Cranks but will not start

Tiny
DOLO DOLLISON
  • MEMBER
  • 1996 GMC SUBURBAN
  • 7.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 1,725,800 MILES
When I attempted to start, I don't hear the fuel pump. It cranks, but it won't start. I have gas in my tank and the fuel pump has recently been replaced, and so has the fuel pump relay and ECM.
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Wednesday, September 11th, 2019 AT 12:42 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Welcome to 2CarPros.

Here is a really simple test. See if the engine starts for a couple seconds using starting fluid. If it does, then it is a fuel related issue. If it doesn't, then it is ignition.

Do that first. Here are links that you may find helpful:

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

Here are links to check for spark and fuel:

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

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Also, check to make sure fuse L8 in the under-hood fuse box is good. See attached picture.

Do this and let me know what happens.

Take care,
Joe
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Wednesday, September 11th, 2019 AT 6:03 PM

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