Is this 6 volts with the pump hooked up? Also the voltage is controlled to slow the pump down when engine is not under load, if is referred as a fuel pump speed controller, what does it do?? It reduces pump voltage to slow the pump speed of rotation and this saves on gas a tiny bit and extends the life of the pump. Most auto makers have been using this system for at least the last 15 years. You have failed to provide any vehicle make, model or year so that is about all I can tell you.
SOURCE: Fuel Pressure
did you reset full cutoff switch? this will be located in the rear of the vehicle in the wheel well behind the fabric. in some cases they are located underneath the drivers seat.
SOURCE: Fuel pump will not run, 96 Neon 2.0 SOHC
Personally I wouldnt bother tracing the wire as it is probably not worth your time, and just run a constant 12v from the battery to the relay on like 10ga wire. There is probably a short somewhere in the system which can be a real headache to find.
Also it may sound dumb, but check your fuses, and the fusible links under the hood. Chances are that they are all fine though, especially if you have dash lights.
SOURCE: NO POWER TO FUEL PUMP, RELAY WORKS FUSE GOOD
If you have put direct power to the fuel pump and it still wont work, then get an electrical test unit, test light, and ohmmeter, and check to see if there is a break in any of the wires, and that you have got a good ground connection from the ground feed.
After confirming you have good connections, then it will be obvious that the fuel pump needs replacing.
SOURCE: fuel problems 97 jimmy
Yeah, The fuel pump can go bad . The normal warranty on the pump is 12 months or 12,000 miles. This is very rare . I would check if the fuel pump had a lifetime warranty.
I would also check the ignition switch, and all the fuses to make sure the fuel pump is the failure.
Good Luck
SOURCE: 1999 oldsmobile silhouette van won't start. no power to fuel pump
I have a silhouette and it had the same problem
Follow the fuel pump wiring harness to where it plugs into the floor of the van--pull the connectors apart--they will probably be corroded, and you will possibly have to change both wiring harnesses or connectors.
122 views
Usually answered in minutes!
Sorry am not Amy. And it is a 2000 Oldsmobile silhouette
×