Question about 1993 Jeep Grand Cherokee

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I have a 93 jeep grand cherokee larado have replaced alternator, starter, battery, coil, still has no spark got power to everything coil has power at it but nothing comes out of it repaced cap and rotor still nothing tryed cps but didn't help anything have any other suggestions was running then alternator went bad and hasnt started since turns over but no spark

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  • Jeep Master
  • 17,129 Answers

For a starting issue you have changed a whole list of items.
The alernator , battery and starter are related to charge and produce the required cranking for the engine. The absence of spark can be relative to the rotor, the distributor, the HT wires and the platinum contactors/capacitor. So remoe the plugs and checck the gaps , celan them do not set them, crnk engine to see spark in all the plugs before they arre fitted back. Make sure there is not overflow of fuel.

Posted on Sep 16, 2010

  • Donald DCruz
    Donald DCruz Sep 16, 2010

    Not to forget the timing and tuning of the engine ( use a strobe lamp.)

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  • Master
  • 395 Answers

The only thing left to replace would be the electronic trigger module which is mounted inside the distributor. If this module is bad it won't switch the coil on and off to produce spark.

Posted on Sep 16, 2010

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95 jeep grand cherokee larado 6 cylinder, wont start


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My 93 jeep grand cherokee starts but it draws a lot of juice then it dies. So far I have replaced the fuel pump, starter, coil, ignition, and alternator. Any suggestions?


Based on what you noted, your system is not drawing too much, it is overcharging. Determine if you have an external regulator in your system (depends on alt. make and alternator design) Many of the Jeep systems have the voltage regulator as an integral part of the main computer. Likely it has failed. Also make sure that the charging system is properly grounded and the battery is fully charged and can undergo a load test without substantial voltage drop. If it cannot, it will over-work the alternator.

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