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.

Will not stay running after it warms up!!!!

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Old 09-20-2008, 02:50 PM
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eaglemustang
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Default Will not stay running after it warms up!!!!

I having a problem with my 1994 Mustang GT 5.0. H.O. it still quits running after it warms up and is getting more frequent. I have replaced the fuel pump, ECU, and the ignition, After replacing the ignition it ran fine for about a month and it started back more severe. They are telling me that the fuel injectors are not firing, however they are getting power. It is not throwing any codes. Could it possibly be the crank sensor or o2 sensor and not throw a code.
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Old 09-20-2008, 03:06 PM
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mattdel
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99% chance the PIP module inside the distributor is dead.
autozone part # F123
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Old 09-20-2008, 03:11 PM
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eaglemustang
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Can they still fail and pass a bench test
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Old 09-20-2008, 05:10 PM
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mattdel
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yes, because the bench test was probably performed with a cold module.
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Old 09-21-2008, 12:12 AM
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eaglemustang
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they are heat testing it as well, could the distributor be bad and what would the symptoms be?
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Old 09-21-2008, 09:50 AM
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mjr46
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the only elec portion in the dizzy to go bad is the stator....when it stall test equipment must be hooked to pip signal in the dizzy, I believe using the ac scale on a multimeter and probing the correct wires and watching meter will tell you if the pip signal is loost during stall out
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Old 09-24-2008, 01:53 AM
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eaglemustang
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Thanks
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