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 MANUALSCHEVROLET2007IMPALA V6-3.9LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER BLOCK ASSEMBLYPISTON PINSPECIFICATIONS
2007 Chevrolet Impala V6-3.9L
Piston Pin: Specifications
2007 Chevrolet Impala V6-3.9LSECTION Specifications
Piston Pin Clearance to Connecting Rod Bore - Press Fit -0.004 to -0.021 mm -0.0001 to -0.0008 in
Piston Pin Clearance to Piston Pin Bore 0.002-0.010 mm 0.00008--0.0004 in
Piston Pin Diameter 23.952-23.955 mm 0.942-0.943 in
Piston Pin Length 64.21-64.44 mm 2.57-2.53 in
Piston Pin Clearance to Piston Pin Bore 0.002-0.010 mm 0.00008--0.0004 in
Piston Pin Diameter 23.952-23.955 mm 0.942-0.943 in
Piston Pin Length 64.21-64.44 mm 2.57-2.53 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.