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Running rough and now it will not start

Tiny
JO ANNE-NEAL MITCHELL
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 4.3L
  • 6 CYL
  • AUTOMATIC
  • 180,000 MILES
Engine had been running rough at 3000 rpm's, now it wont start, even with starting fluid- which probably means that it is not a fuel problem, but an electrical or sensor situation. Has new battery and alternator. There is spark at coil, yet testing at each cylinder has not been done.
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Wednesday, November 30th, 2016 AT 5:27 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hey Jo Anne-Neal,

These cars had a big problem with the injector assembly inside the intake manifold. But please check the fuel pressure to start, here are a couple of giuse that can help find the problem.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

and

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

Please let us know what you find so it will help others.

Best, Ken

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Friday, January 29th, 2021 AT 11:47 AM

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