:ugh:Hi everybody..I'm reading a P0300 code and in the service manual it says multiple misfires..I have an '04 KC and its been idling rough and the SES light stays on until I come to a stop where the truck starts idling even rougher and the SES light starts to blink...well I got it home and after a couple hours, I tried to start it and it barely gave a crank...not even starting..Could this be related and what do I need to look at, cuz I don't have much dough for any dealership..
Have you cleaned your throttle body and MAF? Do that and do the TPS relearn procedure. Fixed rough idle for my daughter's Rogue and my Titan. Misfire code 0300 is random misfire, not cylinder specific, and that could be from running overly rich at idle.
My 04 titan never had a code, had my valve cover gaskets replaced, new rubber boots put on over the extended part of spark plugs tubes on bottom of valve cover, and my crankshaft sensor replaced because it was leaking. Now, I have cylinder 7 misfire and that p0300 code...any ideas?? My email is william.h.johnson352@gmail.com
2010 Armada Platinum. Ran beautifully then starter changed and now this P0300 BS. New FP, plugs, injectors tested and cleaned. New plenum gasket set. Could the plenum be causing this? The underside of #8 injector looks like it’s crumbling. Not past the o-ring though.
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