Question about 1996 Jeep Grand Cherokee

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Well its saying missing all cylinders complete tune up has been done plugs,wires , tps sensor coils distributer and rotor button ,codes have been reset and still runs rugh and got seems to be gd power nt over heating nt smokeing starts easy , no ecessive gas being used .. what more can i do ,,, pls help has 210,000 miles its my babby

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  • Jeep Master
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P0300 can be caused by crank sensor or possibly EGR valve stuck open. http://www.fixya.com/cars/r6715318-causes_gasoline_engine_misfires for additional ideas and let me know if you have questions.

Posted on May 24, 2011

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Its like its missing,no power.maybe one cyl not working prop


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What parts do i need to do a tune-up mechanic says i have codes that read misfire on number 1 and mass air flow


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My engine light is on and the code machine is saying multiple miss fire, and i have just had a recent tune up.


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