Transmission fluid may leak through electrical connector and damage wire harness on GMC V3500
Problem overview
For the 4L80- E Transmission only (6.2L Diesel and 7.4L gas engine) the 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.
1 person reported this problem
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GMC V3500 vehicles with this problem
1 model year affected
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