2000 grand cherokee limited v8 - JeepForum.com
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post #1 of 8 Old 07-22-2017, 05:36 PM Thread Starter
Dgrsdentattoo
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2000 grand cherokee limited v8

My grand cherokee has me scratching my head here. While driving the other week the battery gauge started to drop. Lights on dash started coming on one by one then it wouldn't go over 5 mph. I could floor it and still nothing. Then the gauge shot back to normal, the dash lights went off and it went back to driving normal. Two days later the gauge started going down again but nothing else happened but it did drive a little bit rough. Next day it wouldn't start. I went to jump start it and it would only start and stay running if i hit the gas. But even with keeping it going with the gas pedal, as soon as the jumper cable was removed the thing immediately dies. Any ideas what this can be? Any ideas will be much appreciated. Thank you

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post #2 of 8 Old 07-22-2017, 05:52 PM
MossyOakD
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Quote:
Originally Posted by Dgrsdentattoo View Post
My grand cherokee has me scratching my head here. While driving the other week the battery gauge started to drop. Lights on dash started coming on one by one then it wouldn't go over 5 mph. I could floor it and still nothing. Then the gauge shot back to normal, the dash lights went off and it went back to driving normal. Two days later the gauge started going down again but nothing else happened but it did drive a little bit rough. Next day it wouldn't start. I went to jump start it and it would only start and stay running if i hit the gas. But even with keeping it going with the gas pedal, as soon as the jumper cable was removed the thing immediately dies. Any ideas what this can be? Any ideas will be much appreciated. Thank you
Is your CEL on?

I would start with checking your battery cables, terminals, and having your battery tested.
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post #3 of 8 Old 07-23-2017, 02:15 AM Thread Starter
Dgrsdentattoo
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Have no idea what the cel is or how to check it. Battery was new about a month ago. I checked every fuse and the alternator.
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post #4 of 8 Old 07-23-2017, 02:19 AM Thread Starter
Dgrsdentattoo
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Damn. Did i have a brain fart. Ok yes the Cel is on and been on since i bought the jeep.
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post #5 of 8 Old 07-23-2017, 07:19 AM
99SK04GTX
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"I would start with checking your battery cables, terminals, and having your battery tested."

x2

A high percentage of similar problems are solved with battery/posts connection repairs. They need to be clean and tight
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post #6 of 8 Old 07-24-2017, 05:29 AM
Double E
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Classis alternator failing description. Check this post: http://www.jeepforum.com/forum/f310/...4-7-a-1517152/
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'04 Freedom Edition HO & '04 Overland HO (previous '00 Laredo 4.7)
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post #7 of 8 Old 07-24-2017, 09:43 AM
blueseasons1
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If you suspect its the ALT give it a whack and see if that helps. Sometimes when the brushes are very worn one will get hung up and not make contact with the armature.. The jolt will have the brush fall into place and start generating electricity. I just replaced the brushes in mine and it has been working fine. Something like 8 bucks off of EBAY, if you can't find them locally. Even my parts store said they don't have good "luck" with rebuilt alternators so I figured I was better of replacing the brushes. I could not locate a new alternator for my 2000 V8, and wasn't aware of the DURANGO option either at the time. I didn't have the CEL light, just low reading on the gauge.
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post #8 of 8 Old 07-24-2017, 09:57 AM
Double E
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A CEL will not typically occur. You WILL get a "Check Gauges" light though. I think it is set to appear at a minimum voltage like 8.5V or something. In any case, when the alt begins to act up, you are on battery power and repeatedly drawing down your battery will eventually damage the battery.


This issue happened to me in 2013 at about 170K miles and the Durango was still in it at 225K miles when I sold it in 2017.

'04 Freedom Edition HO & '04 Overland HO (previous '00 Laredo 4.7)
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