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I got a 2001 grand am gt put in a new fuel pump and fuel pressure regulator and it still just fires but dies it runs off starting fluid onlky till that burns off then dies
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What make , model and year vehicle ? It makes a difference . It does start but stops running right away ? Before replacing the pump and regulator did you do a fuel pressure test ? Hooking up a fuel pressure gauge ? Or just guessing that was the problem ? And did your test the electrical circuit of the fuel pump ?
Fuel injectors not firing ? Did you hook up a fuel pressure gauge an check pressure ? Anti-theft system problem ! Probably not bad fuel pump. Your missing something .
well you narrowed it down to a fuel problem. not sure about your model, but most cars have a fuel pressure regulator on the fuel rail to reduce un needed pressures. that could possibly be bad. its cylinder in shape and has a vacuum hose connected to it. check the hose and that unit.
If it fires on starting fluid, its not getting fuel. If you have acess to the tools test the fuel pressure. If not start with the filter, its cheap and if the pump sounds like its running this would be the next major cause. If that dont fix it, its probably the pump. Had a sunfire around the same year that would actually run for ten minutes or so before it died. Never checked the fuel pump because the car would run so I assumed it was working, I mean you could hear it kick on. But after changing every thing else the car ended up needing a fuel pump. Hope this helps
check the fuel pressure there may be a block at the regulator also check the amp draw on the fuel pump, a short to ground could be the source of your problems with the melted wiring
HEY!! I had same problem and i didnt know i solved it til i put in a brand new battery! I think the battery was getting old, and the extra amps told the 'computer' that the car wasnt running and it just died at start up sometimes. the new battery must have kept the computer from 'glitching off' when we started it. and all is great now!
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