Cranks, has spark, no fuel pulses at fuel injectors

Tiny
DEANNA MCCOY
  • MEMBER
  • 2002 GMC SIERRA
  • 4.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
Truck ran when parked 5 years ago as transmission went bad. Just replaced transmission and now truck won't start. Replaced fuel regulator, new battery, engine cranks and has spark just not getting fuel to injectors.
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Saturday, November 21st, 2020 AT 2:50 PM

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Tiny
DANNY L
  • EXPERT
Hello, I'm Danny.

You say you replaced the fuel regulator but you might have a failed fuel pump due to sitting for so long. I would suggest to first perform a fuel pressure test. If you don't have access to a fuel pressure tester most auto parts stores have a tool loaner program and can rent you one. Here is a tutorial showing what is involved:

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

After performing this test get back to us with the results and we'll go from there. The proper fuel pressure for your truck should be 55- 62 psi with key on-engine off. Hope this helps and thanks for using 2CarPros.
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Saturday, November 21st, 2020 AT 4:57 PM

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