Apr 03, 2017 · It can come 2 ways: The old style used the solenoid case as the ground, which automatically grounded the solenoid when it was screwed into the carburetor and the black wire went to the key switch. Presently, there are 2 wires, the gray wire goes to the key switch and the black wire goes to ground.”
No Power To Fuel Pump, 2000 Windstar My problem started as an intermittent start, but progressively got worse and is now a no start condition. When I turn the key I do not hear the fuel pump turn on. So far I have replaced the battery, fuel filter, fuel pump fuse twice, fuel pump relay and....Fuel Pump (ouch I know).
If your engine has the oil pressure switch I would wire it in. On my 4.3 Mercruiser (carburected w/electric fuel pump) I still pump the throttle 8-10 times, crank the engine over (it usually doesn't start first time), but at that point it has built up oil pressure and I can hear the fuel pump running. Next try it always fires right up.
Mar 11, 2014 · Pump wiring: Anytime the ignition switch is in the Run position and the test point is jumpered to ground, there should be at least 12 volts present on the black/pink wire. With power off, check the pump ground: you should see less than 1 ohm between the black wire and chassis ground.
The fuel pump is located in the fuel tank. Last pump I bought from Toyota was $183.00, aftermarket pumps are less expensive though. Aftermarket fuel pumps, even those branded as original equipment replacement often have serious quality and reliability issues in comparison to factory units.
I put mine on a toggle switch,use it to prime stock pump after it sits for a while,fuel will drain back to tank after sitting for a while,saves on cranking starter an batt.also cures vapor locking by forcing fuel through lines on hot days.didnt want it on key sometimes it gets fumey in cab with pump on.
Jun 13, 2009 · Connect the probe end of the light to the post on top of the pump (beneath the shield) and clip your ground wire to the license plate bolt. Turn the key on (don't crank) and see if you have a light; if not, your next stop will be inside the car.
In the fuel-injection system, used on some engines, the petrol and air are mixed in the inlet manifold. A fuel pump draws petrol out of the tank through a pipe to the carburettor. The pump may be mechanical worked by the engine - or it may be electric, in which case it is usually next to or even inside the fuel tank.