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I keep losing spark on my 86 toyota, hot or cold

I keep losing spark on my 86 toyota, hot or cold ,could last 5 min ,or two days . when its firing all cynlinders are go go , and it runs great. but it will spudder and spudder , until she dies , and i will lose spark completely. Coil, or a short somewhere ?

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Sounds like a bad coil. But a sensor like a module or an aging distributor cap and rotor are the most suspect. Take off the distributor cap and see if a white powdery substance is building up scrape it clean with a sharp knife... it may run for a few months best to replace the rotor and distributor cap

Posted on Oct 15, 2013


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Posted on Jan 02, 2017

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SOURCE: not getting fire or fuel when hot

Try checking your air filter first. Then check your engine ground connection. Change your fuel filter. If it's none of those, it could be a faulty idle control .

Posted on May 08, 2009

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SOURCE: 1992 Plymouth laser runs good when cold until it is


Posted on Mar 07, 2010

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SOURCE: my 87 toyota 4-runner runs

when this happens,do you have anyway of cooling the E.C.M. unit to see if this component is heat sensitive?,or possibly the reluctor coil under the distributor tower has a thermal issue,the ignition coil that feeds the tower may also have a thermal issue,because you say after it sits a while its fine again for a time

Posted on Nov 03, 2010

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SOURCE: My 89 Beretta loses spark.

An ignition module tells the coil packs when to spark. Autozones can test ignition modules for free. (helps them make a sale)

Posted on Sep 02, 2011

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