Question about 1996 Chevrolet Impala SS
I would start with checking the fuse and relay for that circuit. If that is fine then you will want to check the oil sending unit. If the sending unit breaks, the fuel pump will not work. Please state as much information as you can. Please write back with everything that you have tested and noticed. I will do my best to help. good luck.
Posted on Mar 04, 2014
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Posted on Jan 02, 2017
Is the fuel pump really bad?
Our son's erstwhile Ford something had a shock sensitive switch that when tripped by a big pothole, shut the (electric) fuel pump off and had to be reset before it would function again.
Posted on Jul 02, 2008
Not sure on that model what controls the injector pulse, but most vehicles either use the signal from the crankshaft position sensor or a cam position sensor. You should use a LED testlight, (NOT A BULB TESTLIGHT!!) and backprobe the injector terminals (with the other lead of the testlight to ground) while cranking the engine over. If the light flashes on one of the terminals, then you are getting injector pulse, and the fault lies elsewhere. If not, then you will need to replace whatver sensor is used to provide engine position signal on that model. Also, check the wiring to that sensor. Some vehicles have problems with the crankshaft pulley harmonic balancer failing and damaging either the body of the crank position sensor or its wiring.
Posted on Nov 02, 2008
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