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Thread: TFI heat soak - how to tell if thats my issue?

  1. #1
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    TFI heat soak - how to tell if thats my issue?

    So, I may have the the TFI heat soak issue, not entirely sure yet. But after my mustang (1990GT) heats up.. it'll just shut itself off mid driving, once when i was hitting the on ramp to the 401..! After the car cools down for a bit, it'll start right up again. This last time though, I noticed a burned plug wire (cyl.#1) and now its making funny noises from the passenger side valve cover. So the car hasnt moved from the garage since july.

    Now Im thinking its the TFI heat soak issue and think Im gonna buy a kit to relocate it somewhere...anyone try this or have had the same issues? I found the FatFoxx kit...pretty pricey, but if it works, may be worth it.

    http://fatfoxx.com/products.php

    Anyone know of any other kits available?

  2. #2
    Member WidowrRacing's Avatar
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    I can’t say I’ve ever had this issue....my 88GT has the stock distributor still and the TFI let me down once a very long time ago. I replaced it with a motorcraft replacement and no issues since.

  3. #3
    Admin ZR's Avatar
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    If engine stalls the restarts, TFI is pooched, relocating will not bring it back to life but yes may make replacement last longer.

  4. #4
    Member USAWIT2's Avatar
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    Quote Originally Posted by 90GT View Post
    So, I may have the the TFI heat soak issue, not entirely sure yet. But after my mustang (1990GT) heats up.. it'll just shut itself off mid driving, once when i was hitting the on ramp to the 401..! After the car cools down for a bit, it'll start right up again. This last time though, I noticed a burned plug wire (cyl.#1) and now its making funny noises from the passenger side valve cover. So the car hasnt moved from the garage since july.

    Now Im thinking its the TFI heat soak issue and think Im gonna buy a kit to relocate it somewhere...anyone try this or have had the same issues? I found the FatFoxx kit...pretty pricey, but if it works, may be worth it.

    http://fatfoxx.com/products.php

    Anyone know of any other kits available?
    I had this issue on my old notch, car started randomly stalling, I used the fatfoxx kit and relocated the tfi to the passenger side inner fender, had no issues after that.

    Sorry don't know of any other kits available

    -Usawit2

  5. #5
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    I travel with an known good TFI and a change kit. I've been stranded once, had two failures. Mine never fired up after cooling down, deader than dead. Changing is a 10 minute job. I also travel with a spare serpentine.

    edit:

    Simple test is to jump the starter solenoid and pull a plug or coil wire. Turn the engine over and ground the wire. No spark, TFI pooched. Easier at night.

    I got all my TFI's by going to a large yard and harvesting every unit in the yard. Did this a couple of times and then spent an hour swapping them in/out to prove goodness. I'm not sure they're so available any more, but I've got enough for a few more failures.

    Some pick up's have a remote TFI mount with heat synch. There's threads on CC, and probably Corral about converting to remote. I think you use the fried one and fashion a plug out of it. I haven't done it yet (lazy)

  6. #6
    Admin ZR's Avatar
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    We keep a known to be good TFI module for testing purposes only.

  7. #7
    Club Sponsor Parkway Ford Lincoln SVT's Avatar
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    For reference, a Motorcraft replacement module is still available to order from Ford. Club pricing is around $135 + HST.
    Parkway Ford Lincoln SVT - Waterloo
    www.parkwayford.ca
    toll free lines:
    sales dept 866-980-6752
    service dept 888-785-4008
    parts direct 844-339-0452
    we're on Instagram: parkwayford

  8. #8
    Member FoxRod's Avatar
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    Never had the issue in the 30 yrs I've had it ,but a good reminder thread...and thanks Ed!

    Quote Originally Posted by Parkway Ford Lincoln SVT View Post
    For reference, a Motorcraft replacement module is still available to order from Ford. Club pricing is around $135 + HST.

  9. #9
    Member Titanium90's Avatar
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    Quote Originally Posted by Parkway Ford Lincoln SVT View Post
    For reference, a Motorcraft replacement module is still available to order from Ford. Club pricing is around $135 + HST.
    Hi there,

    Is that a genuine motorcraft part? If so, how do I order one?

    Thanks,

    Benny

  10. #10
    Club Sponsor Parkway Ford Lincoln SVT's Avatar
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    That will be a Motorcraft part from the Ford warehouse. The part number has changed from the original, so it may be from a different vendor but it would still meet OEM specs of course.

    You can send a private message, or call the parts toll free line 844-339-0452 and ask for Ed. We can get one ordered, and ship it to you by Loomis courier for a $10 charge, just need a credit card number and your address. If you're not in a hurry for one we would add it to our weekly stock order.


    thanks
    Parkway Ford Lincoln SVT - Waterloo
    www.parkwayford.ca
    toll free lines:
    sales dept 866-980-6752
    service dept 888-785-4008
    parts direct 844-339-0452
    we're on Instagram: parkwayford

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