Question about 2000 Ford Taurus

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99 Taurus wont start unless primed. Fuel pump is working

I let this car sit for 2 months went to start it and it wont start. The car has the Duratech V-6 motor in it. When I spray gas directly into the intake the car will start and run as long as I keep spraying the gas directly into the intake. I hear the fuel pump run when I turn the ignition on, and the fuel rail gets plenty of gas and even seems to have enough fuel pressure, but the car will not start or run without gas being manually sprayed directly into the intake. Is the fuel pump weak? Is the fuel pressure regulator bad? The car never started totally properly. Even when it started a few months ago I had to feather the gas pedal to get it to start if the car sat for a week or more. Now it wont start at all on its own.

Posted by my_68_hardch on

  • my_68_hardch Mar 09, 2009

    The car had no gas in it while sitting. The tank was completely clean and dry while sitting. I put fresh new gas in the car then tried to start the car. The car will not start without squirting gas directly into the intake. The car will not get gas to the cylinders at all on its own. There has to be a problem with the in-tank fuel pump, or the fuel pressure regulator or the injectors. I personally am leaning toward a bad fuel pump because when the car was starting two months earlier I had to pump the throttle as I turned the engine over. I think the pump was weakening then and after sitting for 2 months I think the fuel pump is too weak to build the necessary pressure to fire the car up. Can anyone tell me if having to pump the throttle while turning the car over to get the car to start is a sign of a weakening in-tank fuel pump?



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Jack Iaria

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Check/Change Fuel Filter(s), PVC Valve & Emission Hoses
Gas that sits too long won't fire easily that's why we have to add winterize to our lawn mowers!
Try filling the tank with some high grade fuel cleaner additive. This stuff is like rocket fuel (about $10).
Also add a can of dry gas as you may have a lot of water and water vapor in your system!
Get a couple more cans of starter fluid too. (I always needed at least two to get my diesel running for summer)
Keep spraying and starting (It always took me at least a full can sometimes 2)
When it starts keep the gas pedal down and rev high for a good 5-10 minutes then see if it will idle.
If it still stumbles and falls consider adding another can of fuel system cleaner and/or dry gas.
Don't drain the tank as this usually just makes it worse by letting the bottom sludge stir up.
Never let your gas tank get too low as this will foul up your fuel system and always add fuel cleaner after every oil change (a must for fuel injection and cat. converter care)

Good Luck!
99 Taurus wont start unless primed. Fuel pump is w - 59d1ab2.jpg jack

Posted on Mar 08, 2009

  • Jack Iaria
    Jack Iaria Mar 09, 2009

    Since it appears someone drained the tank completely before storing, your in trouble.

    The inside of a tank gets a lot of gunk on the bottom, just below the gas intake and when it's drained then refilled this stirs it all up and it enters the fuel system causing clogs everywhere.

    You'll have to start replacing parts starting with the fuel filters, pcv valve, air filter, and the FUEL PUMP but first I'd try draining the tank again to about 1/8 full then adding a couple of cans of fuel system cleaner because this may dissolve the gunk that is jamming up the delivery system.

    Hoping you don't have to spend too much time and money just to get a stored vehicle started!




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