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.

MORE 86 idle issues....

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Old 05-30-2009, 07:05 PM
  #11  
TRL12087
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well i pulled the throttle body to clean it today and boy was it dirty. im also hoping that its normal for some coolant to rush out when i broke the gasket seal. if not i've got bigger problems..... but it does seem to be running a bit better now that the throttle body is clean
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Old 05-30-2009, 07:11 PM
  #12  
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i forgot to add the fact that when i checked my tps voltage, it was at .90 with the key turned to on but the car off. but when i started the car it did not change. it stays a constant .90. shouldn't it jump up to something like 4.5 or something at idle?
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Old 05-30-2009, 08:00 PM
  #13  
AdderMk2
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re-check the TPS voltage the same way you were doing it. This time, turn the key to the run position, but dont have the car running.

rotate the TB arm, and the voltage should increase
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