96 GMC JIMMY 4X4 4.3L CSEFI I HAVE FUEL TO THE FUEL METER BODY BUT WILL NOT START

  • Tiny
  • donnie7
  • 1996 GMC Jimmy
  • 250,000 miles

I have recently replaced the fuel tank, fuel pump, fuel filter, complete tune up, spark plugs, wires, distributor cap and rotor. Before I did all this I replaced fuel tank fuel filter fuel pump. Complete tune up. What should I do?

Thursday, May 3rd, 2012 AT 8:45 PM

4 Answers

  • Tiny
  • rasmataz
  • Member

Check if the injectors are pulsing and also if the fuel pressure is within specs-

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Thursday, May 3rd, 2012 AT 8:58 PM
  • Tiny
  • donnie7
  • Member

Fuel pressure is damn near perfect and I have pulsing in all the injectors but 2 have constant power with ignition on and they pulse when motor is cranked still wont start. I replaced the crank shaft sensor earlier today as well

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Friday, May 4th, 2012 AT 2:14 AM
  • Tiny
  • rasmataz
  • Member

If the injectors are pulsing it should be injecting fuel into the cylinders-you sure its not clogged-

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Friday, May 4th, 2012 AT 6:49 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,583 posts

ALL injectors should have constant power when the key is on. What is the fuel pressure?

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Friday, May 4th, 2012 AT 10:03 AM

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