What all can cause a bad idle?

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07-19-2005, 03:00 AM

mustang4eva

2nd Gear Member

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Join Date: Mar 2005

Location: California

Posts: 212

What all can cause a bad idle?

I am just trying to eliminate all possible causes of a bad idle...For instance can dirty injectors affect idle?

07-19-2005, 08:26 AM

stanglx2002

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Join Date: Feb 2005

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RE: What all can cause a bad idle?

Dirty IAC
dirty or clogged pcv vlave ans screen
dirty egr
dirty maf

07-19-2005, 09:00 AM

blkgt50

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Join Date: Mar 2004

Location: Va Bch, Va

Posts: 296

RE: What all can cause a bad idle?

vacuum hoses or bad intake gasket, too

07-19-2005, 02:05 PM

luckythirteen13

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Join Date: May 2004

Location: las vegas, nv

Posts: 9,092

RE: What all can cause a bad idle?

bad ignition system, a/f ratio off

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