battery light comes on jeep liberty


Asked by Jan 06, 2015 at 10:47 AM about the 2005 Jeep Liberty Limited 4WD

Question type: Maintenance & Repair

is is the battery or the alternator? I noticed a squeaking noise starting the stalled
on first try and then started right up light always- battery light remained on.

3 Answers


Battery light usually means the alternator is not charging. Did you check the voltage? From your description of squeaking, I would check the pulleys, bearings, belt tensioner, alternator and the serpentine belt as the possible culprit.

3 people found this helpful.

I had the serpentine belt replaced 2 yrs ago. Im at work- I dont have anything to check the voltage with me- i know it should be 11.5-12.5..and the battery is 7yr old on 10 yr battery- can you estimate a cost on what an alternator replacement can cost?

6 people found this helpful.

If you put a voltmeter across the battery when the care is not running, a fully charged battery should be 12.6 volts. When the alternator is running, it should read 13.8 volts.

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