Question about 1991 Mazda 323

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Whiledriving the revs drop, and there is no drive, then stalls

Since my mechanic sprayed the engine with silicone to shine up while driving the revs just drop, once pulled over the car dies, and wont restart, this has happened a few times and after a few hours will restart,
but since the last time it happened it wont ever start again.

all the ignition lights are on when trying to start and the distributor is getting hot, checked the wires i no and fuses, spark plugs leads and just what i no, but no use so far,

Can you help me please.


Posted by on

  • mike king Jan 22, 2009

    just adding to the problem.

    spark or fuel answer posted on answer.

    I took the 1st spark plug out of the car, earthed it and got no blue flash.
    From trying to start it alot the box that the last lead goes to? gets hot as.




  • mike king Feb 02, 2009

    Thanks very much, im going to try this tomorrow afternoon and will let you no how i go

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Well it's possible that when the mechanic sprayed your engine he may have also used cold water or lukewarm water to rinse it. Or the silicone itself was cold coming from the can. If the coil/coil packs were hot at the time, or the ignition module was, it is likely that the cold liquid(s) spraying on the hot electronics may have cracked either the coil magnet or the ignition module causing them to fail. Repeated misfiring from damaged coils or ignition modules can cause failure at the rotor and distributor cap by constant crossfiring inside. You'll want to remove the distributor cap and look inside for evidence of burnt, broken, or cracked electrodes. If they appear blackened or melted/burnt you will definitely need to replace the cap and rotor. Before replacing them however, you may want to take a close look at your coil or coil packs and the ignition module. One way to check the coil to see if it is cracked is this: Place the vehicle in a darkened area or wait til it is dark out if you can't move it. Since the vehicle isn't running everything should be cold so this test won't damage anything any further. Fill a spray bottle with warm water. Spray a mist of water on the coil. Have an assistant crank the engine and watch in the dark the area of the coil. If you see a lot of arcing or a halo like effect of electricity you will know the coil magnet is likely damaged. If not, it is probably ok but you'll want to have the ignition control module tested. You can probably have this done at a reputable parts dealer or garage who have the correct electronic test devices. If both the coil and the ignition control module check out ok, go ahead and replace your cap and rotor then try starting her up. Anything that tests bad obviously must be replaced first to get it running and to prevent further damage to the ignition system. If you are getting no spark it is most likely the coil, second most likely the ignition control module. Good luck and let me know how it goes.

Posted on Feb 01, 2009

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