Chevrolet G Series Van (G30)
Report: Transmission Fluid Leak, Erratic Shifting
Chevrolet G Series Van (G30) Problem
Model Years Affected: 1991, 1992, 1993
Verified
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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