MJ Comanche Tech. Stock & Modified. MJ (86-92)
All discussion regarding the Jeep Comanche, the pickup truck related to the Cherokee platform.

Battery AMP

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Old Apr 24, 2016 | 07:27 PM
  #1  
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From: Santa Rosa, California
Year: 1987 Comanche,1990
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Default Battery AMP

87 Comanche 4x4 4.0 ax15

The amp reading is low, so i replaced the battery and it still reads low? Could it be a short somewhere or an alternator? Cant figure it out. Thanks CF
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Old Apr 25, 2016 | 09:17 AM
  #2  
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Originally Posted by NorCalJeep
87 Comanche 4x4 4.0 ax15

The amp reading is low, so i replaced the battery and it still reads low? Could it be a short somewhere or an alternator? Cant figure it out. Thanks CF

How and where are you reading amperage?
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Old Apr 25, 2016 | 02:18 PM
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Whats the reading when its running and not running?
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Old Apr 25, 2016 | 07:38 PM
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i meant the volt gauge on instrument cluster. Sorry been working none stop these past couple weeks, and i havent driven my jeep in a month.
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Old Apr 25, 2016 | 09:36 PM
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Likely a bad alt.
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Old Apr 26, 2016 | 08:05 AM
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Easy enough to test the alternator.

Of my Tips, how many have you completed?
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Old Apr 27, 2016 | 10:39 AM
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still didn't let us know what the readings are?
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Old Apr 28, 2016 | 06:27 PM
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Originally Posted by cruiser54
Easy enough to test the alternator.

Of my Tips, how many have you completed?
Most of them. I did it when i first bought it and it didnt pass smog. Anyone got link to how to test bad alt?
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Old Apr 29, 2016 | 12:22 PM
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Originally Posted by zebvance
still didn't let us know what the readings are?
this could help you if we knew.....
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Old Apr 30, 2016 | 08:34 PM
  #10  
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Originally Posted by zebvance
this could help you if we knew.....
i have no idea what to do lol. I found my multimeter i had in storage. got out of the corps not too long ago.
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Old May 2, 2016 | 11:17 AM
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Originally Posted by NorCalJeep
i have no idea what to do lol. I found my multimeter i had in storage. got out of the corps not too long ago.


So how do you know you have low voltage? what does the gauge read?
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Old May 3, 2016 | 10:34 AM
  #12  
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Originally Posted by zebvance
So how do you know you have low voltage? what does the gauge read?
The instrument cluster
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Old May 3, 2016 | 10:39 AM
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ok I give up. Im out............
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Old May 3, 2016 | 02:22 PM
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Originally Posted by zebvance
ok I give up. Im out............
Me too. Unsubscribed.
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