LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Causes of a no start after hot

Old Dec 7, 2007 | 04:51 PM
  #1  
wicked_95z's Avatar
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Causes of a no start after hot

Just looking for some causes of a no start when hot. Engine starts with a just a touch of a key when cold but after a few minutes of driving it wont start again. Turns over just fine just wont fire off until it cools down. Car is a P1-SC 383. Anything tune related, sensor or electrical.
Old Dec 7, 2007 | 05:58 PM
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Kevin Blown 95 TA's Avatar
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Originally Posted by wicked_95z
Just looking for some causes of a no start when hot. Engine starts with a just a touch of a key when cold but after a few minutes of driving it wont start again. Turns over just fine just wont fire off until it cools down. Car is a P1-SC 383. Anything tune related, sensor or electrical.
Might be the coil secondary windings opening up when hot. Or maybe the ignition module. If you suspect electronics getting hot and not working, you can use some cold spray, or maybe compressed air for cooling to isolate the problem and get it working again. Similarly, you can use a heat gun (be careful) to exaggerate or trigger it. If the ignition module is still on the head, you might want to space it out a bit so it doesn't heat soak as bad.
Old Dec 7, 2007 | 08:53 PM
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The ignition coil is brand new and the ignition coil has been relocated due to the procharger. I like the idea of trying a cold spray to try and elimninate some electronic items. I have a heat gun so I could try that as well. Thanks
Old Dec 13, 2007 | 06:03 PM
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Figured it out. It turns out the battery was bad. I guess it wasnt turning over quite fast enough to light it off. Thanks for your input.
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