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.

Amp light during acceleration

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Old 07-30-2005, 04:22 AM
  #1  
justamemory3
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Default Amp light during acceleration

Hi. I have a 1988 Mustang GT 5.0. My amp light started coming on today while I am accelerating through first and second gear. It fades off when the car shifts into third. It does not come on if I accelerate slowly. Any ideas as to what may cause this to happen? Thanks.
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Old 07-30-2005, 02:43 PM
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Quik
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Default RE: Amp light during acceleration

belt slippin?
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Old 07-30-2005, 03:07 PM
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99saleen351r
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Default RE: Amp light during acceleration

Could be belt slippage but chances are your alternater is going.Get a tester and see what its putting out for amps should be up over 13.5 while running if its any good
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Old 07-30-2005, 05:49 PM
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wildstang87
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Default RE: Amp light during acceleration


ORIGINAL: 99saleen351r

Could be belt slippage but chances are your alternater is going.Get a tester and see what its putting out for amps should be up over 13.5 while running if its any good
he means volts but yeah, check the alt. output.
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