Cadillac Seville / Cadillac Eldorado Forum Discussion, 1992 Eldorado Touring Coupe in Past Cadillac Vehicle Discussion; While cleaning the throttle valve and trying to get the E085 code off my system the engine went to a ...
- 09-01-03 09:52 PM #1Cadillac Owners Member
- Automobile(s): 91 Sedan, 85 Brougham de 'Elegance (59k), 94 Seville
- Join Date
- Sep 2003
- Sarasota, FL
1992 Eldorado Touring Coupe
While cleaning the throttle valve and trying to get the E085 code off my system the engine went to a high idle and something made a loud popping noise... I suspect motor mounts since the engine rocked upward from the front. I can find nothing on mounts for a '92 ETC with a 4.9
Car also stays at a set speed while going down the road without even using cruise control. When I brake it doesn't downshift till just before a complete stop.
- 09-01-03 09:55 PM #2
popping noise? motor mount
I should have posted the problem in the subject line...Sorry
- 09-01-03 10:51 PM #3Cadillac Owners Connoisseur
- Join Date
- Jan 2003
- Nevada, Still the land of the free!
Re: popping noise? motor mount
It sounds like you have a bad occaisional misfire at high idle. I've seen this before during emissions testing. It usually means you need a tuneup. Do a complete tuneup and it'll probably go away.