Calgary Jeep Association

Author Topic: 1996 grand cherokee not charging  (Read 1199 times)

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Offline streetvan1

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1996 grand cherokee not charging
« on: January 20, 2012, 07:08:54 PM »
Hi. I'm back in the jeep game, after a bit of a break. My 96 grand cherokee, 4.0 litre, all stock so far, started having greif starting in the cold. I replaced the battery, as it was pretty old, and was losing charge when it sat for 2 or 3 days.

Then, about a week after replacing the battery, I started having some grief with an intermittent no charging issue (according to the guage, anyway). I couldn't ever catch it in the act to see if the voltage was actually falling off, or if it's just a guage thing. I replaced the alternator with a new bosch unit just to be safe, as I do take it on some pretty long highway trips - and the fault is still present!

Every once in a while, the guage will drop to the bottom, and the check guages light will come on. This can happen when sitting at a light, or when driving around the city. It can go on for over a minute, or sometimes clears itself up within a few seconds. By the time I pull over and pop the hood, it's back up again! I've been driving around for the last week with a voltmeter on the passenger seat, just waiting to test it, but no luck. Any suggestions?

Offline cLAY

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Re: 1996 grand cherokee not charging
« Reply #1 on: January 21, 2012, 10:14:58 AM »
Are there any high load accessories on such as heater or wiper when this happens?

Does reving the engine make a difference?
..

'93 ZJ, 5.2L, lifted/locked/36s..<gone>
'98 5.9er 4.10s,locked,LA,WJ knuckles

Offline streetvan1

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Re: 1996 grand cherokee not charging
« Reply #2 on: February 02, 2012, 12:27:21 PM »
The heater was on every time it occured, intermittently the lights would be on too. Turning stuff off and changing engine rpms made no difference. It would always go back to normal after about 20 or 30 seconds. Now that it's been warm, it won't do it anymore! Seems to be below -20 only thing, so I'm ignoring it for now.

Offline birdo

  • Baby Wheeler
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  • 99 TJ
Re: 1996 grand cherokee not charging
« Reply #3 on: February 02, 2012, 07:35:45 PM »
I'm thinking one of the contacts at the back of the gauge cluster is losing contact, however, my experience usually results in all the gauges cutting out. Easily fixed by removing the cluster and cleaning the electrical contacts on the back. (I use spray on electrical contact cleaner from The Source and a cotton swab)  It certainly fixed my problem. Have you tried giving the top of the dash a bang with your fist when it cuts out? If you do that and the gauge jumps back up then it could be the contacts.
John Bird
Okotoks Alberta
1999 Jeep TJ Sahara
Desert Sand
Hercules 31s on Ion Alloy Rims
Rough Country Suspension Lift Kit
Custom Truck Bed Liner Paint Job (heh, heh)
Some Cheapo Clarion Stereo
Heated Seats, Air-Con, Cruise
230,000 kms

Offline binare

  • That CB Yapper
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Re: 1996 grand cherokee not charging
« Reply #4 on: February 02, 2012, 08:36:02 PM »
My 1500 does something similar around -30. I just ignore it and pretend its normal for dodge.

Offline w squared

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Re: 1996 grand cherokee not charging
« Reply #5 on: February 03, 2012, 07:42:58 AM »
My 1500 does something similar around -30. I just ignore it and pretend its normal for dodge.

Whaddya mean "pretend"? It's a Chrysler product  ;D
I followed a rainbow out to a garage and found a leprichaun. The rainbow ended in a potted cactus on his porch, but there was no gold :(