Hey guys any help is greatly appreciated. I rebuilt tranny abd everything works except 3rd 4th. Good pressure on reverse and drive and neutral. No pressure under direct clutch though hence no third or fourth.any ideas? I'm not sure an odd any codes butt i I scanned it abd just got p1000.

Park idle 60

Full 120

Reverse
150

Ft

255

Drive

125

190

Those are the numbers

Thanks

Jordan

 

either the direct clutch piston seal is cut or the teflon seals that seal the direct drum to the output shaft are cut. did you replace them during rebuild?

 

Yes I did replace them. The only thing is I wasn't sure I put the seal in the right direction. I put it in with the lip facing downwards like towards the output shaft and not towards the input shaft (if that makes sense). No cuts at all. It literally has 0 psi, but the computer is commanding it to third. Does this give you any ideas?

Thanks!

 

0 psi indicates a cut or improperly installed seal. If you did not use the correct lip seal installers, its pretty easy to tear one going back together.

you installed the piston seal in the correct direction