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Intermittent starts, now will not start at all

Tiny
RWOLLIN
  • MEMBER
  • 2004 OLDSMOBILE ALERO
  • 3.4L
  • 6 CYL
  • 2WD
  • 69,000 MILES
Car was starting sometimes but not always.
I put a timing light on it and cranked it but got no flash fault. Code reader says no information stored. But I had disconnected the battery Hoping to reset the commuter still no luck. Also, swapped fuel pump relay with daytime driving light relay, still will not start at all now.
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Monday, June 25th, 2018 AT 12:06 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

Okay, it sounds like you have no spark. There are several possibilities. Crank sensor, ignition module or wiring issue.

You should also check for fuel pressure as well.

Disconnecting the battery does nothing. It will not cure any issue.

Roy

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

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

https://www.2carpros.com/articles/how-to-test-an-ignition-system
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Monday, June 25th, 2018 AT 2:04 PM

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