i have a number 2 cylinder misfire, the check engine light flashes constantly. The truck doesnt seem to be running any rougher, but when i take out the number 2 plug it looks brand new and has a decent amount of gas on it. ive tried swapping the coils, checked for spark, changed the fuel injector, spark plugs, and wires. the plugs are all motorcraft. Also the cats are hallowed out.
actually it ran pretty much the same before and after the cats were hallowed out, but that may be because the exhaust manifold was cracked at that time. It has always had the check engine light on solid, until it decided to flash all the time recently.
I forgot to mention when i unplug the injector it sounds like it backfires into the intake. only on the number 2 cylinder though.
Ill see if i can get the guy i work with to bring over his compression tester.
Last edited by billybad05; 08-23-2009 at 11:51 PM.
do i really need all four cats or just the first two? Because if i fix this problem i might go ahead and put some cats on it. i already replaced so much on this truck it would be a waste to just blow it up. lol
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