Valek

Ok heres the problem, since i installed the torque conv. im getting this vibration in 4th gear around 1200-2000 rpm. Does not do it all the time but still is so annoying. Imagine your driving a stick shift, you are in 5th gear you slow down and then keep going whithout downshifting thats the kind of vibration i get. Once it downshifts to 3rd vibration is gone. I dont want to think is the converter. Could it be a bad od or that the tranny is not synchro. the 3rd and od shifts. Also is the 4R70W a locking tranny? If i want the tranny to lock the conv in 3rd and 4th do i need to get a tune?

Acer2428

DUDE!?! You put a 3k stall in there with no cams? No tune?

You REALLY need to talk to the TCI people.

undecided.steve

+1

Valek

I did, i got the converter they recomended.

97targa

DUDE!!! Can you not see his sig where he has a Diablo Tuner? I agree with the no cams ordeal though

Valek

I dont think cams are gonna solve my problem.

97targa

Check your driveshaft! They tend to vibrate if any weights are missing or if the u-joints are going bad!

Valek

It cross my mind, thanks

Valek

Anymore ideas??

2002GTAUTOVERT

it could be the little pin-type things inside the torque converter (forgot their name) there could be a defect inside causing the vibration, but that is unlikely. +1 to the ujoints, they are often overlooked as a cause of a problem. did you check the basics.. IAC valve, etc.