Will not stay running

Tiny
APRIL ROSE
  • MEMBER
  • 2002 CHEVROLET BLAZER
  • 4WD
  • AUTOMATIC
  • 269,000 MILES
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.
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Monday, July 25th, 2016 AT 5:49 AM

2 Replies

Tiny
HMAC300
  • CERTIFIED MECHANIC
Try resetting security system first if you have changed battery recently or disconnected it will do that. See picture.
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Monday, July 25th, 2016 AT 6:59 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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

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Monday, July 25th, 2016 AT 9:54 AM

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