Question about 1995 Chevrolet G20

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Hearing a vibration /humming from rear gas tank area

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That is your fuel pump. Get ready, its about to go. My 97 silverado did that and I wasnt sure what it was either and then it left me sitting on the side of the road.

If you choose to do it yourself let the tank run almost empty and the tank will be alot easier to lift when you take it out.

Posted on Sep 30, 2009

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I have a 1988 Oldsmoble cutlass supreme gt and it wont start unless i spray starter fluid in the carbuerator.


Sounds like you are not getting any gas to the carb. Turn the key one click with radio off but don't try to start the car and listen for a humming sound coming from the rear of the car (gas tank area). You are listening to hear for the fuel pump. If you don't hear any humming then either the fuel pump relay is shot (cheapest fix) or the fuel pump is shot.

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First check fuse in fuse box that powers fuel pump. If this is ok then turn key but do not start just till gage lights come on and listen for humming noise in gas tank, it will only run a few seconds so you might have to do this several times to hear it. Is best to have someone listen around gas tank area while you turn key..If you do not hear humming noise then this would indicate that pump is not working and needs to be replaced.....good luck and if this info is a help then Please rate my post...

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The car has been seemingly acting as if it is out of gas. I think its the fuel filter. But today it cut off all together. It will still turn over but will not crank. She my daughter said it also smoked a...


more than likely a clogged fuel filter[hopefully] if not that lets try this before you do anything.turn your key to the 'on' position can you hear a slight hum coming from the fuel pump in the gas tank under the rear of your car. it may take 2 people. one to turn the key on and one to listen at the rear of the car.try this several times to see if you hear the hum. if you hear the hum,the fuel pumps working. and then you know it's most likely a clogged fuel filter.if no hum heard,go under your hood to the main engine fuse box[black box] take the cover off of it. on the underside of lid,look for fuel pump relay,replace that relay with new one.if it's a fuse,replace the fuse. if this does'nt repair your problem,the fuel pump has went bad and in need of replacement.the pump is located inside the gas tank. the gas tank will have to come down and out in order to replace the bad fuel pump.try these solutions to see if they help,if you need further assistance,please repost your question to fixya.com and thank you for choosing fixya.com wish you the very best of luck!

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Is the fuel sending unit access area under the rear seat


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Need to find out where fule pump is?


if you hear a hum when you turn the key on, but not to start, its in that area. sometimes in the trunk, sometimes in the gas tank. On my model it was in the gas tank. Call any parts store and they can tell you exactly for your model.

Jul 12, 2010 | 1994 Nissan Altima

1 Answer

94 Altima, drivin along, just lost power, still had radio & lights, will turn over but will not start


Very good possibility that the Fuel Pump has gone out.
Find the Fuel Port on the Fuel Rail going to the Fuel Injectors. Remove the cap. Pack plenty of rags or paper towels around that area. Wear goggles to protect your eyes from Gas Spray! Using another wadded rag or paper towel partially covering this port and a small screw driver - depress the stem inside this port. Have a partner turn the Key over attempting to start the vehicle. A strong stream of gas should come out.
If no gas is coming out: check the Fuel Pump Relay/Fuses. Use a Voltmeter to check for voltage at these locations. The reading should be 11+ to 12 -volts.
If there is Voltage: Again with a partner behind the wheel, remove the gas cap. Place your ear up very close to the Gas Filler Tube (where you put gas in). Have your partner turn the key over to the On (not Start) Position which is the position just before Start. You should faintly hear the Fuel Pump humming. Have your partner turn the Key to the Start Position, again you should hear a very faint humming (over the car cranking).
If there is not indication of humming: Jack-Up and properly support the rear of the vehicle with jack stands. Once again with a partner behind the wheel: go under the vehicle and place your ear up close or on the gas tank. Have your partner turn the Key to the On Position. You should hear the humming.
If not, have your partner turn the Key to the Start Position. There should be humming.
If no humming there is a great chance your fuel pump has gone out.
Based on your year (1994) this is highly probable.
HOWEVER: If there is humming, change out your Fuel Filter and recheck for fuel at the fuel rail.

Let me know if this helped or if you have additional information or questions. Feel free to contact me at Fix Ya.com!

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THIS MAY SOUND STRANGE BUT DO YOU FEEL ANY VIBRATION IN THE SEAT WHEN YOU HEAR THE HUMMING IF SO I WOULD SUSPECT THE U/JOINTS IN YOUR DRIVE SHAFT ARE GOING BAD

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check for fuel pump hum by the gas tank with the key on, if no hum check fuses and relays (under the hood and dash) if they are good replace fuel pump. if you hear humming try replacing the fuel filter

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1 Answer

Gas smell


check for leaks in the fuel line from the gas tank up to the engine bay.the humming sound you hear at the back is your wheel bearing.it needs to be replaced.

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