i was driving down the road and my truck started missing so i just replaced all the wires and plugs and its still running bad and throwing the code for random / multiple misfire but when i look when its dark outside i can see at least 3 of them arcing on the side of the motor any suggestions on what i could do????????? ok so now i really dont know what is wrong i started looking closer and can see almost all the spark plugs are doing it. and also i seen some arcing around the ignition coil cant really see where its coming from but it almost looks like it is the coil arcing on something.

 

What kind of plugs and wires did you buy? If the boots on the wire are seated properly on the spark plugs there should be no arching.

 

Bad plugs, you cracked 'em on installation, or you haven't got the boots seated.

Allan

 

bought ac delco plugs and i dont remember what brand of wires that i bought but the guy at the auto parts store said they were the ones he would recommend. i thought that maybe i could have cracked one of the plugs so i bought a new one and put it in its place and still the same thing. i also thought maybe a bad wire so i tried a couple of the old wires and still the same thing i know the wires are seating they cant go on any further. so im still at a loss any more suggestions would be very helpful cause i am still at a loss.

 

what brand and kind of plugs and wires would you recommend? maybe the guy at the auto parts just screwed me.

 

Is it always the same 3 that are arching? If so try changing some of the wires around to see if the problems goes to the other plug.