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.

Low idle problem

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Old 08-22-2005, 02:47 PM
  #1  
Brewski*
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Default Low idle problem

My son installed the new HEI module. The car will start but idle is real low. First thought was he has the timing off a little but any adjustment on the timing causes it to die and not start again. I thing he just needs to set the idle up some. Can someone let me know how he can increase the idle. Thanks
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Old 08-22-2005, 03:07 PM
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primetime5.0
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Default RE: Low idle problem

on the braket that holds the throttle cable theres a screw that adjusts the idle
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Old 08-22-2005, 04:57 PM
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dc_mann8
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Default RE: Low idle problem

yep..theres a idle screw..just turn it until ur happy where it idles.. how low is the idle? shold be aroudn 900 i think.
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Old 08-22-2005, 05:38 PM
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Brewski*
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Default RE: Low idle problem

Runnin around 600 now so it lobs a little but ran fine when driving.
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Old 08-22-2005, 05:49 PM
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Fresh
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Default RE: Low idle problem

i backed my idle set screw all the way out, and i would still like it lower. mine is around 700. how can you get it lower?
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