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.
Transmission Fluid Leak, Erratic Shifting on GMC Vandura 2500
Average mileage: 108,000 (108,000–108,000)
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I have a water leak from what i think is the water pump but i'm not sure. Can anyone help me lo...
thermostat has been changed, I've added 2 gallons of fluid, there is no noticeable leak, occasi...
bought a new trans for my van and its not wanting to shift from 2nd to drive and so on already...
if the prndl lever is in 3rd it will not shift to 3rd