truck came in blowing fluid out frontseal. found converter turned blew. rebuild complete unit, w transgo small kit. used pump. truck worked ok. had crappy 3-4 shift. let sit over night. first set of shifts were good, then 3-4 was crappy again. then no 4th 0r 5th.
p0753 and p0755 ?? ( gear ratio codes for 4th and 5th)
Problem
replaced valvebody and set of solenoids, (transfered the transgo stuff) reused my separater plate. truck now has delay/ int. slip in rev, and no 4th or 5th. pressure tested unit. everything good (90 psi idle in drive and rev. 175-200 at wot forward, 300ps1 rev wot) remove valve body again air checked direct clutch and it sounds good. no debris at all found in pan since rebuild ( no even a little dust)