4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

help car won't idle

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Old 04-03-2011, 02:14 PM
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Sash
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Default help car won't idle

Hey guys,any idea what can cause this?I did replace my old beat up K&N air filter with different kind hi flow filter and I change the set up with shorter pipe,now my car wont idle WTF????
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Old 04-03-2011, 04:56 PM
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02GTman
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Maybe a vacuum leak, look for a line of. My car was doing this and I found the leak by accident.
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Old 04-04-2011, 05:34 AM
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uberstang1
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Dumb question but you gotta ask sometimes, id the MAF plugged in and installed correctly.
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Old 04-05-2011, 08:19 PM
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Sash
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the IAC is good MAF is good to i swap those two fro my grand marquis and made no difference,I dont know where else to look,how do you look for a vacuum leak?
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Old 04-07-2011, 07:38 PM
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problem solved,the tune was out,idle was running to rich...
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