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- Cadillac STS (https://www.cadillacforum.com/forum/cadillac-sts-17/)

- - runs rough after tuneup (https://www.cadillacforum.com/forum/cadillac-sts-17/runs-rough-after-tuneup-279/)

Seville650

08-23-2005 11:22 AM

runs rough after tuneup

I have a 94 STS with 101,000 miles on it. After a tune-up(wires, plugs, coils, air filter,pcv valve, and cleaned the EGR valve,I did not replace the EGR valve) it still runs rough at idle(hunts up and down almost quiting) and shakes on acceleration. At cruise rpm it is also rough and fluctuates rpm. Any suggestions?

tesfrank

08-24-2006 03:24 PM

RE: runs rough after tuneup

I have the same problem.. hope we'll have an answer!

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