Question about 1990 Ford F150

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Truck starts, dies. truck runs good some days,bad the next

Truck starts , idle rough, starts again runs fine. some days it dies while running. have changed map sensor,oxygen sensor,relays,fuel pump,etc.

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  • Anonymous Mar 12, 2014

    I had the truck haul to service station 4 times and when they unloaded the truck it wounld start and run fine for four or five days and then you get in it.It might not start.

  • Anonymous Mar 14, 2014

    START BUT WONT STAY RUNNIN AND THEN IT WILL DIE AN WONT START TILL THE NEXT DAY CHANGE O2 SENSOR 0N DRIVER SIDE AN CHECK THE THROTTLE SENSOR LOOKS GOOD

  • Anonymous Mar 15, 2014

    wont start put 2 new fuel pump took out oxygen sensor

  • Anonymous Mar 17, 2014

    ENGINE STARTS AND DIES.does not idle.replaced fuel pump

  • Anonymous Mar 18, 2014

    New fuel pump and new oxygen sensors

  • Anonymous Mar 19, 2014

    The truck dies intermittently when it worms up, Replaced full pump and oxygen sensor 2002 F 250

  • Anonymous Mar 19, 2014

    starts and runs rough then dies out. also is getting to much gas. what would cause this problem

  • Anonymous Mar 26, 2014

    Problem first started with miner jumping stopping at light. Had spark plugs changed and 2 bad coils changed out. Truck now runs loud sound and still has ticking sound idle and driving.

  • Anonymous Mar 27, 2014

    truck runs then dies

  • Anonymous Mar 29, 2014

    truck starts but run rough then shut off want start back for 10 minutes

  • Anonymous Mar 29, 2014

    Truck just died. Cranks but no start. Changed fuel pump in gas tank still won't start.

  • Anonymous Mar 30, 2014

    my 2006 Toyota corolla is acting weird it starts for about ten to fifteen seconds and then it dies and it will run fine for a day and then it will start acting this way again does anyone know what could be the solution to this problem

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I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!

Posted on Oct 06, 2008

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I've had as similar problem with my '90 f150 5.0l, i would clean out the IAV(idle air valve) on the side of the throtlebody with some carb cleaner. If that doesn't work you might have to repalce the whole IAV assembly.

Posted on Oct 27, 2008

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