2005 Cadillac CTS Repair Question
Asked on September 28, 2012
Car still sputters/shakes when idle.
My car has been sputtering/shaking when it idles. The Cadillac dealer didn't find the problem. I noticed recently that it only happens when I have the A/C or heat running. Any suggestions?
Asked by tstrong6600Answer
Replied on September 28, 2012
check fuel pressure shold be 55-60 psi and try cleaning throttle plate with choke cleaner on both sides. it's at the end of the air duct at engine. they get gummy and will cause rough idle and stalling. also check for a vacuum leak like a hose off. It can also bea cam fazer not working right but it shold set a code for that
