Has anyone had problems with a 1992 Cadillac DeVille?

Question

In the last two years, my car has begun to act up, and the frequency is increasing.

Specifically, my car will sometimes decide that it wants to idle at a very high rate, and it accelerates on its own!

Anybody heard of this?!

Answer 1

does it have the dual injectors in the middle? because if it does, those are notorious for the idle control assy.( located on the throttle linkage connection area) to go bad causing it to adle up and down weird.

Answer 2

yes it probably is idle control motor mounted on t-body,Cadillac is different than other gm makes in that is doesn't use iac stepper motor