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Idle Problems

D

DyComet

Veteran CEG'er
Joined
Aug 30, 2005
Messages
526
Location
Cincinnati, Ohio
I'm having some idle problems with my 3L. It is idling very rough. I thought at first that it might be a belt issue but that is not the case. When I take my foot off the gas and let it idle the engine shakes pretty violently. Sometimes it doesn't even shake at all and other times it is very bad. When I give it some gas everything smooths out and the car runs fine when there is gas. It also takes a while to hunt for idle. Here's the list of the stuff I've replaced: plugs, wires, and DPFE sensor with no luck at all.
 
I have a weird idle with similar issues on my 3L turbo... but I never ran the 3L N/A so it might be just some kinks I haven't worked out with the turbo. :shrug:

Let me know if you figure it out! :)
 
Yeah, I'm clueless. Looked it over for possible vacuum leaks...none. I've replaced everything, IAC, TPS, plugs, wires, and DPFE sensor.
 
Oh, 1 thing though. When I was searching for vacuum leaks I noticed something weird with my transmission mount. There is a large rubber insert that goes into the mount and I noticed that at least 1.5" of that insert was sticking out on top. That might be the worst description I've ever given but I really don't know how else to say it. First off, is that normal? And secondly if it wasn't, why would that be causing vibrations at idle only and why in the hell would it make my serp. belt shake like crazy?!?!?!
 
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