Question about 1996 Chevrolet C1500
I have a 1996 C1500 4.3L that quit running so I replaced the fuel pump assy and filter since I could not hear the pump run. I then could not get it to start so I checked for fuel coming from the injectors and found none. I replaced theSPCI fuel injector spider with the MFI and it would start but run for no more than 10 seconds. I replaced the fuel pump relay and bought a fuel pressure gauge but could only get a reading of a few pounds when the pump ran to prime. I then tried a jumper wire on the oil pressure/fuel pump circuit but no change. I don't think the pump runs after priming but don't know where to look next.
Try the ignition control module located under the distributor cap $30 - $60. This is one of two parts on this truck that will cause it to not run or shut down after running for only a short time. The other is the fuel pump I think it is safe to rule that out as your problem
Posted on Jan 08, 2009
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Posted on Jan 02, 2017
SOURCE: starts then quits
Was there fuel pressure before you changed everything? It could also be the pressure regulator sticking or bad. When you crank it over and let off the key you should hear the fuel pump run for a couple seconds and then shut off. If it is doing that then I would be looking to see if you have likes hooked up wrong at the back of the engine or try replacing the pressure regulator.
Posted on Dec 23, 2008
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