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.

charging issues

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Old 09-19-2007, 02:11 PM
  #1  
psyche116
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Default charging issues

well. took the car into a shop cuz it wasn't charging the battery. turns out it was the voltage regulator. so they put in the new voltage regulator and everything was fine.

then, about ten minutes into the drive home, the amp gauge no longer reads charging. when i get it home, the battery is dead. i dunno what it might be unless the voltage regulator died again... anyone have any ideas?
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Old 09-19-2007, 02:19 PM
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WhiteWindsor
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Default RE: charging issues

Did anyone bother to test the alternator?
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Old 09-19-2007, 02:50 PM
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psyche116
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Default RE: charging issues

yes. the alternator was good.
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Old 09-19-2007, 07:20 PM
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Default RE: charging issues

k. charging system isn't the issue. it's charging fine according to a thingy for checking said charging (forgot what it's called) and the battery is good. so. it's a starter issue. i believe it's heat washing the starter.

IIRC, i can use a newer, smaller, more powerful starter on mine? is it a sn-95 starter?
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Old 09-19-2007, 07:57 PM
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WhiteFoxGT
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Default RE: charging issues

If it actually is the starter...then you could convert to a mini-starter. `92 is when Ford started switching to it. But first check your starter relay by the battery to make sure it operates correctly. Converting to a mini involves a few wiring changes however.
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Old 09-19-2007, 11:14 PM
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psyche116
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Default RE: charging issues

Oh. ok. The mini starter is what i was thinking of.

The problem seems to be heat related- the car starts fine cold, and then once it's up to temperature it won't start. Acts as if the battery is dead- cranks slowly. Will the relay cause that?
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Old 09-19-2007, 11:32 PM
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AdderMk2
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Default RE: charging issues

wont start, or wont crank..... get your terms right.

and you can solve your problem with a heatshield
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Old 09-19-2007, 11:50 PM
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psyche116
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Default RE: charging issues

my bad. it cranks very very slowly.

i'll be looking into the heatshield. probably cheaper than a new starter. which is good.
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