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    why 1987 ranger missfires after engine warm up?

    0  Views: 695 Answers: 1 Posted: 12 years ago

    1 Answer

    You need to have a diagnostic done on the truck and get the error codes.  I found a few reasons so far as to why this happened to other trucks. 


    Bad MAF sensor > http://www.ford-trucks.com/forums/475673-94-ranger-3-0-w-manual-bad-misfire-after-warmup.html 


    Firing order not correct > http://www.fordrangerforum.com/4-cylinder-tech/97017-misfire-when-engine-warms-up.html 


    Bad coil > http://answers.yahoo.com/question/index?qid=20120223161911AAqiQTv 


    And then this discussion mentioning other things it could be http://www.fordforums.com/f653/1987-ford-ranger-2-9l-sporadic-engine-mis-firing-idles-ruff-then-ok-125758/ 


     


    Without engine codes to go by, it is difficult to say what is causing the misfires. 



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