1G Rebuilt awd trans but have OD shudder still

[enriquez2000]

Long story short. Same symptom caused band to break and kill clutches so i rebuilt.

The trans guy tested tcu and he said whats happening is with OD on the car is trying to shift to OD and 2nd at same time causing a shudder/bog.

If OD is off 1 2 3 is smooth and if you turn OD on once in 3rd it shifts to OD fine.

Any one have this happen to them? I may just need to find a new tcu if i want OD

 

[twicks69]

What is the reverse servo gap adjusted to for the kickdown band? Was it pressure tested to confirm servo movement range and that it isn't dragging? I'm assuming you replaced the reverse kickdown band and the reverse sunshell and had the reverse servo properly adjusted when you had your guy in it last. With the end clutch, what is the measured gap between the retainer spring and the reaction plate? Was the oil seal installed properly? Did you replace the piston seals and clean out the check balls in the end clutch basket?

 

[enriquez2000]

What is the reverse servo gap adjusted to for the kickdown band? Was it pressure tested to confirm servo movement range and that it isn't dragging? I'm assuming you replaced the reverse kickdown band and the reverse sunshell and had the reverse servo properly adjusted when you had your guy in it last. With the end clutch, what is the measured gap between the retainer spring and the reaction plate? Was the oil seal installed properly? Did you replace the piston seals and clean out the check balls in the end clutch basket?

id have to ask those specifics. He did say under higher boost the test light showed it grounding out when going it OD but fine when normally driving

And this is the same issue that started right before it blew up

 

[twicks69]

So is it a solenoid issue, a TCU issue or or a mechanical issue? has the valve body been gone through?

 

[enriquez2000]

So is it a solenoid issue, a TCU issue or or a mechanical issue? has the valve body been gone through?

Valve body was gone over and replaced he thinks its a tcu issue but ive only heard of them going out completely

 

[enriquez2000]

Fixed problem... converter had gone bad. Got a transtar one and all good now.. put a shift kit in but not sure i want to use the chipped tcu yet