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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Well,I drove to Montreal yesterday, to see some friends and a used 2001 Mustang SVT,its about a 400 miles trip in all. Did a few high speed test and the car runs great! Wail I was there I look up a old friend of mine that I once work for, he has a ultralite aircraft egine rebuild service. We where just sitting around shooting the sh!t about aircraft and engines, I was telling him about the problems I been having with my car, that I had to close the gap on my spark pulgs to make it run right. He said thats funny he's been having problems, to with he's aircraft engines, that have a high level of alcool in the gas up to 18%, they vibrate and run bad and to fix the problem he close the gap on the spark plugs, after that they run good. I was just wondering if that could be one of are problems?
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Will after a week and 500 miles my car never, I say NEVER! Ran better.I love this car.
SVT 99 #526 of 2760
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Joined: Aug 2002
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New CEG\'er
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New CEG\'er
Joined: Aug 2002
Posts: 44 |
My Mystique with 76K miles has the same problem.
I have yet to find a solution.
I do, however, have a question.
Won't significant engine misfiring result in a CEL?
To me, this eliminates the ignition system as the source of the problem.
Early flooding problems with the car seven years ago and subsequent misfires would always trigger a CEL. The light would clear by itself after a day or two.
Comments?
1998 Mystique LS
2.5l Duratec
Willow Frost
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
Originally posted by DFT: My Mystique with 76K miles has the same problem.
I have yet to find a solution.
I do, however, have a question.
Won't significant engine misfiring result in a CEL?
To me, this eliminates the ignition system as the source of the problem.
Early flooding problems with the car seven years ago and subsequent misfires would always trigger a CEL. The light would clear by itself after a day or two.
Comments?
I would get a CEL if I held it for a long time (hight load low RPM and missing). After I drove it (normal) for a while it would go away. If I drove it (normal) I would not get a CEL even if it was missing for a short time in each gear.
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Week two, still running strong!
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Week 3, still runing great! Close call last night, ball jount fall off, holy sh*t!
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Week 4 still runing very good!
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Week 5, still runing very strong!
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Week 6 still runing perfect!
SVT 99 #526 of 2760
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Joined: Dec 2003
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2003
Posts: 300 |
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.
Week 7,never ran better specialy after installing a new air intake system and a short shifter.
SVT 99 #526 of 2760
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