Heres the deal. A few weeks ago my O/D said bye, bye. it just quit while sitting in a paring lot. I figured no big deal. My terminals were fine and my wiring was fine. Still no O/D. I figured id takeit back to Winspeed diesel since I had them build the tranny and its under warranty. i had no clue wht I was getting into. First they checked relays, terminals and made sure I was getting juice there. Had it all. they checked the computer and even swapped it. No, O/D. Put in a set of solenoids...no O/D. Then they out in another set. No O/D. They ran a manual switch to see if I could get O/D...nothing. They have also checked every single relays, fuse, sensor etc. that you can think of and still nothing. The guys there have been on the phone with Suncoast like everyday. The last thing they can think of is the electrical in the trans or the valvebody itself. This is killing me. Any thoughts? I need my truck!!!!!!!!!!

 

Did you try the O/D switch itself? Do you have any codes? You need to check the codes! Get back to us! Also was it working to begin with?

 

I would say if they didnt get it with the manual switch like he stated its gonna be an internal problem in the trans. But in not the wiz on electronics so I cant help much, but im shure they will work with you and get you fixed asap.

 

The switch is fine...I have no clue what codes have came up. As of right now they have the valvebody out and are trying to see if its electrical.

 

I lost first and OD in mine. Takes off kinda slow in 2nd while pulling a camper. I pulled the trans relay out and installed the jumper like you would do with the manual lockup switch. After I did that I had both 1st and OD back and now I have the manual lockup switch.

This happened over a year ago and it is fine without the relay.

 

My relay is out too in place for a jumper and a manual lockup. I will be talkin to them later and will keep us posted.