Operation CHARM: Car repair manuals for everyone.

Home >> GMC Truck >> 1986 >> G 2500 3/4 Ton Van V8-379 6.2L DSL >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Component Tests and General Diagnostics >> 4L60 (700-R4) Automatic Transmission >> Oil Pump Assembly

Oil Pump Assembly

1. Low bolt torque.

2. Cut or damaged oil pump to case seal.

3. Oil pump porosity.

4. Restricted oil pump drain back passage.

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