96 Deville transmission issue

[lawlert]

Heres the issue - when Im going betweeen 40 & 48 mph, I will slightly step on the gas and it feels like the transmission is slipping. Push the gas down a little more, it downshifts and everything is ok. Only happens in that speed bracket and when ithe gearshift is in D.

Just changed the trans fluid & filters (and cleaned the magnets), still happens. But the shifts feel firmer and it downshifts quicker.

Any suggestions or am I just going crazy? Anything other than another $1600 tranny rebuild (had to get one on the 84 deville).

 

[jimf]

trans issue

All of the 90's transmissions had electric solenoids on them for shifting. The early ones especially had problems with bad grounds to the solenoids. I don't think with the problem you describe that it is serious. I would get a transmission place to check it out. If you don't like the answer, check with another one. I've found a couple of answers to the question usually leads to the solution.

My 2 cents

 

[lawlert]

found it!

I had a Cadillac dealer run some diagnostics, and it turns out the transmission is fine - one of my coil packs is going bad, and the ICM is going with it (also causing stalling at idle), causing misfiring.

Allot easier to work on that than a transmission.