Question about 1991 Honda Accord

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Fuel pump primes intermittently and the car only starts if the fuel pump primes when i turn the key to aux and i hear the 2 second hum it will start it seems to do this when it is humid only i have changed the fuel pump,fuel filter,relay,mapsensor plugs cap checked the wiring have power to pump but it only primes once in awhile car turns over fast

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6 Suggested Answers

6ya6ya

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Posted on Jan 02, 2017

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Anonymous

  • 182 Answers

SOURCE: 1992 honda accord lx will not start

sounds as if the wires on the fuel pump are unplugged or broken,or maybe a bad fuse,fuel pump relay.

Posted on Sep 05, 2008

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Anonymous

  • 19 Answers

SOURCE: 95 Accord starting problem

hi,i had the exact same problem,and after many frustrating months ,i found out that by changing the speed sensor relay(located on the gearbox),solved all the problems.6 months have passed and still no troubles.when the motor heats up yhe contacts in the relay expand and dont make contact,thats why if you wait a short time and it cools down a bit it starts.i hope it works for you also.
steve.

Posted on Oct 17, 2008

mrgreenz

Daniel Arellano

  • 962 Answers

SOURCE: Fuel pump, Main Relay. Fuel pump relay, Fuel filter.

You need a new pump. defintely 100% sure.

Posted on Jan 10, 2009

Anonymous

  • 16 Answers

SOURCE: 91 honda civic dx 1.5L quit running properly.

bro, check ur main relay. its under the dash. replace it, check also ur distributor(replace it). and also your ECU

Posted on Feb 22, 2009

Testimonial: "right answer but I received it much too late. I went to a mechanic and paid him to fix it."

Anonymous

  • 125 Answers

SOURCE: 98 Honda Accord Wont Start

either have a shop scan it for trouble codes or buy a scanner your self at local parts store have OBDII scanner and find out for your self it could be a number of things.

Posted on Feb 26, 2009

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1 Answer

2002 cavalier 2.4 will not start fuel pump runs has spark


FUEL PUMP ONLY HUM'S FOR 2 SECONDS WHEN YOU TURN KEY TO ON, NOT START, POSITION. YOU CANNOT HEAR PUMP RUN WHEN CAR IS RUNNING ! THIS 2 SEC., IS THE PUMP PRIMING ITSELF TO START ENGINE. YOU MIGHT BE HEARING EITHER THE POWER STEERING OR WHATEVER, NOT THE FUEL PUMP!!!!!! GIVEN THE YEAR OF THIS CAR, YOUR FUEL PUMP COULD BE BAD, CHECK FUSES, RELAY, GROUND WIRES, TO PUMP, ALSO CHANGE YOUR FUEL FILTER !!!!! AIR FILTER ALSO !!!!!!! SPARK PLUG WIRES SHOULD ALSO BE REPLACED !!!!

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My brake lights are stuck on, and my fuel pump kicks off after 30 sec after starting the car, would the brake lights cause that problem


brake light switch not mounted anymore, you probably kick it not relizing what you did ! re-install switch to bracket @ pedal . NO , this has nothing to do with fuel pump ! check fuses, & fuel pump relay, it may have a fuse also ! ? when you turn key on, you should hear a hum for 2 seconds, thats your pump priming it self to start your engine. check all ground wires for good ground !!!!!!!

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Need to replace a fuel filter on 89 buick century


then the pump is not working, or maybe not primed system yet. Listen carefully, and turn key to ON, not start. Listen for fuel pump to hum in the tank for 5 seconds. Can you hear it?

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Fuel pump/filter? ran out of gas, can't seem to prime after 2 gal in tank, runs when placing a bit in through throttle body then dies.


might of clogged filter also 2 gal might not be enough check for fuel pump noise also when you run these cars out of fuel the pump over heats and goes bad

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I think i ran my mustang gt out of gas,i just got this car today from a good friend.It was idling in the drive way and then died without warning so i think it ran out of gas according to the guage!I put...


You need to make sure you put in AT LEAST 2 gallons of gas, more if the car is not level. It might take a few cycles of the key to get the fuel line primed again. A full cycle is Off-On-Start. When you turn the key to on, listen for the fuel pump. It should run for a few seconds and then shut off, turn the key to start for a few seconds and then back to off... This will have to be repeated several times. You should be able to hear the fuel pump from the drivers seat. I will be a faint hum or hiss coming from the back seats.

Sep 27, 2010 | 1995 Ford Mustang

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2006 Cherokee KJ 2.8 CRD intermittent problem. Engine starts then stops. After priming at fuel filter will start & run ok


fuel pump relay . you should hear the fuel pump run for 5 seconds as soon as you turn the key on .after that the cranking sensor takes over when engine it turned over to start

May 26, 2010 | 2006 Jeep Liberty

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I have a '96 cavalier that makes a humming noise in the gas tank within 5 seconds of starting. I have tried two fuel pumps but the noise is still there!!!


Your fuel pump is supposed to hum, when you turn the key it primes the system and it will hum. When the car is running the fuel pump is running and it will hum. If the noise is excessive then try a higher quality fuel pump, it may be less noisy. You will hear the fuel pump on a lot of vehicles tho when you are sitting at a stop light with your radio off and everything quiet in the car.

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1 Answer

Have a 2001 olds alero 2.4 liter/when i start the car,should the hum from the the fuel pump alwas be heard or just when the preesure is low,have turned the key on a time or two and did not hear a hum,i may...


you should only hear it when you first turn the key on for 5 second prime. after car is running it won't be noticeable,but if your hearing it run and hum,your driving on borrowed time!
the gas in the tank is what keeps the motor lubed

Dec 07, 2009 | 2001 Oldsmobile Alero

3 Answers

My explorer ran out of gas, i filled it up to about a half a tank, now it just turns over but wont start


if it's fuel injected,look on the fuel rail for a schrader valve--looks just like a valve stem on a tire but shorter.remove cap,again just like on a tire.turn key to on-push valve stem in as if to let air out if you get air,then gasoline,you have just bled the system.replace cap,start car.if you get no gas,remove gas tank cap,turn on key,listen for ""hum'' of fuel tank.no hum,check fuel pump.modern[plastic] fuel pumps will self destruct if run dry,even for a short time.

Sep 21, 2009 | 2000 Ford Explorer

1 Answer

Ford focus 1.8 1999 engine turns over but won't start


you may not have enough fuel presur yet. try this -
turn key to on, listen for fuel pump noise (humming) for about 5 seconds. If no hum, you have a problem. If it hums, good. Now, turn key off for 30 seconds and turn key to "on" again. Repeat 5 times. Then try to start car.

The fel pump does run in "start" mode continually.

Jan 09, 2009 | 2000 Ford Focus

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