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07/04/2025 11:41 am
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I have a 1991 GMC Sonoma pickup 4 cylinder manual transmission with 179,000 miles. It starts & runs fine in cooler weather but when the temperature is mid 70's or hotter, it dies when restarted after it is turned off and sits for 5 minutes or longer. Doesn't do it if I turn it off and restart it immediately. It runs fine after several restart/stalling cycles but before then it stalls when I pump gas pedal or if I just let it idle. What could cause this?
1 Answer
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07/04/2025 12:55 pm
Measure your fuel pressure using these instructions:
If fuel is fine, then it's likely some electronic. They don't like heat. Usually something to do with ignition, so pull out each plug and test for good spark.
