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.
Wednesday, November 30th, 2016 AT 5:27 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,144 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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