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srmkenzie 06-01-2012 07:23 AM

Do you know?? Electrical Issue
Vehicle: 2001 Jeep Grand Cherokee Limited V8

We have been battling with our Jeep over the past year. I read a lot about them having electrical issues. This time I want advice instead of wasting money on parts that aren't the problem.

So far we replaced the battery, some fuses, and the starter.

Issue: The Jeep goes from having normal voltage on the gauge to nothing. Interior lights dim and display, where the compass and degrees are, shuts off. Most of the time it starts, but it will putter. When using the A/C or heater the voltage was staying around 14 on the gauge. When it is shut off the gauge drops. Last night going home, the gauge just dropped completely and check engine light came on. The battery had corrosion on the negative post so we tried another battery, but it was still not working right. I have codes P1682 and P1499 coming up. Is it the battery again? Is it a bad alternator? Is it bad battery cables? What else could it be?

Advice and experience is needed and much appreciated.

srmkenzie 06-01-2012 02:31 PM

Replaced alternator and now everything works fine!

nickcospo 05-08-2013 10:03 PM

I have the same problem but had my alternator checked and it is good idk what to do

WhiteMtnJeep 05-09-2013 07:08 PM


Originally Posted by nickcospo (Post 15409084)
I have the same problem but had my alternator checked and it is good idk what to do

Where did you have it checked? Autozone does not always catch the bad ones and I personally don't trust them.

Start with the basics.

How old is the battery and alternator? Check your clamps, are they clean and tight? Check the grounds, are they clean and tight as well? High milage alternators can have low/intermittent output.

The time now is 11:14 AM.

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