Question about 1986 Ford Econoline

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E150 idling issue

Hey guys I got a 1986 Ford e150..here is my problem...I get the vehicle to start and runs good til warms up then wants to stall in warm weather or idle high hen cold weather. put it any gear other than P or N and it runs good. except on warm days then it might want to stall. Any ideas ? my cat conv is old not sure if thats the prob or not. I get some white smoke out of tailpipe occasionaly. it smells not so good either..trying to give ya as much info as i can. any ideas?

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  • toddfarley Feb 27, 2009

    Sorry its a V8 302 Fuel Injection

  • toddfarley Feb 27, 2009

    ok sounds like maybe a little searching is on my list to do then. If i remember right there are a lot vacuum hoses on that motor..also that could be causing what feels like a leak with my brakes they will sometimes feel like they dont have power til i pump once or twice. ok thanks i will try that

  • Rob
    Rob May 11, 2010

    300 Cube inline 6?

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Most likely. the converter is clogged smash the inside out

Posted on Feb 17, 2013

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I'm not too familiar with an 86 302. Does it have essentially the throttle body unit to meter the gas? (looks like a computer controlled 2 bbl carb) or does it have some some funky intake system?

At any rate, check the tightness of the bolts where the throttle body unit attaches to the intake manifold. You may have to replace the gasket (if any) that resides betwixt these two pieces as well. Sound like a vacuum leak, so check the boss on the "back" of the motor where many vacuum lines are connected and make sure they are all firmly on their nipple and check the condition of the vacuum lines themselves to make sure they are not cracked or split.

good luck.

Posted on Feb 27, 2009

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