Is a tune needed when doing a stall converter??
Mine didn't do it with the Yank 3000, which was a soft hitting TC.
The Edge 3400 hit more like your typical 3600; that's when it reared its head.
And I should have paid more attention to what EW said earlier.
The OBD1 fix for mine was NOT disabling the VSS error (too many years and bad memory!). Moving the 1-2 WOT shift threshold down to 1 mph and letting it shift on the rpm trigger was the fix. Edited post above.
Last edited by bowtienut; Jan 5, 2013 at 08:24 AM.
Sounds like a shitty tranny builder is your problem. I don't think anyone actually any good uses kevlar in this tranny. Even without a tune for a stall wall the 3-clutches would not be what is hurt unless you put it into stall wall constantly and drive around in only third.
There are a lot of shops who will take your money to "rebuilt" a 4L60E and relatively few who actually do a good job.





