Ignition problem.....I think!
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Elder User
Joined: Jun 2002
Posts: 812
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From: Woodbridge NJ
Ignition problem.....I think!
Ignition problem.....I think!
What's up guys?
I need alittle help here..... My tuck is acting alittle funny again. It's been running great for months with the NEW Ford motorsport mass air conversion kit. But yesterday I took her out for a 15 min. drive and parked it for approx. 30 minutes and when I went to start her it just wouldn't ignite. I turned it over and over and finally she fired up. It idled fine then stalled. I did that five times in a row. It almost felt like someone was under my hood and pulled my ignition coil off while it was running . It would idle nice and smooth at 800 rpm's then just cut out. The engine didn't bog or chug. It was just like someone turned the key off.
I hope I'm making sense here. Any suggestions guys......ignition coil, ign module, computer, bad ground?
Any suggestions would be very appreciated.
Jerry D.
What's up guys?
I need alittle help here..... My tuck is acting alittle funny again. It's been running great for months with the NEW Ford motorsport mass air conversion kit. But yesterday I took her out for a 15 min. drive and parked it for approx. 30 minutes and when I went to start her it just wouldn't ignite. I turned it over and over and finally she fired up. It idled fine then stalled. I did that five times in a row. It almost felt like someone was under my hood and pulled my ignition coil off while it was running . It would idle nice and smooth at 800 rpm's then just cut out. The engine didn't bog or chug. It was just like someone turned the key off.
I hope I'm making sense here. Any suggestions guys......ignition coil, ign module, computer, bad ground?
Any suggestions would be very appreciated.
Jerry D.
Posting Guru
Joined: Jul 2003
Posts: 2,232
Likes: 1
From: Colville, Washington
I would suspect the ign. module first, they can fail under heat and resume operation after cooling down. The dist. mounted TFI is prone to that, so ante up for a good name brand unit, it'll be worth it in the long run!!
Putt
Senior User
Joined: Sep 2001
Posts: 291
Likes: 1
From: Central Texas
like the man said, ante up and replace the ignition module. I would also replace the coil, and the "donut" in the distributor. I am assuming the parts are all the same age, so do a little preventative maintenance ro you will be there again with a similiar problem. Cost on the parts is not that bad. One other note, you will have to pull the distributor to remove
the "donut" . Not a big deal but you will have to go through the timing procedure after reinstalling the distributor.
jus my $.02
the "donut" . Not a big deal but you will have to go through the timing procedure after reinstalling the distributor.
jus my $.02
Lead Driver
Joined: Feb 2000
Posts: 5,373
Likes: 46
From: Palm Bay, Florida
I'm having the same type problem with my '94 F150 5.0, exactly what is the doughnut in the distributor?
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Junior User
Joined: May 2003
Posts: 90
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From: Kapaa, Hawaii
did it do that before the MAF upgrade ? If it is acting up, the MAF will cut it off. especially if there is no/ poor connection present.
I'm not sure on the ford one, but the Gm ones we work with kills it. Almost like pulling the fuel pump relay. it works on a heating element and the incoming cool air keeps it at a certain temp. which is converted to voltage then sent to the PCM/CPU to adjust fuel mixture. sounds funny that it acts up and not steady all the time. but then again, anything is possible ....... $.02
I'm not sure on the ford one, but the Gm ones we work with kills it. Almost like pulling the fuel pump relay. it works on a heating element and the incoming cool air keeps it at a certain temp. which is converted to voltage then sent to the PCM/CPU to adjust fuel mixture. sounds funny that it acts up and not steady all the time. but then again, anything is possible ....... $.02
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Thread Starter
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Elder User
Joined: Jun 2002
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From: Woodbridge NJ
I finally got around to changing the TFI module. I couldn't get a hold of a Ford TFI so I went to the local auto parts store and bought a WELLS TFI module. (Part# F121)
Has anyone used products from this company before? This is a first for me.
Anyway, I think this did the trick!
So far so good.........
Thanks for all the help guys.
Jerry D
Has anyone used products from this company before? This is a first for me.
Anyway, I think this did the trick!
So far so good.........
Thanks for all the help guys.
Jerry D
New User
Joined: Jul 2004
Posts: 10
Likes: 0
From: Liberty, Texas
I have the same problem with my 91 F150. I replaced the TFI, but that didn't help. Wells TFI is OK (have used them on my E150 van). Stay away from their fuel pump and ECM relays, though. Went through 4 new ones and never got one that worked. Broke one open and it was rusted ( a brand new relay)!
Hoyt
Hoyt
