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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
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Idle Problems

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Old 03-24-2003, 03:23 PM   #1
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Default Idle Problems

I have an 88 GT that just doesn't want to idle right. I have replaced the IAC and the TPS and it still has a "lull" or something when it idles. It also only seems to do it after it has warmed up. When I stop at a light or something it will idle fine at first and then it will drop down like it wants to quit and come back up. Any ideas? Thanks.

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Old 03-24-2003, 03:46 PM   #2
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Default Idle Problems

try drilling a 1/8" hole in your butterfly on your throttle body. i read that at stangnet.com in a section about keeping your cam from dying or stalling out.
Doug Blevins<br>
'90 5.
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Old 03-24-2003, 03:46 PM
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