Question about 1992 Honda Prelude

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When i try cranking the car sometimes the fuel pump won"t come on sometimes the pump runs sometimes it dosent

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There is a relay that goes to your fuel pump, u might wanna try replacing that and see if that helps your problem. if it doesent than i would try replacing the fuel pump itself. hope this helps you and have a good day :)

Posted on Aug 23, 2010

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My 1998 gmc snonma votec wont start it cranks and cranks and after about 20 mins it starts after that i can shout it off and it will fire back up fine then a day will go by and it dose the same thing


You have to check the fuel pump pressure to make sure it is supplying sufficient fuel pressure..Try turning the switch to on but do not start..now listen for the fuel pump to prime the system..it should run for 4-5 seconds the shut off..now try and start..if it is fully primed it should start...note although you are getting some gas dosent mean the pump is ok...sometimes it starts to go bad and then all at once it will let you down for good...have it checked out..good luck

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Sounds like something electrical, but you will have to narrow down the possibilities to proceed.
When it won't start, you need to find out if you are loosing spark to the plugs or fuel. Then go from there with your diagnosis.

Aug 28, 2012 | Cars & Trucks

1 Answer

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Aug 07, 2012 | Toyota Camry Cars & Trucks

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Gas no pumping , car does crank


if this is a fuel injection system its possible that the fuel pump has seized when you last turn off the motor.the brushes and comutator in the pump wear out and sometimes they will work fine then the next time you go to start it they seize and won`t start.

Apr 03, 2012 | Cars & Trucks

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Can you tell me where the crankshaft sensor is located? Would this being bad make it not start sometimes? Sometimes it will start up, other times, not. Sounds like the fuel pump is not running when it...


the crank sensor is behind the crank pulley and must pull off the pulley to gain access to it and it must have the air gap set so the timing slots don`t hit it when the motor is running,this can cause your problem also if the wires rub through by the crank pulley can cause it as well.you say you don`t hear the fuel pump running when it won`t start then you need to make sure that is what is happening as this will cause an intermittent no start(pump works sometimes).do you get a 2 second run pump prime when the key is turned on and a no start then it could be the crank sensor as the computer looks for a crank signal from the crank sensor when trying to start the car.

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2 Answers

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sounds like its not working properly, the fuel pump pumps or it does't, then goes to regulator this is where pressure is adjusted. check fuel pressure with gauge, sometimes even new fuel pumps don't pump enough fuel. most fuel injected cars have over 50 pounds pressure.

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1 Answer

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have you checked for spark, check your auto shut down relay try swapping it with the ac relay can u hear your fuel pump run when you turn the key on?

Dec 18, 2010 | 1995 Jeep Grand Cherokee

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Won"t start sometimes.


sound like fuel pump pressure low change fuel filter.if that dont fix it . probably fuel pump. if fuel pump good . get a scanner. because a bad coolant sensor cam sensor crank sensor . coil pack module could be bad.also bad pcm.

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