1998 Chevrolet Blazer Battery drain

Tiny
KNITTING WOMAN
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
Battery drains overnight. Everything checked and ok. Happened before and it was the seat warmer we disconnected. Worked fine until 2 weeks ago. Now have to recharge every morning. Everything is turned off at night. Dealership is clueless. Any suggestions as to what it could be.

Sunday, July 26th, 2015 AT 8:18 AM

6 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The dealership is clueless?

Did you give them the vehicle and authorization to spend time troubleshooting?
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Sunday, July 26th, 2015 AT 11:19 AM
Tiny
KNITTING WOMAN
  • MEMBER
  • 3 POSTS
Yes both the dealer and my repair shop had it over night.
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Monday, July 27th, 2015 AT 9:42 AM
Tiny
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I find it hard to believe the dealership could not troubleshoot the problem. This is something they do daily.
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Monday, July 27th, 2015 AT 1:25 PM
Tiny
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I find it hard to believe the dealership could not troubleshoot the problem. This is something they do daily
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Monday, July 27th, 2015 AT 1:46 PM
Tiny
KNITTING WOMAN
  • MEMBER
  • 3 POSTS
You would think but I did have this before and it was the seat warmer. I figured that out and told them to check it out. They disconnected it and it worked fine for 6 months and now it started in again.
I love my Blazer and don't want to part with it.
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Tuesday, July 28th, 2015 AT 2:16 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I'm sure if you are willing to pay the diagnostic time, the dealer can find the issue. You don't find these things through random guessing. There is a procedure to isolate parasitic battery drain circuit by circuit.
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Tuesday, July 28th, 2015 AT 2:23 AM

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