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2003 Chevy Tahoe Battery

Tiny
CHADGERTH
  • MEMBER
  • 2003 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 118,000 MILES
I have 2003 tahoe and the battery went dead. Since I have not replaced the battery since the truck was new I assumed replace the battery. That did not work the truck idles rough and the new battery will not hold a charge (possible draw?). I brought the truck up to the local auto parts store to have them test the new battery and the altinator and they tested fine. I am at a stand still any ideas?
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Thursday, April 16th, 2009 AT 11:02 PM

3 Replies

Tiny
EUGENE123
  • MECHANIC
  • 273 POSTS
Try a battery parasidic which is something that stays on all the time whether the car is on or not, check all your electrical things to see if anything is staying on
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Friday, April 17th, 2009 AT 2:06 AM
Tiny
CHADGERTH
  • MEMBER
  • 2 POSTS
I have allready had it in for Diagnostics and could not find a parasitic draw. They say the PCM might need to be reset? Can you reset a PCM?
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Friday, April 17th, 2009 AT 7:19 AM
Tiny
EUGENE123
  • MECHANIC
  • 273 POSTS
Yes you can try taking the negative terminal off the battery for 5 mins and then put it back on this usually resets them
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Friday, April 17th, 2009 AT 2:26 PM

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