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trouble with my 98 navigator

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Old 06-11-2014, 07:35 PM
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trouble with my 98 navigator
my 98 navigator seems like its going to stall when the rpms drop below 1000, I changed the spark plugs and coil packs and still does it. it runs great when driving down the road. thank u
 
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Old 06-11-2014, 08:24 PM
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IAC - idle air control - maybe?
 
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Old 06-11-2014, 08:44 PM
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Originally Posted by alwaysfords41
IAC - idle air control - maybe?
Ditto Dat!
 
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Old 06-11-2014, 09:15 PM
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would the check engine light come on if it was iac?
 
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Old 06-11-2014, 11:18 PM
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Originally Posted by steve olden
would the check engine light come on if it was iac?
Yes if it was an electrical issue, but not if the mechanical portion was dirty and sticking, which is usually the case.
 
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Old 06-12-2014, 04:43 PM
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Originally Posted by alwaysfords41
IAC - idle air control - maybe?
Maybe the infamous PCV elbow vacuum leak?
 
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Old 06-12-2014, 06:54 PM
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Originally Posted by pdqford
Maybe the infamous PCV elbow vacuum leak?
Vacuum leaks tend to raise the idle and not cause stalling thanks to the extra air flow.
 
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Old 06-14-2014, 12:55 PM
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Just changed the iac and still idling rough doesn't seem as bad but still bad enough any other idea?
 
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Old 06-14-2014, 09:55 PM
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Originally Posted by steve olden
Just changed the iac and still idling rough doesn't seem as bad but still bad enough any other idea?
Maybe the infamous PCV elbow vacuum leak?
 
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