Question about 1999 Jeep Grand Cherokee

1 Answer

I have a 99 grand cherokee and i believe my alternator is going out but am not sure....my regulator reads 9 and 13.5.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,498 Answers

Hey Kid,

Once it's running, what does the dash voltmeter read?

If you have a voltmeter, check the voltage at the battery; both running and off.

+13.5VDC is good output from the Alt.

Is there anything else that makes you suspect the alternator?

Mike

Posted on Sep 09, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

I am getting a code telling me my voltage regulator diodes are bad on my 1996 Dodge Grand Caravan. Should I be replacing the PCM to fix the problem.


Not sure about the 96 but, voltage regulators generally have to do with the alternator. As a matter of a fact you can just replace the voltage regulator on the alternator as opposed to spending the money that it cost to replace the whole alternator, I found this out because a mechanic ripped me off and charged me for a alternator but, he only replaced the voltage regulator diode part on the alternator.. Replacing the PCM is going to be expensive and in my opinion not necessary

Feb 09, 2017 | Dodge Grand Caravan Cars & Trucks

1 Answer

2003 grand cherokee with 153000 miles,,,with rear end repairs needed , is it worth the repair


I think its always worth the repair. I have a 99' F-150 with over 200,000 miles on it. I use it for work everyday(believe me she gets abused) and still going strong. Has at least another 100k miles left on her. Vehicles are going to need repairs, thats what happens, but if you do the maintenance that you should. Then your vehicle will last a very long time. A lot longer than 153k, thats for sure.

Dec 23, 2010 | 2003 Jeep Grand Cherokee

1 Answer

Where is the fuel filter located, ona 99 jeep grand cherokee?


Hello,

There are 2 filters.
  1. One is on the end of the pickup tube inside of the gas tank.
  2. The second is in-line, above the front edge of the gas tank, inboard of the frame member. It is part of the fuel regulator/filter assembly.

Here's a diagram:
http://www.wjjeeps.com/misc/fuel_filter_wj.jpg

Take care.

Jul 24, 2010 | 1999 Jeep Grand Cherokee

1 Answer

My battery is cooking


regulator in modern cars normally built into the alternator

Feb 16, 2010 | 1996 Jeep Grand Cherokee

1 Answer

93 jeep grand cherokee limited 318 - uneven charging


Make sure you have good body and engine grounding. I believe your regulator is in the main computer. I've only seen one bypassed and it used a older regulator from something like a late 70's dodge. I know it needs to be installed in the field wire but not sure of the exact setup.
You also need to disable the old wire to the computer and it will turn the check engine light on which may cause you to fail a state inspection (though it has nothing at all to do with emissions)
May be faster and easier to get another computer from a scrapyard.

Jan 27, 2010 | 1993 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

My 95 grand cherokee starts fine but isnt charging


Pretty sure the regulator on those is in the computer (I know...really dumb...) There is a way to wire around it using an older style regulator but it will keep the check engine light on and may not pass inspection like that.

Jul 07, 2009 | 1995 Jeep Grand Cherokee

1 Answer

Good batt & new alternator.. but battery keeps losing charge


Make sure all connections at alternator are attached. On some, the regulator is inside the computer and if bad, requires computer change.

Jun 26, 2009 | 1994 Jeep Grand Cherokee

2 Answers

99 jeep cherokee sport 4.0l 6cyl voltage will go to 19v


The problem sounds intermittent, if you put volt meter on the battery while it is at that 19volt mark/reading(on the gauge cluster) you will be able to see if it is true. If your alternator is really charging over 16volts the lights should be getting brighter then usual and/or they are burning out. Find out ASAP, if the alternator has a defective voltage regulator, it needs to be replaced. Prolong use will damage components.

Jun 18, 2009 | 1999 Jeep Cherokee

Not finding what you are looking for?
1999 Jeep Grand Cherokee Logo

Related Topics:

172 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...