Car Problem Reports

Chevrolet G Series Van (G20) Transmission Fluid Leak, Erratic Shifting

 
Chevrolet G Series Van (G20) Problem
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Model Years Affected: 1991, 1992, 1993

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On the 4L80-E Transmission (Diesel and 7.4L gas engine), Transmission fluid may leak through the electrical connector on the side of the transmission, damaging the wire harness and causing the transmission to shift erratically. Our technicians tell us there are updated shift solenoids, an internal  transmission harness, and a connector pigtail available to correct this fault.

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