Easy way to tell if its in the ignition switch is to simply turn it on. Does the radio turn on, and does the instrument panel have all the lights in it light up? (Check engine, abs, brake, etc) if so, its not in the ignition. As far as which wire it is to the pump, without dropping the tank, you wont beable to gain access to the harness, so u might as well just drop the tank, remove the ring holding the sending unit into the tank, and remove it. Make sure you have a drain pan handy, and a blow gun. Turn the sending unit/fuel pump assembly upside down, drain all the gas from it. Use the blow gun to blow off residual. Take it atleast 15 ft from the tank, and on the fuel pump it self, there will be 2 studs on the pump. Put ground to one, power the other. Doesnt matter which way, as long as u dont run it dry for an extended period of time. One way will pump, one way will push. If u have any movement from the pump, u will feel it spin fast. Try it a few times, if every time it works, then the pump is good. Most likely the pump is bad, and needs replacement. If this happens, make sure u get the right pump. There are 2 different models. Where the bottom mounts to the sending unit, it sits in a rubber grommet. If the shape is a tear shape, its one design, if its shaped like a D, its the other. Make sure you know which one u have before you buy the pump.
Saturday, August 28th, 2010 AT 8:59 PM