Question about 1992 Mazda MX-3

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No spark I have a 92 mx3 with a 1.6 auto. engine was running rough on tune on cold start. replaced plugs, rotor and cap. engine started right up, ran for several minutes then quit. searched back to no spark at coil. replaced coil. engine started up, ran for about thirty seconds and quit, restarted and ran for about ten seconds and quit. will not start again. no spark from coil. any thoughts

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  • cc1059 Dec 05, 2008

    belts are good, lots of juice to crank it over

  • Anonymous Mar 15, 2014

    Engine won't restart till cold just had coil upgrade

  • Anonymous Mar 24, 2014

    cranks but does not start

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  • 416 Answers

What about battery and alternator (serpentine belt).

Posted on Dec 05, 2008

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It sounds like you need a good tune-up, such as spark plugs and/or wires. They will act up when cold and when warmed by engine temperature will let the engine run smoothly again. And possibly a distributor cap/rotor.

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Did you replace the fuel filter when you replaced the pump ?
Was it running rough before the pump was replaced.
Did you replace the cap and rotor too ?
"Sucking a ton of air" could be a vac leak, or the sound of the throttle open when the engine is bogging down.
Is the check engine light on when it is running ?

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Won't start fuel pump replaced new tank and relay have fuel after fuel filter runs if I put fuel down throttle body. this is on a4,3.


Nephew had similar problem on different vehicle - had spark to plugs, limited gas, everthing else checked. I did one thing first - check for two fuel filters - one in the tank was only screens and one in the line itself. Found a little in line filter just outside of engine compartment under car next to frame that looked like it had never been changed - partially clogged - replaced it.Almost ran but would not keep running. I had rotor and cap pulled - found that the screw holding rotor in place was loose. The rotor edge next to plug wire leads was chopped up and the cap's plug wire leads were heavily oxidized. Replaced them and got it running but a little rough. Pulled the spark plugs and found gaps from 25 - 100 ---replaced the plugs with correct gapping and it ran really well.

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that would be a very good place to start, also spark plugs and spark plug wires can cause this. spray the plug wires with water a spray bottle ($1 stores have these), if the engine begings to run rough suspect the plug wires are defective..

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There are several problems that can cause this behavior, Is it cold where you are? If so the geo's have a known issue with starting in cold weather.

If not then here is a list of possible issues

1.) Cracked or damaged ignition coil and/or primary wire.
2.) Fuel Pump.
3.) Clogged fuel injectors (Engine will run rough when it does run if this is the case)
4.) Badly worn spark plugs, Spark Plug wires, Distributor cap and/or rotor.

*** WARNING *** Your ignition system contains dangerous voltage levels that could seriously injure or kill anyone coming into contact with the spark. Be sure to use insulated pliers or a spark tester and follow the instructions. Failure to do so could cause serious injury or death.

Tests to confirm:
1.) Purchase a spark tester from your local auto parts store, Connect a spark plug wire to the tester and connect the tester as described in its documentation, Have a friend crank your engine and watch for a bright blue spark, The spark should happen frequently and with a rythm, If it seems to skip alot proceed to test #4. If you dont see a spark at all the ignition coil is to blame, Even if you do see a spark, It should be bright blue and clearly visible in daylight, If it is then your ignition coil is doing its job.

2.) Get a pressure gague and hook it up to the fuel line, Turn the key off and on several times (Dont start the engine) if the pressure doesn't rise when the key is turned to on, Your fuel pump may be faulty, Even if it does rise it should reach 15 PSI, If it doesnt then replace the fuel pump and fuel pressure regulator.
3.) You would have to remove the injectors. I recommend you have a mechanic check to see if this is the problem.
4.) Remove the distributor cap and check the rotor for carbon tracking (A black line on the end that touches the cap) if you see that, Replace the cap and rotor and try test #1 again. If the rotor and cap are in good condition, reinstall them.

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1 Answer

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