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

  1. #11
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    This company sells TFI relocation kits.

    http://www.mccullyracingmotors.com/i...es/tfikits.htm

  2. #12
    Peekaboo, I see you! True Blue'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.
    Do these have Motorcraft written cross the module like the original?

  3. #13
    Club Supporter Mustang4's Avatar
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    I've had two TFI's fail in the last 3 year, Motorcraft ones. Now thanks to ZR, the Fatfoxx relocation kit was installed at the end of the fall.
    This spring we're hoping that fixes everything. Last 2 drives before it went away were good.

    1991 Mustang 5.0L LX - Titanium Frost CC Metallic, MM Suspension, Bilstein shocks, Cobra brakes, Edelbrock heads, polished GT-40 intake, new interior
    2018 Mustang GT - Performance Pack, Magneride, Auto, Forged wheels, Active exhaust, Lightning Blue

  4. #14
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    Quote Originally Posted by Mustang4 View Post
    I've had two TFI's fail in the last 3 year, Motorcraft ones. Now thanks to ZR, the Fatfoxx relocation kit was installed at the end of the fall.
    This spring we're hoping that fixes everything. Last 2 drives before it went away were good.
    Did you buy those 2 Motorcraft TFI's at a Ford dealer or online?
    I've read of people buying Motorcraft TFI's online and they were junk.
    They came in a Motorcraft box but the module was probably not genuine Motorcraft.

    Maybe the quality has gone down even with the dealer ones.
    Who knows.
    I still have the original TFI with about 207km.

  5. #15
    Club Supporter fast Ed's Avatar
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    Quote Originally Posted by True Blue View Post
    Do these have Motorcraft written cross the module like the original?
    Will let you know on Thursday when one ordered arrives. Several people are saying they've got the newer number and they are not marked as Motorcraft on the module.

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  6. #16
    Club Supporter Mustang4's Avatar
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    Quote Originally Posted by LX89 View Post
    Did you buy those 2 Motorcraft TFI's at a Ford dealer or online?
    I've read of people buying Motorcraft TFI's online and they were junk.
    They came in a Motorcraft box but the module was probably not genuine Motorcraft.

    Maybe the quality has gone down even with the dealer ones.
    Who knows.
    I still have the original TFI with about 207km.
    I think one came from Rock Auto and one from LMR, both said Motorcraft, Part #DY 1284. And reviewing my timeline, it was 2 of them over the last 6 years not 3 years.

    1991 Mustang 5.0L LX - Titanium Frost CC Metallic, MM Suspension, Bilstein shocks, Cobra brakes, Edelbrock heads, polished GT-40 intake, new interior
    2018 Mustang GT - Performance Pack, Magneride, Auto, Forged wheels, Active exhaust, Lightning Blue

  7. #17
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    If my TFI dies,I'll only buy one from a Ford dealer.
    Hopefully less chance of getting a dud.

  8. #18
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    Quote Originally Posted by RedSN View Post
    Same deal for 94-95? Or are the jelly beans SOL?
    Pretty sure Ford relocated the TFI off the distributor for 94-95.

  9. #19
    Club Supporter Mustang4's Avatar
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    Quote Originally Posted by LX89 View Post
    If my TFI dies,I'll only buy one from a Ford dealer.
    Hopefully less chance of getting a dud.
    I will likely order a back up from Ed at Parkway Ford.
    Though I hope with the relocate to the fender, I'll never to have to worry about it again.

    1991 Mustang 5.0L LX - Titanium Frost CC Metallic, MM Suspension, Bilstein shocks, Cobra brakes, Edelbrock heads, polished GT-40 intake, new interior
    2018 Mustang GT - Performance Pack, Magneride, Auto, Forged wheels, Active exhaust, Lightning Blue

  10. #20
    Peekaboo, I see you! True Blue's Avatar
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    Another important factor is not to use dielectric compound which some recommend, instead use thermal compound paste for improve heat transfer. Get a quality paste like Arctic Silver 5.
    After doing much reading regarding the TFI module, last summer I removed the original module cleaned everything up and applied the thermal paste. Hopefully this will make a difference.

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