Last post on Nov 07, 2013 at 9:41 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
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Jeep Grand Cherokee, Electrical, SUV
#92 of 735 93 Grand Cherokee Laredo - voltage
Jan 19, 2009 (8:56 am)
I just bought a 1993 grand cherokee laredo - the problem is -- the voltage gauge drops from 14-18 at start up down to 9 or lower as the jeep warms up or I turn on heater, lights, wipers and then wants to stall. The alternator is new but had it checked twice to make sure was working right, the starter is new. I even tried changing the PCM with one from another 93 ( wouldn't even start ). I put the original back in and the jeep started up. Not sure what to do now. any help would be greatly appreciated. Thank you -- George
#93 of 735 Re: 93 Grand Cherokee Laredo - voltage [wolfdadg]
Jan 19, 2009 (1:59 pm)
take volt meater and make sure that the alt is in fact worling when on your jeep
check wires by batt for corasisen
#94 of 735 Re: 2005 jeep grand cherokee electrical problems [NikJeepGC]
Jan 19, 2009 (2:01 pm)
how old is batt?
if have a bad cell could cause computer to act up
if new could also be the engnition switch (mounted on the bottom of steering coluem i think on the 05s not real sure though)
Jan 24, 2009 (3:27 pm)
i have a 93 grand 5.2 LT. me and sum friends were on our way back from the coast when one of them turned the light on to the upper center console when the console light radio and computer screen went haywire is this a a fuse problem or a wiring problem and since tuesday i lost heater power door locks and all the above items i have listed ne help what so ever would be great thanks. If you would like to reach me directley you can from e mail or my space my email is bigsexy_fordloveryahoo.com
#96 of 735 Re: fuse problem?? [sexy_redneck]
Jan 24, 2009 (10:21 pm)
If you would like to reach me directley...
If you keep the discussion here then everyone benefits.
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#97 of 735 someone please help!
Feb 15, 2009 (8:50 am)
I have a 04 JGCL, it has been in the shop 3 days now and is racking up labor cost. It seems to shut off whenever I hit any bumps in the road, at high speeds, only the speedometer and fuel gauge seem to be effected, they zero out and then come back. At slow speeds, when I hit a bump, it stalls. Mechanic says it is a short (no kidding!) but he can't locate it. Has anyone else experienced the same problems?
#98 of 735 Re: someone please help! [bovee]
Feb 15, 2009 (12:30 pm)
That doesn't sound like a short. It sounds like a broken circuit or bad switch. Have they checked all the electrical connections?
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#99 of 735 Re: someone please help! [tidester]
Feb 15, 2009 (6:51 pm)
not sure what they have or have not checked, I got frustrated with the mechanic and picked up the truck today, now it won't start at all and the fuel gauge is reading empty, the low fuel chime keeps dinging, and when I drove it home, it had 3/4 tank. What kind of circuit or switch should I be looking for, and could this be a bad fuel pump or sending unit? thanks for your help.
#100 of 735 Re: someone please help! [bovee]
Feb 16, 2009 (3:52 am)
The speedometer and gauges are all electronic and there are a number of electrical connections between the battery and these components. The problem could be at any of those junctures. I don't have hands on experience and don't know how accessible any of those would be so we'll have to wait for someone knowledgable to jump in here - anyone?
I am a little surprised the mechanic didn't pick up on any of this (electrical, fuel pump, sending unit, etc.) if starting it is such a problem. Perhaps a new mechanic would be helpful?
SUVs and Smart Shopper
Feb 16, 2009 (5:54 pm)
I have a '97 JC/XJ that I bought used. Ive had it since early '01, all power options. Its always had electrical problems. Im thinking it might have something to do with the remote start the previous owner installed...
First off, sometimes, most times actually, when I roll down the rear window on the driver side, the locks trigger. And then I cannot lock the car without doing so manually for a undetermined amount of time. Also, sometimes the car simply will not start, after I drive it for any length of time. Put the key in and the dash comes alive, but the engine wont turn over. I have to wait anywhere between 5-15 minutes typically for the engine to start. Doesn't matter if I take the key out or anything. Seems like the computer needs to reset?
Ive asked various mechanics and they all have no idea. Ive never had the money to hunt down the problem...