Question about 1998 Jeep Cherokee
Can you explain what you mean? How did you get this reading and what is it related to?
Posted on Apr 18, 2014
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.
Posted on Jan 02, 2017
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.
Posted on Jun 18, 2009
SOURCE: low voltage at low revs
hi this sounds like the alternator is faulty, there is a voltage regulator on or in the alternator to obviously regulate the voltage to the battery , say when lights are on it increases the voltage to the battery to adjust for the flow from the battery, would suggest you either get it checked or replace it...hope this helps
Posted on Feb 19, 2010
If you have verified low voltage using a scanner, keep in mind that some scanners will not differentiate no voltage from low voltage. Before testing, make sure the battery is fully charged and that all ground points are clean and secure. (in addition to the main battery cable to the block and fender, there are usually up to five more smaller wires on block and near the computer). Check all your fuses, especially those in the power distribution center.
To test further than that, you will need a good wiring diagram (chilton and haynes have diagrams but chilton seems to be more "readable" and accurate). First, follow test instructions in the manual and check each sensor. Then, use your multi-meter to check power at the computer harness plug, then follow the diagram and test wiring from the computer to the sensors, by disconnecting battery and using the ohm meter setting, checking for continuity from the computer harness plug to each sensor. (if you have a security system, find out how to re-set it before doing that) (Most commonly failed sensor is the crank sensor, followed by the cam sensor, so check both first) Most wiring problems happen at the connector ends either from a pin corroding (pin looks black) or where the wire joins to the pin.
Therefore, unless you see that a harness has burned or chafed through, normally you do not have to cut into taped areas. When working on a harness, it is often a good idea to use a notebook and write down the results, pin location and destination of each wire you check. That way, if an "odd" reading begins to show up in a shared wire, you can reference it to the diagram and get some idea of what is going on.
As you can see this is a bit complex....therefore I cannot give you a simple answer. If there, I'd need to do much the same as outlined above
In testing, you will invest some time, but will not be randomly replacing parts, hoping the problem will go away.
Posted on Jul 27, 2010
Tips for a great answer:
Jun 14, 2012 | 2001 Jeep Grand Cherokee
Oct 03, 2010 | 2000 Jeep Grand Cherokee
Apr 18, 2010 | 2004 Jeep Grand Cherokee
Feb 08, 2010 | 1999 Jeep Grand Cherokee
Jan 03, 2010 | 2002 Jeep Grand Cherokee
Nov 23, 2009 | 1998 Jeep Cherokee
Apr 07, 2009 | 1997 Jeep Grand Cherokee
Mar 27, 2009 | 1999 Jeep Grand Cherokee
Jan 10, 2009 | 2000 Jeep Grand Cherokee
Aug 06, 2016 | 1998 Jeep Cherokee
16 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: