Question about 1999 GMC Suburban
It started as a intermentant problem were the vehicle would start, run for about two seconds, and stall. The problem is now to the point where I can not get it started at all. It use to start after about 30 attempts, but now it will not go. Just does the same thing; starts, runs for 1-2 seconds, stalls. It has a 5.7L engine, normally aspirated. The fuel filter was recently replaced in an attempt to solve the problem (It did not).
Turn the key to the on pos. and listen for a huming in the rear of the car as your fuel pump is in the tank. if you don't hear it then i would say that the pump is bad and need to be replace, but if you hear it it could be weak . try takeing off the air cleaner and spray some quick start down the intake and try starting it . if it start i would replace the pump . very easy to replace.
Posted on Nov 04, 2008
Try the crank sensor or the ignition control modual. but check your cap and rotor first
Posted on Dec 22, 2008
Check the connections on the oil pressure sending unit, or the sending unit itself. The sending unit moinitors oil pressure, but also supplies power to the fuel pump after the 3 second timing sequence after startup. As a safety feature, If it doesn't detect oil pressure, or if the connections are open, it'll kill the fuel pump and in turn, stopping the engine.
Posted on Dec 15, 2008
It is the pump relay causing the problem
Posted on Nov 10, 2008
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