Built 5spd, po742 diag

LSxBakakos

Active member
May 29, 2022
136
26
28
Illinois
Just took the truck out after sitting all winter. Went on a quite spirited drive, no check engine illuminated, truck did feel a little "off" though which i figured was from not driving it for the last 6mo.

Didnt get shift range inhibited until I went to back the truck into the garage and realized my truck has no reverse in the middle of a street lol. Thankfully I had my matco scanner on me, sure enough po742 clutch on code

Just to ensure im not losing it, turbine speed in neutral and park both replicate idle speed. However in gear(D or R) im at 0.12rpm...did I lose a turbine speed sensor? I could be wrong but the old tech brain tells me that value needs to be zero in gear

Im hoping its just a fluke and doesnt return, however if it does with the data provided im sure itll be sensor next and if that doesnt fix it im sure itll be sitting for some time.
 

LSxBakakos

Active member
May 29, 2022
136
26
28
Illinois
Thank you

Currently out logging per thread

Odd, pulled truck out of garage and got a service 4wd out of nowhere

Tcc lockup is between 96.88% th on and 4th gear and 97.7% 5th. Ive seen rpm slip based off of -8 to +4

30mph non lockup slip is around 140-150rpm