Question about 1998 Jeep Grand Cherokee

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Drained battery alt is good did a load test that was done showed alt is good no after market parts 98 jeep grand Cherokee and see a lot with the same problem

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Step by step testing with a test light while removing fuses one at a time will help isolate the defective circuit.

Posted on Apr 10, 2011


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04 jeep grand cherokee, inline 6, has no power at all, one time will not start, next time starts fine, is not the battery, alt gage shows 14 amps, but wavers up and down 2 amps

The 14 amps you read is the alternator output. The battery should show 12V at full charge, you can
have a batt. load test and specific gravity test done at sears-walmart or any of the chain parts stores autozone etc. for free. Your problem sounds more like a bad connection, clean the battery
terminal connections first before buying any parts, and if you happen by walmart or an autozone
stop in and have the battery tested, can't hurt this time of year. Hope this helps.

Dec 09, 2010 | 1997 Jeep Grand Cherokee

1 Answer

5 amp problem causing battery to die out....had diagnosic problem new battery, alternator good and starter good...but still showing a 5 amp draw.....tested all interior exterior lights

The easiest way to isolate a draw is by pulling fuses one at a time. When the draw goes away you can research the circuit that the fuse supplies power to.

I’m happy to assist further over the phone at

Dec 06, 2010 | 1997 Jeep Grand Cherokee

1 Answer

Jeep was slow to crank, and acts as though it did not want to go when you push the gas pedal. Had to have it jumped off last sunday and had the battery tested, it tested good, but very weak. It did fine...

In order to properly test a battery it needs to be fully charged using an external battery charger, then load tested. A car alternator is not designed to do anything except maintain the batterys initial state of charge. A good battery will not drop below 9.5 volts when loaded to 300 amps, and should quickly return to at least 12volts when load is removed..
If the battery does not pass that test, replace it. Then, have a charging test done on the vehicle with the new battery installed. A quick test can be done by putting a volt meter on the battery and watching voltage with all the accessories turned on. Generally the volt reading should remain around 13volts and not slowly drop over time. A reading of 14volts or higher also indicates a problem of over-charging that can overheat and damage the battery.
What you said sounds a lot like your battery has sulphated (material from the plates falls down to the bottom of the battery and causes internal shorting allowing the battery to drain itself over time). A load test will show that. But, driving with a marginal battery can damage the charging system so a charging test should always be done after replacement.

Oct 31, 2010 | 2007 Jeep Grand Cherokee Overland

1 Answer

I have a 1993 jeep grand cherokee. its not charging. i've had the alternator and battery tested they're good. is it the voltage regulator? if so how do I change it? where is it? or can it be something else...

How can the Alt and Battery be good, but not charging? The Voltage Regulator is inside the alternator. Keep out of the Parts Store and take it to a shop and have it checked on the truck. you may have wiring issues.

May 14, 2010 | 1993 Jeep Grand Cherokee

1 Answer

I have a 1994 grand cheerokee limited that has the check engine light come on every so often and the rpm start jumping up to 1 and down to a stall sometimes it don't stall. The battery gauge meter starts...

Likely you have a bad connection at the alternator or the alternator has developed an internal short or disconnect.
Have your charging system tested. Some testing is done without regard for the fact that some Jeeps have the regulator incorporated into the computer itself. If the alternator is "full fielded" and checks out as good, that tells you nothing about the regulator.(most times a problem like yours is in the alt though).
A code test (free at most larger parts stores) may show a low charging rate. If so, go right to alt testing.
good luck

Dec 09, 2009 | 1994 Jeep Grand Cherokee

1 Answer

My 93 jeep grand cherokee starts but it draws a lot of juice then it dies. So far I have replaced the fuel pump, starter, coil, ignition, and alternator. Any suggestions?

Based on what you noted, your system is not drawing too much, it is overcharging. Determine if you have an external regulator in your system (depends on alt. make and alternator design) Many of the Jeep systems have the voltage regulator as an integral part of the main computer. Likely it has failed. Also make sure that the charging system is properly grounded and the battery is fully charged and can undergo a load test without substantial voltage drop. If it cannot, it will over-work the alternator.

Oct 25, 2009 | 1993 Jeep Grand Cherokee

1 Answer

98 grand cherokee, no spark, coil good, replaced computer????

Have you done any real testing or are you just swapping parts out? Checked the cps?

Jul 09, 2009 | 1998 Jeep Cherokee

1 Answer

My battery keeps draining and I have to jump my 2002 Jeep Cherokee and then it shuts off.

Charge your battery and have it load tested. If OK, check the charging system. (even if you find that battery is not good, check charging system after battery has been replaced.) Likely you will find a problem there.

Jul 06, 2009 | 2002 Jeep Grand Cherokee

2 Answers

1994 jeep grand cherokee rplacing back hatch and passenger door

Just call the part stores and dealership head quarter the dealers ususally wont give you that info, also junk yards will help you out a lot also.


Apr 10, 2009 | 1994 Jeep Grand Cherokee

2 Answers


Probably it is not just charging well.
Go to Autozone store and for free they will check the battery voltage and alternator current. Draining of battery during driving means the alternator not charging the battery back or alternator is not providing current which is less than car consumed and the additional current coming from battery. The common symptoms might be the dimming the lights, heater flow on idling or than rpm goes down.
Hope that helps
Good Luck

Mar 03, 2009 | 1993 Jeep Grand Cherokee

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