Rough Idle
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Joined: May 2011
Posts: 28
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Rough Idle
Starting a new thread. Purchased a 2004 coupe in May. Car has rough idle at stoplights.
Here is what I have done so far:
Removed and cleaned MAF
Removed and cleaned throttle body
New K&N filters plus cleaned housing and air ducts
New plugs
New fuel filter
Ran through 2 bottles of Techron injector cleaner
Oil and Filter
Also had my mechanic check for vacuum leaks
No CEL and no codes
Any other thoughts?
Here is what I have done so far:
Removed and cleaned MAF
Removed and cleaned throttle body
New K&N filters plus cleaned housing and air ducts
New plugs
New fuel filter
Ran through 2 bottles of Techron injector cleaner
Oil and Filter
Also had my mechanic check for vacuum leaks
No CEL and no codes
Any other thoughts?
Joined: Dec 2008
Posts: 163
Likes: 0
From: Northern, Ohio
Re: Rough Idle
Could an ignition wire be bad (not sure if Crossfires even have wires 
). Did anyone run a compression check before changing plugs? Everything you did seems like it should have smoothed out the idle.
). Did anyone run a compression check before changing plugs? Everything you did seems like it should have smoothed out the idle.
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