Hello . We have a problem with a 5R55S Transmission [ford]. Vehicle came in with water in fluid. We rebuilt trans all new frictions ,seals ,solenoids new valve in pump. Fitted new cooler. After two weeks vehicle came back . Complaint was slip when cold on heavy throttle mostly noticeable in 1st,2nd and 3rd.Trans drove well when hot. We checked main line presure at the port on left side . Presure was correct at idle and stall with good rise on part throttle. We removed and dismantled trans we found small bolt that goes into centre suport had been left loose and rear clutch which is feed through centre support was badly burnt .we also dismantled and checked valve body and gaskets all was ok .Reassembled and refitted trans .Fault was exactly the same . Even though we found centre support was loose this did not correct fault. Vehicle drives good hot . We also checked filter pick up height from bottom of pan , and over filled with fluid but this made no difference.
We would appreciate any sujestions that would help us find the fault.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.