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.

Car Starting Problem

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Old 03-22-2010, 10:02 PM
  #1  
wickedstang321
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Question Car Starting Problem

I have a 1990 Mustang 302 with a vortech supercharger putting out about 10-12psi. I went to track this past weekend and I made 3 runs and decided to let the motor cool. After few minutes the car wouldnt start,it was sounding like it wanted to turn over but wouldnt so I waited another few minutes and all of sudden it fired right up. Any ideas on why it wouldn't start after couple runs down the track?(Think I stronger amp alternator,battery, maybe or etc..) Thanks
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Old 03-23-2010, 07:50 AM
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g3mustang
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Maybe the starter is going bad.... When a starte is going bad one of it tales is won't turn when it's hot
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Old 03-23-2010, 10:43 AM
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Bubba 95SN
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Amp draw meter will answer the question. Should the starter pass that test a dvom will finish other questions. Bubba
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Old 03-23-2010, 10:46 AM
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mjr46
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starter heat soak possible, high resistance in a cable ect ect....
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Old 03-23-2010, 12:46 PM
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PRO50SC
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Be a little more specific. Cranked fine but wouldn't fire or it was slow cranking. That will make a difference in the diagnosis.
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Old 03-23-2010, 01:24 PM
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wickedstang321
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It was like you can hear the motor trying to turn over but nothing as if the battery was going out but after few minutes the car fired right up.
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Old 03-23-2010, 02:05 PM
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PRO50SC
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OK, could be a weak battery or heat soak starter as already posted. Is this a new problem. Where is your timing set at?
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