Will not stay running

2002 CHEVROLET BLAZER
269,000 MILES • 4WD • AUTOMATIC
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APRIL ROSE
  • MEMBER
  • 1 POST
It will turn over and start, but shuts off after twenty seconds of running. I changed the fuel pump, filter, line, the relay switch, fuses and oil pressure socket. I am clueless what to do next.
Jul 24, 2016 at 10:49 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
try resetting security system first if you have changed battery recently or disconnected it will do that. see picture.
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Jul 24, 2016 at 11:59 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,224 POSTS
If I can add in here, it could be the crankshaft angle sensor or the fuel pump, here are some guides to help.

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

and

https://www.2carpros.com/articles/car-cranks-but-wont-start


Please let us know what you find

Best, Ken


Jul 25, 2016 at 2:54 AM
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