevrolet Impala V8-5.3LSECTION Crankshaft Main Bearing
Crankshaft Main Bearing Clearance - Production 0.02-0.052 mm (0.0008-0.0021 in)
Crankshaft Main Bearing Clearance - Service 0.02-0.065 mm (0.0008-0.0025 in)
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 Main Bearing Clearance - Service 0.02-0.065 mm (0.0008-0.0025 in)
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
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.