So my truck has had a varying misfire, it wasnt bad but i could feel a small type bump while driving. Dude I got it from did tell me in advance it would need a coil as to his inability to afford one. He put new plugs and wires in shortly before I got the truck ( 2 weeks). Now I have replaced the coil and it was cool for about 1 hour, back to same old thing.

My question is, could the new plug/plugs fouled from the misfire of the old coil before I replaced it. I had to drive it for a couple days before I could change the coil..

I am kinda at a loss here. Any help would be awesome..

Thanks in advance

 

????????? any one

 

take the plugs out and make sure they are new and make sure they are gaped to the right size

 

did that, all is well. It was my MAF sensor. cleaned it and all is well. ( For now)

 

Did it throw a CEL? If so what code?

Rich

 

well ****, i cleaned the maf and it was good for about 30 min, now doing it again.. No CEL are coming on.... I may have to take it in the *** and pay a mechanic to figure it out...

 

check the oil. I've found that mine will pop and miss slightly when i am low in oil. Altough i burn ALOT, but i would check

 

Hum... sometimes a loose plug will do what you describe. Might want to check to see if they are all tight. (12ft lbs)

Rich

 

ok so i pulled the plugs, not only were they ****, they were not gapped, so i put in new ones with the proper gapp, and now the truck is idling perfect, but when i drive it hard it feels like abooged down 2 cycle dirt bike, my mechanic said i would need to drive it for 20 - 30 minutes to burn off all the build up, the cel light popped on , which he said would go off once the **** burned off .. ???

Hope this resolves this..