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.

No Start When HOT!? 1992 GT

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Old 04-27-2009, 10:22 AM
  #1  
greasemonkey
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Default No Start When HOT!? 1992 GT

It has a Moroso cold air intake, Lincoln headers, BBK H-pipe straight(no mufflers or cat), Blue top ford injectors, and MSD Coil.

The car runs like a scalded dog, but as soon as it gets up to temp it will not restart if its shut off. Has good fuel pressure (and holds so if cant be injectors bleeding off) and okay spark (a little weak but should suffice). I put in a good used distributor (for the ignition module and pickup) just because. When I tried a good used coil it the spark got a little hotter but still will not hit a lick until it cools. Im a little stumped.
Anyone have any ideas? Thanks
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Old 04-27-2009, 07:23 PM
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88_5.0
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Double check the ignition module, and try checking your timing
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Old 04-27-2009, 08:28 PM
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84conversion50
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+1 on the ignition module.
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Old 04-27-2009, 08:53 PM
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WhiteFoxGT
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Heat soak on the starter
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Old 04-27-2009, 08:59 PM
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Riceinator
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If it runs fine when its hot, just doesnt start, I would lean towards a heat soaked started as mentioned above.
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Old 04-27-2009, 09:10 PM
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FordMustangXBA
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Define not starting? Does it crank?
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Old 04-28-2009, 12:14 PM
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91GTSTANGKID
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this hapened to me and it turned out to be the starter geting to hot... i changed it to a 1993 mustang starter cause it was alot smaller and now she starts everytime no problem
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Old 04-30-2009, 08:58 AM
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greasemonkey
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I put a used ignition module on it and then a whole distributor(so another module and pcikup). Once it cools it will start right up and I can time it. But when it doesnt start, its instant. Shut the key off and turn it back on as fast as you can and it will not start. Just cranks. I have spark, and good fuel pressure that holds. I did forget to check for a pulse. I will do that tonight. thanks
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