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Home >> GMC >> 1991 >> Syclone V6-262 4.3L Turbo >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Component Tests and General Diagnostics >> 4L60 (700-R4) Automatic Transmission >> Oil Leak Check >> Vent

Vent

1. Oil overfill.

2. Engine coolant in transmission oil.

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