Crank no start issue

Tiny
JBENZ2679
  • MEMBER
  • 1999 GMC SONOMA
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
I have spark and fuel to the rail turns over but won't start.
Wednesday, June 2nd, 2021 AT 5:47 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Hi,

A crank no start can be a couple of things. The idea that you checked for spark and fuel indicates to me you certainly have a good idea of the possible causes.

First, is the fuel pressure within the manufacturer's specs? I attached the specifications in pic 1 below. If you haven't confirmed that, do so. Here is a link that explains how to check fuel pressure:

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

If the pressure is within the manufacturer's specs, I need you to try something. See if the engine starts for a couple of seconds using starting fluid. If it does and then stalls, we know it is a fuel-related issue. At that point, we will need to check for an injector pulse to see why fuel isn't entering the engine.sHere is a link that explains how to test for an injector pulse:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Start with this and let me know the results. Also, if it is possible, record the engine cranking and upload it for me to hear.

Take care,

Joe
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Wednesday, June 2nd, 2021 AT 7:41 PM

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