Question about 1998 Chevrolet K1500

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Electroni fuel pump keeps running when I turn ignition off

  • Why electronic fuel pump keeps running on truck when ignition is off

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  • Anonymous Mar 03, 2009

    when i turn off my 91' ford ranger it keeps running and it annoying. i have to unhook my battery everytime i get out of her. but it only started after i got my new battery.

  • dstonehouse Mar 30, 2009

    I have 97 k1500, when I shut moter off I can hear fuel pump running for about 15 seconds

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  • 422 Answers

Hi there it sounds to me like the fuel pump relay is sticking have it tested or replaced

Posted on Aug 28, 2008

  • Bruce Gearheard Oct 26, 2012

    Thanks for your help, I apriciate it.

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1 Answer

My 1999 the engine keeps just shut off while driving down the road the engine keeps turning but wont crank I put some engine starter in the carb.and it tried to start.could it be the fuel pump


if it was the fuel pump engine should start with starter spray at least for a second or two, so, it sounds like your fuel pump is bad.
turn ignition to run and try hearing the pump run.

Dec 17, 2014 | Cars & Trucks

1 Answer

No exceleration now truck wont start


Fuel pump relay, turning the ignition on runs the fuel pump for about two seconds to pressure the fuel rail to start, then the fuel pump relay takes over once engine is started, it relies on a signal from the ignition or ECU (to say keep running). Either the relay has gone down or the relay has lost the signal. Don't bypass the relay, it's a safety feature, to stop the fuel pump if a fuel line ruptures.

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1 Answer

Electronic fuel pump doesn't alway run when you turn on the ignition


That only means the pressure is still within range,so it doesn't have to run until injectors let fuel thru into engine and it fires up.
What problem are you having,that makes you think it has a fuel problem.Be specific,please? don-ohio (:^)

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1 Answer

My fuel pump keeps running fuel rail up to pressure even after the car has been stopped. i cant find any leaks and thought the pump should stop after turning off ignition. any ideas


The fuel pump relay has to be checked.Usually, when this relay fails it gets stuck in the on position, allowing the fuel pump to continue running even though the car is turned off.Fuel pump relay is under dash above E-brake. Fuel pump relay has 2 White with black stripe wires thar are 12 volt with ignition on.

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CHECK FUEL PUMP FUSE AND RELAY.IF BOTH GOOD LISTEN FOR FUEL PUMP RUNNING IN GAS TANK WHEN YOU TURN ON THE IGNITION SWITCH.YOU HEAR NO SOUND.SCAN VAN FIRST FOR PCM FAULTS SINCE IT CONTROLS FUEL PUMP IF PCM GOOD.FUEL PUMP IS BAD.IF FUEL PUMP RUNNING REPLACE FUEL FILTER.

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The anti thieft system is keeping it from running.

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94 Old Cutlass Ciero 3.1 engine starts and dies won't stay running


Replace the oil pressure switch next to the oil filter. When you turn on the ignition the fuel pump runs to prime the system then turns off. Then the oil pressure switch runs the fuel pump to keep the engine running. To test, connect the fuel pump test wire(located at the left front wheel well) to the battery. This will bypass the pressure switch and the engine should run.

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My electric fuel pump keeps running when i turn off the ignition?


replace the fuel pump relay, it is sticking closed and keeping the fuel pump running, the realy is located under the hood.

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