Question about 1995 Chevrolet Lumina Apv
This is a new fuel pump that is not pumping the fuel to the engine.
Is the fuel pump actually coming on??? If it isn't, I would start by checking for a fuel pump relay. This is usually located up in the engine compartment in a black box on the drivers side. Relays are small black boxes approx 1"x1". These have a tendency to go out just like fuses. Also double check your fuses. If you suspect a that a relay is bad, you can interchange them with other relays that look the exact same to see if they really are the problems. These relays are very quick and easy to change and are very cheap. They usually run no more than $10-15.
Any further questions, feel free to ask.
Posted on Feb 03, 2009
Assuming that you have power to the new pump and grounds...etc..ofcourse your fuse is good too. once youn have varified that you did get a good fuel pump. I assume that this is a 3.1 engine? you have checked all fuses? e.c.m. (computer) fuse. if you do have power and grounds then you should put a fuel pressure tester on it. (its a guage that taps into the fuel rail ) I assume that you don't have one. anyway make sure that your filter isn't plugged. **** you have a fuel pressure regulator on the fuel rail which is located on top of the intake manifold. This supplies fuel to the injectors. The regulator has a vacuum hose to it & has direct manifold vacuum. Anyway if this regulator goes bad it could return the fuel back to the tank through the return line without building up fuel pressure to run your injectors. try blocking off the return line back to the pump.(be careful because it is a hard plastic line and could colapse) If you gain pressure and your engine will momentarily run than you could suspet the regulator. I don't know if this helps ? Also make sure that somehow that your line isn't smashed somewhere leading back up through the front.
Posted on Feb 03, 2009
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Posted on Jan 02, 2017
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