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

"Lope" at idle with air or heater on

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Old 05-02-2006, 12:13 AM
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Double Ought GT
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Default "Lope" at idle with air or heater on

I was at a local dealer tonight checking out a '00 GT. There have been some mods done to the car already. CAI, Flowmasters, UDP's, a chip of unkown manufacture...

When the car idles, every 5th or so sound of the exhaust (sorry, can't think of a better way to explain...) the engine will take a big gulp of air, and it sounds like a lope from the cam... chug chug chug chug gulp.... repeat.

When the air or heat is in the off position, the car idles normally. Also, the air is not cold when the AC is on...

Any thoughts or opinions for the new guy?
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