help diagnose tranny problem

[bloft50]

My 96 runner 2wd will not shift out of first if I put it in Drive. I can manually put it in Second but it will not go in to Drive or OD. If I manually put it from Second to Drive I have nothing, its like Neutral. Shop says its throwing no codes. Problem goes away sometimes but seems to come back if underside gets really wet. Any ideas?

 

[jgue467]

Gummed up solenoids?

Have you performed a system wide flush? Not just a drain/fill, i mean flushed out with flushing equipment. That has worked for more than one of my jap trannies. Luck!