Need help figuring problem out


You'll need to give us a bit more information, like what year and model Jeep you have.
 
More info would be great. Se year models have known issues different than others.

Is when you turn the ign to start the engine the engine cranks but does not start and the battery gauge goes to zero?

General items: Clean battery terminals and shine the opposite ends of the power connections.

Load test the battery and starter.
 
Define "firing"

Also a better description of your symptoms would be helpful.

Is the motor cranking, if so, are you getting spark? Did you check fuel? Does the gauge go to zero while you turn the ignition to start only (while turning over the motor) or does it always stay at zero with the key in the on position?
 
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