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Just put in new battery. Seems if the fuel pump is not priming. Checked all fuses and bike wants to go but I just can't hear that sound when you turn on the ignition. Greg

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Are you saying that it is running or not? Could be a fuel pump relay. What year, make and model?

Posted on Apr 21, 2017

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2 Answers

Changed fuel pump, lr2 2008 wont start even although engine is rolling. It ran down 2 batteries and still wont start


Was it running before changing FP? Have you tested fuel pressure? Have you checked for spark at plugs and injector pulse with a noid light? Remember, brand new parts are sometimes bad too.

Dec 18, 2014 | 2008 Land Rover LR2

1 Answer

How do I know if my fuel pump is gone


Here is a quick test: Turn the keys so that the car is "on" but don't turn it that the engine crank. You should be able to hear a "buzzing" sound coming from the fuel tank for a few seconds each time you turn the keys to ON. The sound you hear is the fuel pump priming the engine.
If you don't hear any sound at all, it is an indication the fuel pump is not running. Check the fuse before changing out the pump.

Another indication is if you start and the car seems to start but then engine stalls. Even if you apply the gas, the engine still stalls, this indicate lack of fuel coming in due to fuel pump not working.

Jun 16, 2014 | 2002 Mitsubishi Galant

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1997 blazer has spark, new cam sensor, fuel filter..will crack over, but will not start. I tried starter fluid in the intake, and still does not start. any ideas?


Fuel pressure regulator probabaly flooding it when you turn the key forward it primes but the regulator just dumps to much fuel into the cylinders flooding the plugs pull a plug out after you try starting it if it dont start and see if there full of gas

Feb 25, 2013 | 1997 Chevrolet Blazer

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No fuel up to injecter pump truck just stalled


Did you check for fuel pressure on the line from the tank while you had the filter off? Do you hear your fuel pump prime when you turn the ignition on? First I would listen for the hum of the fuel pump when you turn the key to the run position (not starting the engine) May have to get a helper and listen at the gas filler neck with the cap off. If you dont hear your fuel pump, check your fuses and relays. If the relay clicks when your helper turns the key on ( put your finger on the relay and ear down close to feel/hear the relay actuate)., and fuse is good, yet you do not hear the pump prime, I would say your fuel pump is shot.

If it is a diesel,check for fuel pressure coming off the direct drive pump hose while cranking the motor.

Mike

Jun 14, 2011 | 1994 Dodge Ram 3500

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My 98 Nissan Altima won't start. It has a brand new starter, brand new spark plugs, a new alternator, and a new battery, so I know it has nothing to do with any of them. The distributor was replaced at...


seems as if the system isnt priming itself when you first move the key to ON in which the fuel pump would kick on for just a moment to prime the carb with fuel if it doesnt sound like the fuel pump is starting at that moment there might be a problem with the fuel pump or a relay going to it or maybe a fuse relating to the fuel pump

Mar 14, 2017 | 1998 Nissan Altima

3 Answers

How do you check if your fuel pump is bad without removing the gas tank


Put the key into the ignition and turn it to the second position. This position will light up the dash lights but will not crank the engine.
Listen for a faint or soft humming sound coming from the rear of the vehicle, specifically the gas tank. This will happen almost immediately after you turn the key to the second position, so you'll have to listen closely and be ready for it. The humming is the sound of the fuel pump priming, or pressurizing, the fuel system. If you do not hear this sound, you may have a faulty fuel pump.
  1. Check to make sure there is enough fuel in the gas tank. Although this may seem obvious, it happens to the best of us. If you're gas tank is near empty, the engine may not start. This happens more frequently in the winter time in cold climates; the low temperatures cause condensation to form on the inside of the gas tank. Since water doesn't burn, the fuel pump tries to draw in fuel and instead gets a mixture of water and gasoline and cannot get enough fuel to the engine for combustion.
    Check to see that the vehicle starts. Even if you don't hear the fuel pump priming, attempt to start the vehicle. If the engine won't turn over (start) and you haven't heard the fuel pump prime the system, it is a good indication that the fuel pump may have failed.

    Check the fuel pump fuse. If the fuse is blown, the fuel pump will not prime. Open the fuse box under the dash of your vehicle and locate the fuse for the fuel pump. Alternately, some vehicles locate the fuel pump fuse in a fuse box under the hood. Remove the fuse box cover (specific removal will vary according to the vehicle). Check the fuse to see if the metal strip inside the fuse has popped. Replace the fuse if the metal strip has popped; if it hasn't popped, it is most likely your fuel pump itself that has failed.

Nov 03, 2009 | 1992 Honda Accord

1 Answer

Car trys to crank but want


How about the fuel pump relay? or possibly the ASD relay. need to make sure you are getting voltage to the fuel pump when the key is on, the pump will run only for a few seconds when you turn the key to start to prime the system. If you dont hear the pump prime, check the aforementioned relays and associated fuses.

Feb 10, 2009 | 1990 Plymouth Laser

1 Answer

Put new fuel pump in and still not running, when listening for the fuel pump to prime we can not hear it running.


must be a relay take the relay out from another source and put it in the fuel pump side

Oct 30, 2008 | 2002 Chevrolet Cavalier Coupe

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1997 GMC K1500 4x4 5.7 ex.cab SFI injection system


fuel pump died replaced it truck ran poorly afterwards. Had a prussuer test done pump determend pump was no good. Put in another ran good for 2 days started running poorly hard to start no power. 2nd fuel pump. So i figure another bad new fuel pump wow changed it put in a third brand new fuel pump. Still will not eve start now. I had it tuned up 2 months ago new plugs rotor, cap, etc. put in a new fuel filter made sure it is on proper checked all connections for leaks. this cannot be a fuel pump problem now. no problem with the elctrical i figure i have great spark on ignition tester. I can hear the fuel pump prime when i turn the key. but when i went and checked the fuel port i had no pressure. When it is being cranked gas sews out of the test port. Also i dont if this is comon cause i used to turn my keyand go. but when i have someone turn the key and i listen at the gas tank whn the key is shut off i hear gs spraying back into the gas tank. So i am open for opinions.

May 18, 2008 | 1993 GMC Sierra K1500

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