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 #3 My car never ran so good.
The funny thing is when I first got this car about a year ago it run great at low RPMs it did not bucking,surging,backfire,hesitation at low RPM and medium to hight loads. But it did have a mis at hight RPM in 3,4,5.
That one was easy to fin it was old pulgs.
When I remove them thay look worn out (Champions). The gap was realy wide that is why it run bad. With new pulgs at std gap it run good for about 3 weeks that is when the hoe story started. Its been run bad for the last 8 months until now. The only thing I can see is I wash the engine bay.
Maybe it damage the ignition coils maybe thats why I have to run a smaller gap (40). That is pretty will the hole story.
For now she is runing great. Maybe one day I will try a new coil pack.
P.S. Sorry for spelling and rest it is the best I can do.
Its takeing me over 1 1/2 hour to wright this.
Last edited by mcfast; 10/16/04 11:34 PM.
