Question about 1999 Ford Ranger SuperCab

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Engine runs rough at certain speeds 3.0 v6 flex-fuel 1999 ranger

Engine had code p1400 replaced dmpfe sensor, check engine light went out but engine runs rough at speeds like 45mph and 55 mph, at higher speeds engine seems to run fine, and at idle speed engine is rough, any help appreciated. Thanks

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  • Anonymous Mar 17, 2014

    Engine seems to run fine even at idle but the code still comes up but "check engine light does not or has not come on.

  • Anonymous Mar 17, 2014

    Rough idle wants to die works fine at higher speed

  • Anonymous Mar 17, 2014

    Engine idles rough and wants to die when at higher speeds it runs fine

  • Anonymous Mar 20, 2014

    replaced distributor and other things and still will not run

  • Anonymous Mar 20, 2014

    Egine light comes on when damp out and higher temps outside. Engine runs very rough.

  • Anonymous Mar 20, 2014

    Engine light comes on when damp out. Engine runs really rough lack of power excess fuel usage

  • Anonymous Mar 27, 2014

    engine runs rough

  • Anonymous Mar 28, 2014

    In my 95 aero, the engine check and TCA are on and idle speed goes up to 1000 rpm, does not idle properly and the engineer tells me there is no error codes registered and that I have to change the throtle sensors

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Check and see if the EGR valve is leaking, to check this spray water on it at idle, if the water steams off the valve is leaking and is the source of your problem, also are you sure you hooked the new DPFE sensor up right? re-check it..

Posted on Nov 23, 2008

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I replace timing belt now it run pretty rough

Posted on Jun 04, 2013

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