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10-10-2005, 07:39 AM
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#2 |
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Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
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Re: idle air control valve problems on a 91 5.0
You've changed the airflow into and out of the engine. What is happening is that the idle dashpot isn't sufficient enough to keep the engine from stalling on de-clutch. A good tuner would be able to adjust the idle preposition, dashpot and isc neutral air to restore the driving quality. Word of warning, if you attempt to add idle air by adjusting the idle stop screw on the throttle body, you'll most likely end up with a flare on the shifts and a surging idle. A custom tune is really the way to solve the driveability issue.
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
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