Originally posted by mcfast: I had the same thing now for A few months. After a few test I think I found my problem. Test #1, Put in new spark plugs NGK IRIDUMS std gap 54 ran good for 3 weeks after that runing bad agan. Test #2, New spark plug wires, look at the plugs did not look good, gap to 40 ran good but I went ahead put in some new spark plugs MotorCraft AGSF32PPM thay do not make them any more I put in some replacement MotorCraft plug std gap 54, run good for a week after that runing bad agan. Test #3, So today I completely clean my IMRC and put in some new pulgs, AUTOLITE APP764 gap to 40 so far so good we will see in a couple weeks if she is still runing good I think I have a weak coil.
Day # 7 Still going strong. I will be going to a weekly update now. The only thing I can think of is when I wash the engine bay the water damage the coil pack some how? When I first got the car last year it ran strong at low RPMs That is the only thing I can see. I hope these post help some one. I have seen a lot of complains on these sites of similar problems.
