Question about 2007 Yamaha Road Star

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I have no power to fuel pump. Where should I look for what is causing problem

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Fuse box, use a meter to check for blown fuses. Ignition switch, no longer sending power to the pump. All wire connections associated with the pump, switch and battery.

Posted on Mar 20, 2011

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'91 volvo 940 turbo only go so far b4 fuel pump relay & d # 1 fuse (ignition & fuel pump) get 2 hot when do I have 2 sit 15 min. 4 d fuel pump relay & fuse 2 cool D alternator is fine what cause this


I suspect the fuel pump circuit is drawing to much power. Do you have something else hooked into those wires(Audio equip?) The fuse is there to protect the relay. Have you put a bigger fuse (bigger number) in there to keep it from blowing the fuse? If not I suspect a bad fuel pump or a stuck fuel pressure regulator(Causing the pump to work too hard- drawing more electrical power) Just remember, its hard to put the smoke back in once it catches fire.

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Maybe this will help ---

Also check the fuel shut off switch since you do not have power.

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The first time may have been normal fuel pump diaphragm wear... and the second fuel pump may not be the correct part for the engine... the pump lever is a different size for different applications.. if you got the wrong fuel pump the pump lever coud have been of the inappropriate size and may have caused excessive fuel pressure or to long diaphragm travel rupturing it. Make sure that you get the exact fuel pump for your car before you pay for it. Otherwise if the fuel pump you bought was the correct part, it may have been deffective.

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What is causing the fuel pump to fail on my 1987 Nissan Stanza? The mechanic is about to put on the third new pump.


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