Question about 2006 Jeep Liberty

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2003 Jeep Liberty Limited. My battery light comes on after I've driven about 40 miles and stays on. I installed a new battery a few weeks ago because it was hard starting in the cold weather (minnesota) and since the battery was 7 years old I figured it was inevitable to change and didn't want to be stranded anywhere. With the light on I had the mechanic test the alternator and it showed the alternator charging at about 80%. He then tested with another device that he had with all the electronic gizmo's inside the cab going. Still no change in the alternator. What else could it be?

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Posted on Jan 02, 2017

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SOURCE: 1996 Jeep Grand Cherokee Limited Alternator issues?

have the alternator regulator and diodes tested. sometimes when the regulators fail they allow ac voltage to go to the battery. ac voltage doesn't charge the battery properly (causes it to deep cycle and shortens its life) and causes all sorts of funny problems with the car. also make sure the battery is secured properly, vibration isn't good for them at all.

Posted on Aug 13, 2008

hasbensystem
  • 63 Answers

SOURCE: new alternator (actually 2 new) no charge

Find a friend with a heated garage that you can use first off, then locate the short that may be causing all this. Unless you have a bad battery? If its more than 3 years old, replace it. Batterys are cheap. WALMART has em under 89 bucks for most vehicles.

Posted on Dec 20, 2008

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SOURCE: 1996 Jeep Grand Cherokee intermittent voltage drop, lose electric

I wont list this as a solution, but it seems that working in the area of the alt may have moved around some wiring...the alt may be OK but perhaps an adjacent wire (maybe a ground) is not well connected. Also check crimped on wire loops on alt connectors..they like to corrode at the crimp where it crushes on the actual wire.

Posted on Feb 19, 2009

  • 227 Answers

SOURCE: 1995 Jeep Grand Cherokee squeaking and power steering

It very well could be the pawer steering pump. But to isolate the squeking sound, take that can of wd-40 and find the idler pully and tensior pully. Spray the bearing area of both pulleys. If your bearing in those pulleys are going bad then it will make that noise. If the wd-40 quits the noise at one of those tow pulleys then you know which one to replace. If its does not, then start looking to replace the powersteering pump. I take it you have checked the power steering fluid levels and they are ok?? Also, you stated that the noise started after you bought the alternator, then try a new alternator. It might of just been a faulty alternator. Happens all the time. One last inexpensive tip is replacing all belts with new. Belts get glazed over and dirty and cause noise too. One last question. Did you make sure the belts were tight enough? Just a little variance in the belt tension can make the difference.

Posted on Aug 07, 2009

  • 295 Answers

SOURCE: Dashboard lights on 2002 Jeep Liberty Sport

Donna,

You can go to Auto Zone . They can scan the car for codes for free, and check the Alternator. I think with all the issue with the dash lights coming on, The codes should get a tech in the right direction. You could be right and the Alternator is the root cause of failure.

Good Luck

Posted on Aug 16, 2009

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Donna,

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