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 MANUALSCHEVROLET2004TAHOE 2WD V8-4.8L VIN VREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
2004 Chevrolet Tahoe 2WD V8-4.8L VIN V
Piston Ring, Engine
2004 Chevrolet Tahoe 2WD V8-4.8L VIN VSECTION Piston Ring, Engine
Piston Rings
Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore
Production 0.23 - 0.44 mm (0.009 - 0.017 inch)
Measured in Cylinder Bore - Service 0.23 - 0.5 mm (0.009 - 0.0196 inch)
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
Production 0.44 - 0.7 mm (0.017 - 0.027 inch)
Service 0.44 - 0.76 mm (0.0173 - 0.03 inch)
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore
Production 0.18 - 0.75 mm (0.007 - 0.029 inch)
Service 0.18 - 0.81 mm (0.007 - 0.032 inch)
Piston Ring to Groove Clearance - First Compression Ring
Production 0.04 - 0.085 mm (0.00157 - 0.00335 inch)
Service 0.04 - 0.085 mm (0.00157 - 0.00335 inch)
Piston Ring to Groove Clearance - Second Compression Ring
Production 0.04 - 0.078 mm (0.00157 - 0.0031 inch)
Piston Ring to Groove Clearance - Second Compression Ring
Service 0.04 - 0.078 mm (0.00157 - 0.0031 inch)
Piston Ring to Groove Clearance - Oil Control Ring
Production 0.012 - 0.2 mm (0.0005 - 0.0078 inch)
Service 0.012 - 0.2 mm (0.0005 - 0.0078 inch)
Piston Ring End Gap - First Compression Ring - Measured in Cylinder Bore
Production 0.23 - 0.44 mm (0.009 - 0.017 inch)
Measured in Cylinder Bore - Service 0.23 - 0.5 mm (0.009 - 0.0196 inch)
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
Production 0.44 - 0.7 mm (0.017 - 0.027 inch)
Service 0.44 - 0.76 mm (0.0173 - 0.03 inch)
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore
Production 0.18 - 0.75 mm (0.007 - 0.029 inch)
Service 0.18 - 0.81 mm (0.007 - 0.032 inch)
Piston Ring to Groove Clearance - First Compression Ring
Production 0.04 - 0.085 mm (0.00157 - 0.00335 inch)
Service 0.04 - 0.085 mm (0.00157 - 0.00335 inch)
Piston Ring to Groove Clearance - Second Compression Ring
Production 0.04 - 0.078 mm (0.00157 - 0.0031 inch)
Piston Ring to Groove Clearance - Second Compression Ring
Service 0.04 - 0.078 mm (0.00157 - 0.0031 inch)
Piston Ring to Groove Clearance - Oil Control Ring
Production 0.012 - 0.2 mm (0.0005 - 0.0078 inch)
Service 0.012 - 0.2 mm (0.0005 - 0.0078 inch)
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.