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Thread: Ford ignition feedback please

  1. #1

    Ford ignition feedback please

    Guys, I need some feedback re the reliability of Ford ignition components in the CMC world. All of you CMC Ford guys are out there with bone stock distributors, ignition models, coils, etc...so...how long do these components las? What fails more? What have you spent on ignition parts in the last X years?

    Please exclude wires and plugs.

    Thanks
    Al Fernandez

  2. #2
    On a Fox ignition setup, the weak link is the TFI module. If there's anything that I suspect more, it has to be this module that is attached to the side of the distributor. On the 94-95 models, they moved the ignition module off the distributor and put it on the fenderwell. Heat.. or lack of cooling killed it, especially the cheap non-Motorcraft ones. The TFI module has left me stranded in some really bad spots over the past two decades. I always kept the tool and spare in my emergency "kit".

    Other than that, everything else is pretty solid and reliable. In the past 20 years owning daily drivers, drag cars and the 'ol #17, I've never had to replace a coil or distributor (cap, rotor, wires..excluded). Even running MSD 6AL or BTM, had no issues with the stock stuff.

    This article says it all regarding the TFI (Thick Film Ignition) module.
    http://www.autosafety.org/ford-tfi-m...ass-settlement

    "During the 1980's, NHTSA conducted five investigations into stalling in Ford vehicles. During those investigations, Ford withheld documents from NHTSA that would have shown a common cause of stalling -- failure of the Thick Film Ignition (TFI) module mounted on the distributor when its temperature rises above 125 C and cuts out, causing the vehicle to stall on the highway. There are over 10 million vehicles still on American roads today that suffer from the same readily-correctable design defect that can cause the engine to stop abruptly and unexpectedly, at any time and at any speed, leaving the driver without power-assisted steering or brakes and the vehicle disabled. Vehicles with the distributor mounted TFI module have a 9% higher fatal crash rate than those with a different module system."
    2004 Camaro Mustang Challenge Champion
    2005 Camaro Mustang Challenge Champion

  3. #3
    Senior Member Rookie chris-CMC#35's Avatar
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    Quote Originally Posted by evarner
    On the 94-95 models, they moved the ignition module off the distributor and put it on the fenderwell.
    I always wondered why it was over there...now I know.


    thanks
    chris

  4. #4
    Senior Member Carroll Shelby Rob Liebbe's Avatar
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    100% Agreement with Eric. I keep a coil and a TFI module and the TFI specific socket in my kit. At least I think the TFI module is in there - better check. However, I have never had a failure on the race car. I had a Ranger truck that failed a module once. The limit seems to be about 80,000 miles and they go out.
    Rob Liebbe - Texas Region
    Camaro, Mustang, doesn't matter to me, I'll race it.

  5. #5
    Senior Member Carroll Shelby
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    Quote Originally Posted by Rob Liebbe
    100% Agreement with Eric. I keep a coil and a TFI module and the TFI specific socket in my kit. At least I think the TFI module is in there - better check. However, I have never had a failure on the race car. I had a Ranger truck that failed a module once. The limit seems to be about 80,000 miles and they go out.
    same here on my '86 V-6 Ranger... but never on 5.0 Mustangs

  6. #6
    Senior Member Carroll Shelby GlennCMC70's Avatar
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    so Ford guys, whats the cost of those two parts?

  7. #7
    Quote Originally Posted by GlennCMC70
    so Ford guys, whats the cost of those two parts?
    Wide range depending on manufacturer.

    Accel Performance $68
    Motorcraft $153
    Niehoff $46-128
    Duralast $42

    Tool ~$10



    Wish Ford had moved them here (see below) on the Mustangs. This one is on an '88 Cougar with the aluminum heat sink.
    2004 Camaro Mustang Challenge Champion
    2005 Camaro Mustang Challenge Champion

  8. #8
    Any reason why you cant run the 94-95 setup on the earlier 5.0s? The rules allow you to due to update/backdate.
    Al Fernandez

  9. #9
    Senior Member Carroll Shelby
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    Quote Originally Posted by evarner
    Vehicles with the distributor mounted TFI module have a 9% higher fatal crash rate than those with a different module system." [/i]

    WOW...

  10. #10
    Senior Member Carroll Shelby ShadowBolt's Avatar
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    Quote Originally Posted by evarner
    Quote Originally Posted by GlennCMC70
    so Ford guys, whats the cost of those two parts?
    Wide range depending on manufacturer.

    Accel Performance $68
    Motorcraft $153
    Niehoff $46-128
    Duralast $42

    Tool ~$10



    Wish Ford had moved them here (see below) on the Mustangs. This one is on an '88 Cougar with the aluminum heat sink.
    I have some off brand I paid $35.00 or $45.00 for on CMC17 when the engine started running bad at ECR. I installed a cap, rotor and Michael's spare dist. and it still would not run right. I changed the coil and that fixed it. I did put the off brand module on after returning Michael's dist. Even the Accel unit is a POS? You think I should re-install the old Motorcraft unit?

    JJ

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