Symptoms of a bad igniter?

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  1. #1

    Symptoms of a bad igniter?

    I've been wondering what's causing my '86 to misfire and fall on it's face at idle as well as the horrible acceleration. Couldn't help but notice there's a new ticking sound coming from the coil/igniter as well, really hoping that's not what's failing because I've heard of the dreadful search it can be to find another, any advice/help would be awesome, thanks guys

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    CelicaSupra.com Member supkar's Avatar
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    Try ebay and this site for a used one. I keep a backup ignitor in my rear cargo.
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    CelicaSupra.com Member Khlause's Avatar
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    Quote Originally Posted by TakamineGB400 View Post
    I've been wondering what's causing my '86 to misfire and fall on it's face at idle as well as the horrible acceleration. Couldn't help but notice there's a new ticking sound coming from the coil/igniter as well, really hoping that's not what's failing because I've heard of the dreadful search it can be to find another, any advice/help would be awesome, thanks guys
    Check the coil wire that goes to the distributor, also make sure the coil it self is well grounded. If you're hearing noises that sounds like high voltage leak, this is common on failed wires.

    Poor grounding can mimic failure also.

    What you're describing does sound like a failed coil or coil wire, but check all possible connections and go from that point forward.

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    CelicaSupra.com Member supraz's Avatar
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    Don't forget that there are diagnostic codes that can be read that may give an indication that the Igniter has failed/is failing.

    http://www.cygnusx1.net/Supra/Librar...aspx?S=FI&P=22
    How to read the Codes

    http://www.cygnusx1.net/Supra/Librar...aspx?S=FI&P=25
    Code Table

    If the Igniter is starting to fail, it is probably going to intermittently flag code 14.

    It' just too easy to forget that this function is available to you.
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  7. #5
    CelicaSupra.com Member AJ's Avatar
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    Typically an when an ignitor fails...you would experience the engine shutting down a couple of times then able to restart...then fails completely without warning not long after...

    Thats with an original ignitor from the factory...
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    CelicaSupra.com Member RedP85's Avatar
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    What Arch describe also happend to me in 1990.
    As a preventive maintenance, it is possible to open up the igniter and replace the dryed-up thermal compound paste between the transistor and case. Because when it fails from overtemp, that is it.
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    CelicaSupra.com Member Khlause's Avatar
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    Quote Originally Posted by RedP85 View Post
    What Arch describe also happend to me in 1990.
    As a preventive maintenance, it is possible to open up the igniter and replace the dryed-up thermal compound paste between the transistor and case. Because when it fails from overtemp, that is it.

    Wow, never thought of that, but it makes sense!

  10. #8
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    When my 85 igniter went bad, it did not give any advance wanting. Here is my thread to the solution I found. https://www.celicasupra.com/forums/s.../topics/109401

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    CelicaSupra.com Member KJK_Texas's Avatar
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    Quote Originally Posted by RedP85 View Post
    What Arch describe also happend to me in 1990.
    As a preventive maintenance, it is possible to open up the igniter and replace the dryed-up thermal compound paste between the transistor and case. Because when it fails from overtemp, that is it.
    THIS!!!!
    This is the best thing you can do for your 3 decades old igniters.
    The heat sink compound has dried out and is no longer doing its very important job.
    The case is heavily finned for a reason.
    Keep it fresh and the igniter should last forever.
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    Where do we find the paste?

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