Question about 1993 Jeep Grand Cherokee
I have a 1993 Jeep Grand Cherokee. For about a week now, the Voltage Meter has been on the low side of where it normally runs. We decided to ignore it…maybe it’s yet another quirky Jeep thing. Also, the Check Engine light came on intermittently. Other than that, the Jeep seemed to run fine. Today, we took a family outing. As soon as we got about 15 miles from home, we noticed that the Voltage meter started dropping into the “orange”. Still, the truck ran just fine. As we continued on, the AIRBAG light came on and stayed on. Next, the ABS light came on and stayed on. Somewhere during all this, the Voltage meter dropped all the way down and stayed there. No reading at all. Also, the Speedometer and Odometer dropped to “0”, jumped back up a few times, and then eventually dropped back to “0” and stayed there. The radio (Volume only) quit. The radio had juice because the station number and antennae still worked…just no Volume. Also, the Message console lights went out. Soon after all of this happened, and as I was slowing down (to approx. 35 mph), I could feel the truck start to studder and I knew it was going to shut off. I managed to drift into a gas station that happened to be on my left side. The steering and brakes were both very hard to engage. The battery is dead, so we are recharging it right now.
Do you think this sounds like the Alternator or the Voltage regulator, or something else?
Hello, with much satisfaction as of now, I am happy to say I have fixed this problem yesterday. I did so by continuing to read through these message boards, put certain ideas together and figure it out. We all know by now Jeep has ridiculous flaws, how a recall was never ordered, we may never know.
In any case, Jeep has a defective internal Security System. Once malfunctions begin to occur, it is all down hill from there. It cause Battery drainage even after changing battery. Simply remove the fuses for the security system. They are located on the pasanger side, on the right hand side of glove box there is a panel, remove it and find fuses # 6 and # 7. Take them out and Problem is solved.
I have tried everything from the wiring in door panel, wiring in foot panel and everything else that was suggested, It all finally came to an end one the fuses were removed. Good Luck and I hope this helps
Posted on Dec 11, 2008
More than likely,the gauge was indicating that the alternator had quit charging.When an alternator does quit charging,it takes about as long as you described for a battery in good condition,to discharge,and the vehicle stops running.On your vehicle,the voltage regulator is built into the alternator.To fully diagnose the problem only requires a battery charger and a volt meter.Charge the battery fully over the course of about 6 hours on a 10 amp charge,remove the battery charger,start the vehicle,and check battery boltage with the voltmeter.A functioning,or charging alternator will give a reading of between 13-13.5 volts up to 14-14.5 volts at the battery.If the reading is less than 13 volts,then the alternator is not charging,and needs to be replaced.If the battery is old,or does not hold a charge,have it load tested to verify good or bad.Good luck.
Posted on Aug 10, 2008
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Posted on Jan 02, 2017
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