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I changed fuel filter and fuel pump .car still wont start intill the pump Stops pumping not sure what to do at this point im basically a parts changer that's it.i feel like the pvc valve may be clogged I'm not sure please help.

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I had a similor question and i staterd cleaning tubs comming from petrol tank and replace the petrol filter now ok-naleen

Posted on Jan 10, 2013

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I read this the other day and it made no sense to me.
The PCV would have nothing to do with the engine starting, only how it runs.
You would need to check fuel pressure at the injector rail with a gauge to see if the pump is working.
The pump should run for 3 seconds with the key on then stop until the engine starts. It gets power from the pump relay then once the oil pressure switch shows oil pressure. If the engine does not start the pump should not have power.

Posted on Jan 09, 2013

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  • jason rosario Jan 10, 2013

    The pump runs for a while but soon as it shuts and stops the car immediately starts

  • jason rosario Jan 10, 2013

    The pump runs for a while but soon as it shuts and stops the car immediately starts

  • jason rosario Jan 10, 2013

    Relays looked in tact tried aprayong starter fluid in the intake but dodnt start.but that was before i changed the fuel pump and filter so now im going to do a pressure test? And what elts you reccomend .? Please help me with your wisdom.i dunno what elta to do i got the manual but with my little experience , still need help troubke shooting .and basically poor

  •  Stephen
    Stephen Jan 10, 2013

    The pump should be running when the engine is running. Thats one thing that makes no sense to me as far as your story goes. Depending on the make model and year, you should have fuel pressure in the line before you do anything. Then when you turn the key on, the pump should run for 3 seconds to boost the pressure. Once you crank the engine and the oil pressure starts coming up, the fuel pump should start pumping and the engine should start. If you sprayed starting fluid into the intake and the engine did not try to start, are you sure you are getting spark to the plugs when you are cranking the engine ?

  •  Stephen
    Stephen Jan 10, 2013

    The fuel line should have 30 or 40 psi from when the engine ran the last time. Then as you crank the engine the pump should boost that pressure.

  • jason rosario Jan 10, 2013

    Tomorrow im going to check the fuelpreasure.and also the fuel pressure regulator its a 1997ford thunder bird. 6cln

  • jason rosario Jan 10, 2013

    Thats what i dont get the car eventually always starts but not intill the fuel pump shuts im looseing pressure. Somehow i dont know where or how Im by no means a machanic im just alittle mechanically inclined .thats why i need help

  • jason rosario Jan 10, 2013

    You dstill there???

  • jason rosario Jan 11, 2013

    Hey stephen buddy it comes down to this i did alot of trouble Shooting today with my causen,so we got plenty of pressure out of the fuel now where doin the constant control relay module witch is a pain in the *** to find so far at any auto part store and expensive .so im gona go used what do you think.the old pump that i replaced turned out to be ok so im just goin to leave it in anyway .what do you think about that being the issue???

  • jason rosario Jan 11, 2013

    Hey stephen buddy it comes down to this i did alot of trouble Shooting today with my causen,so we got plenty of pressure out of the fuel now where doin the constant control relay module witch is a pain in the *** to find so far at any auto part store and expensive .so im gona go used what do you think.the old pump that i replaced turned out to be ok so im just goin to leave it in anyway .what do you think about that being the issue???

  • jason rosario Jan 11, 2013

    Skychief what do you think about replaceing the constant control relay module

  •  Stephen
    Stephen Jan 11, 2013

    The module contains the relays for the fuel pump, cooling fan, and ac compressor. Yes it could be faulty. But you are saying the fuel line has pressure so that would mean the pump and the relay is working. You could get a used one and try it, but you also need to make sure you are getting power to the coil pack and spark to the plugs when the engine is cranking.

  •  Stephen
    Stephen Jan 11, 2013

    One thing that could be affecting the problem is the key switch.

  • jason rosario Jan 11, 2013

    I did the key ignition switch a few months ago and when the control moduels clixks the fan and pump stop working and the the car is then able to start

  • jason rosario Feb 03, 2013

    hey man i took a break on my 1997 ford thunder bird,cause i couldnt afford the insurence yet anyway lol,but wanted to ask you ,i wound up recplaceing the Ccrm (constant control relay modurle) and still haveing problems ,



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Posted on Jan 02, 2017

  • 431 Answers

SOURCE: fuel pump

Hi I am Vortash you do seem to be having a few problems with this one , and it does sound a little like the fuel pump and ther is an easy way to check you are getting adequate pressure from the pump .. without a pressure meter .. take a small balloon ( you know the type hard to blow small and can cause you to bust a blood vessel trying to inflate them ideal for this ) place it over the end of the fuel pipe and tape it on tight .. remove the lead from the ignition coil so the vehicle will not start .. crank the vehicle and watch the ballon if it starts to inflate then the Pressure is fine . now dont forget this ballon will now be full of gasoline when you remove it so dont break it and have a bowl or. bucket handy .. and when you take it off also remember there is going to be a good deal of pressure in it ?.
Ok so if the ballon inflated the pump is ok if id didnt insist the garage do a fuel pressure test .
I have a cousin who works for Ford here in the UK it is 2.40 am in the morning here now so I will ask him tomorow or later today lol as I have heard of a fault like this before and it was not the fuel system but i want to check with him first .. Regards Vortash

Posted on May 29, 2009

  • 2007 Answers

SOURCE: how can i fix a clogged fuel pump on a 2001 chevy

Have you changed the fuel filter? Did it die while driving, or just wouldn't start? Don't use starting fluid on a gas engine! It will cause a lot more problems than it solves. Ether, starting fluid is made for diesel engines... not gas, not ever. If it won't start, it isn't lacking ether. It's lacking gas, air or spark.

Posted on Jul 20, 2009

  • 491 Answers

SOURCE: fuel pump location 2001 pontiac grand am

The fuel pump is in the fuel tank.Sit in the car.....turn on the ignition switch to run.....listen very closely to the rear of the car...or have someone kneel down by the back should hear a "prime cycle"......the pump running for 2 or 3 seconds if the key was off for 15 seconds before trying this.If you hear silence you most likely need a fuel pump.Before pulling the tank down....check for power on the gray wire at the fuel tank connector just ahead of the rear axle under the car.Check for power with a test light that will last for 2 to 3 seconds as you turn on the key to run.Power means you really most likely need a pump.No power means you may need a fuse or a fuel pump relay.

Posted on Aug 11, 2009

  • 344 Answers

SOURCE: 93 volvo 850 glt changed the fuel pump now car

Check your fuel pressure to ensure proper pressure to the block, also did you replace the fuel filter.

On a side note: 3 things a automobile needs to run

AIR-make sure you have a clean air filter and your MAF (mass air flow sensor is plugged in) if you pulled your breather to innspect anything, there is a possibility that it came unplugged or you unpluged it and forgot to hook it back up, a car wont start without it being plugged in if equiped

SPARK-Make sure your car has juice to the plugs, if the plug doesnt fire the car wont run, if you have to pull each plug and ground them to the engine block to see if they arch. If not trace the problem down (if you changed the fuel pump you have some mechanical skill and should be able to troubleshoot a spark issue)

FUEL-Check for proper pressure, dirty fuel filter(s) and if your system has a return line, make sure your hoses didnt get crossed cause this will damage the engine and regulator.

Hope this helps Thanks for using

Posted on Jan 22, 2010

  • 1011 Answers

SOURCE: my car starts, but it wont stay running

idling jet carburette

Posted on Feb 16, 2010

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