hey guys/gals. working on a 03 LB7 which was a rebuilt unit. installed into truck and have no forward or reverse.
things i've checked - NO check engine lights
shifter movement - good
line pressure - 260psi in PRND has a boost valve
transfer case - good
valves in valve body all move freely
removed trans - torque converter looks good
monitored input shaft speed - reads engine in PRND
monitored output shaft speed - doesn't change
installed new PRNDL switch as precaution
Fluid Level - GOOD
Trans filter has suncoast filter lock installed
i'm pretty much at a loss now. based on reading i've done. direction i'm lead is C5 clutch pack, maybe solenoid?
Any help is greatly appreciated.
things i've checked - NO check engine lights
shifter movement - good
line pressure - 260psi in PRND has a boost valve
transfer case - good
valves in valve body all move freely
removed trans - torque converter looks good
monitored input shaft speed - reads engine in PRND
monitored output shaft speed - doesn't change
installed new PRNDL switch as precaution
Fluid Level - GOOD
Trans filter has suncoast filter lock installed
i'm pretty much at a loss now. based on reading i've done. direction i'm lead is C5 clutch pack, maybe solenoid?
Any help is greatly appreciated.
