4r100 issue after putting in 1st gear
Had a buddy that was moving his boat from one lake to another and when he wento pull out from unloading the boat he put his truck in 1st gear and nothing would happen.He tried putting it in everyother gear and nothing would happen,put it in reverse and reverse works fine!!! Did some testing with a pressure gauge and the gauge just sits and spikes all over the place. Pulled the pan nothing out of the abnormal in the pan changed out the solenoid pack and when he started the truck it reved up so he shut it down then started it back up had no throttle at all so he messed with the TPS wires and it got working ( unless the TPS is just somthing that happened to be going bad). Trying to explain to him that we need to pull the tranny and see what the insides look like but others are saying its electrical just seeing what everyone else thinks????