View Full Version : 89 5.0 slightly modded fuel pressure question.
house308
07-12-2011, 06:18 PM
my 89 stang has no issues with starting or running, but when i checked my fuel pressure it goes up to where i had set it at 42psi and it drops to zero immediately. in my experience when that happens its usually the regulator or fuel pump, but i have replaced the regulator with an aeromotive one, and the pump is a 190lph bbk. any info would be great.
DNeinstadt
07-12-2011, 06:21 PM
Maybe I'm missing it but where are the symptoms? More specifically, what is the problem you are having?
house308
07-12-2011, 06:30 PM
no symptoms, just fuel pressure drops off right away when i have a gauge on it.
DNeinstadt
07-12-2011, 09:08 PM
Are you sure your gauge works?
DNeinstadt
07-12-2011, 09:08 PM
Is there an actual problem with the car or just what you have seen?
house308
07-12-2011, 09:14 PM
no problems, i worked on an explorer today that had the same issue with fuel pressure and it has a bad injector that is dumping fuel. my car runs fine and starts fine doesnt bog out, just the fuel pressure dropping off so quickly is what has me boggled.
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