I HAVE 2003 DODGE RAM 4.7 HAS A BAD MISFIRE CODE CAME UP P0300 MULTIPLE CYL MISFIRE AND MY CONVERTER WAS CLOGED
I STARTED MY TRUCK IN THE MOURNING AFTER A SNOW STORM LOT OF SNOW WAS BUILT UP IN AROUND THE ENGINE AND THE BELT WAS SLIPING BAD UNTIL IT DRIED OUT THEN SHE STARTED MISSING TRIED DRIVING AND FOUND SHE HAD NO POWER HAD IT CHECKED OUT AND THIER WERE NO ENGINE CODES BUT THE CONVERTER WAS CLOGED. AFTER I REPLACED IT IT SET ENGINE CODE P0300 MULTIPLE CYL MISFIRE. HAS ANY BODY RAN ACROSS THIS BEFORE?
did you pull one of the coils out to see if the snow melted and there is water the plug tubes they are know for getting water in them and staying wet you may have to remove them all and dry them off and replace the plugs
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