Question about 1993 Jeep Wrangler

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93 wrangler 2.5 engine turns over but no spark.

I can jump awire from battery to coil and it will start

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  • robert greslick Jul 09, 2012

    engine light is on and it doesnt start up easily. if i remove jumper wire it will not start. relays and fuses are ok. i changed cam sensor in distribitor did not help.

  • robert greslick Jul 09, 2012

    auto shutdown is working when i turn ignition but no power to coil

  • robert greslick Jul 09, 2012

    02 sensor is unhooked but is has been for along time. i also had a electric fan hooked up and i had it wired to the coil. when i turned ignition on the fan was on it worked fine . dont know if these have anything to do with problem

  • robert greslick Jul 11, 2012

    i have replaced icm and crank sensor and
    still wont start. going to check ignition switch tnight

  • robert greslick Jul 16, 2012

    fixed. had a bad wire

  • ernesto cuadra
    ernesto cuadra Jul 16, 2012

    o.k great.



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  • Jeep Master
  • 12,223 Answers

1) see the system attached.
2) follow the steps in the flow chart attached.
God bless you
93 wrangler 2.5 engine turns over but no spark. - 7_9_2012_1_38_43_pm.jpg7_9_2012_1_39_93 wrangler 2.5 engine turns over but no spark. - 7_9_2012_1_39_16_pm.jpg /><img src=

Posted on Jul 09, 2012

  • ernesto cuadra
    ernesto cuadra Jul 11, 2012

    follow the chart and proceed. God bless you



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SOURCE: intermitent starting

sometimes the ais(automatic idle speed) valve gets loaded with
carbon. its an easy fix. you have to remove the throttle body
invert it and you will see the ais chamber and look in and see if it is
built up with soot. carb cleaner should work.if you can remove
the valve for better cleaning. peterjai

Posted on Jan 16, 2009

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SOURCE: 93 wrangler won't start. no clicking when key is

In order to Determine if it IS in FACT the Starter, you need to Use a TEST LIGHT at the STARTER TRIGGER Terminal on the STARTER this is the Terminal that gets Positive Volts from the Ignition Switch >>when it is in the START Position, ((the smaller terminal on Starter))> if you DO have POWER at this Terminal when key is Turned to START Position, then it IS a STARTER FAILURE . You Should Also Check the Available Voltage at the MAIN POSITIVE POWER Terminal< (From Battery Cable) to be SURE you have Proper Volts there. This is ALL ASSUMING that Your GROUNDS ARE GOOD and ALL MAIN BATTERY TERMINALS ARE CLEAN.

Posted on Oct 31, 2009

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SOURCE: 98 jeep wrangler wont start. no spark from coil.

there is only two things left. the crank sensor that is located at the top of the transmission bellhousing or the pick up inside of the dist. it is that black plate that sits between the cap and the dist housing. hope that helps.

Posted on Mar 15, 2010

  • 245 Answers

SOURCE: I was off roading in my '92 jeep wrangler 2.3ltr

I would start by checking all the fuses and relays under the hood , you can have one or more fuse or relay disconected or loose from the big bump
also go threw chack all electral conections, one or more might have come loose
it would be a good idea to go threw all fuses and conections unplug and plug back in.
Let me know if we need to dig deeper into it but i think you will find a loose conection

Posted on Jul 13, 2010

Testimonial: "After checking all the things I thought were the cause I went over all my fuses like you said and that was right. My jeep runs like before. Thank you"

  • 1916 Answers

SOURCE: 1988 Jeep Wrangler starting problems. I replaced

you are saying it is getting spark, and fuel, right? If it is getting spark, and fuel in to the throttle body, check compression-make sure the Mass Air Flow sensor is plugged in, and double check your spark-you say you replaced all those ignition items, but do not say that you have spark.

Posted on Jul 01, 2011

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It was working fine until we had a snow storm. The engine quit. After about 15-20 minutes I was able to start it again, but it happened 2 more time, each with a 15-20 minute wait in between starts. It sat...

i had the same thjng happen after much $ it was the coil. the snow would make the engin compartment moist and the coil wuld jump spark to grond from the coil wire and were it plugs in to the coil . the fix new coil and the coil computer thats on the coil itsself .to check this open hood find coil start engin then spray water from a spray can on top of coil and look for jumping spark. good luck.

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1989 jeep wrangler starts jumping and backfiring

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1 Answer

The Jeep has set for about 6 months. A week ago: battery dead, jumped it but would not start. I replaced the coil, jumped it and it started instantly and ran better than it has in years. Yesterday, I...

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1 Answer

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