Questions & Answers for: prime test wire fuel pump

Question about 1990 Sierra

1 Answer

...to prime the engine with fuel thru the throtle body before u crank the engine over if it starts u have a fuel delivery problem. may be possible clogged injectors or fuel filter. or a weak fuel

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...Prime it, keep it reved up and it runs, put it gear or try to let it idle and it dies and won't start until you prime it???? Did you change the fuel presure regulator located in the throttle

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Question about 1990 Sierra

1 Answer

...prime the lines(in fact if i unhook the rubber supply lines at the tank fuel wont even come out of there when the key is on) is there some kind of special way to prime these pumps or should i start ...

...wire on connector to fuel pump when key is turned on, then nothing. I can hear the relay clicking when I turn key on, 2 secs later it clicks again. Have tried different relays with same result. Any ...

...fuel pump ant priming and i just put it in i had to run wires from the relay to the pump and it won't prime but starts up after a while when the fuel reaches the motor Have you cheked your fuel ...

Question about 1990 Sierra

2 Answers

...WIRE OFF OR BROKE OR THE PUMP MAY BE BAD. I HOPE THIS HELPS. JIMBO fuel pump? carb? or throttle body? if injected the fuel rail should have a test point it will look kinda like a tire valve may have ...

Question about 1990 Sierra

1 Answer

...2 of them are for the actual pump...run a test lamp on them...you should have power to it for 5 seconds ..when the key is 1st turned to the run position..thats the prime siglal to the

Question about 1990 Sierra

1 Answer

...fuel pump problem or a carb problem. It is call a Throttle Body Injection, that is why you see wires and electrical components. You stated that fuel came out of the fuel line with little pressure. It ...

...test your fuel pump on a 1994 GMC safari. Listening more often than not will not determine if the fuel pump is working, some are just too quiet even when inserting a hose in your tank and putting the ...

green connector on it. This wire will not be connected to anything. It is the pump prime, for test purposes. If you put 12 volts battery juice into the connector, it should make your fuel pump come on

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