got a 04 GMC LB7 truck with only a lift pump and ppe tuner here. Has a PPE stage 4 trans build done. She's slipping bad in lower gears and set a p0721, p0731,p0732,p0733 and a p0727 code. both speed sensors are in spec when ohm'd out, input and turbine speed sensors are only at most 50rpm different. When i drop it in drive and give her some throttle it starts to slip and at 1400rpm i get 1215-1220ish turbine speed. I'm thinking the C1 is hurt. I've loaned my gauge out and haven't got it back yet so line pressure has not been checked.
Am i barking up the right tree or could it be something else??
Thanks!!
Am i barking up the right tree or could it be something else??
Thanks!!
