Ive been working on my truck from the second i got it, about two months ago my check engine light went on, and i could tell that somthing was wrong with the engine cause it was idleing horribly. So i replaced the spark plugs and it ran perfectly for about two weeks, then the check engine light went on again, and the idle was a LITTLE rough, so i popped the hood and checked the plugs and everything, and one of them wasnt hitting well, i dont know what it was but i could feel the ignition from the top of the plug(im sure thats not good), so i replace the spark wires, and now the check engine light is on and it is idleing bad, any ideas?

b.t.w. 1997 F-150 extended cab 4.6litre

http://www.cardomain.com/memberpage/602389

 

Respectfuuly, your trying to take a simplelistic view of your problem.
Get the codes scanned and see what the faults are and go after them, instead of trying this and that.
That's why your not getting anywhere.

 

Yeah you should get the codes read...Autozone does it for free.

Once youve got them, run a search on the codes, and if you cant get enough info from that, start a new thread.