1998 CHEVROLET BLAZER BATTERY DRAIN

  • Tiny
  • mailibu1955
  • 1998 Chevrolet Blazer
  • 165,000 miles

After sitting for about 4 to 7 days the battery is run down. I'm sure there is no lights on. Please help. Thanks, Bob Additional info. There is a spark when the neg. Battery cable is put back on. What ever it is it must be interesting repair to this model Chev. As I said there is no lights on.

Friday, May 31st, 2013 AT 5:02 PM

26 Answers

  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

PUT AN AMP METER BETWEEN THE BATTERY POS AND CABLE, START PULLING FUSES TO SEE WHICH CIRCUIT IS DRAWING EXCESS POWER.

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Sunday, June 2nd, 2013 AT 5:08 AM
  • Tiny
  • mailibu1955
  • Member

I don't have a amp meter. I have a dim light showing on my test light. I secured the door dome light switch. Each fuse was pulled one at a time(under the hood and from the dash panel). The light stayed dime. I do get a sizable spark when the neg. Cable is re attached. Thanks for your help.

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Tuesday, June 4th, 2013 AT 3:45 PM
  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

Invest in a multi meter they are not expensive and this will help with all manner of electrical problems you encounter with the car.

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Wednesday, June 5th, 2013 AT 3:43 AM
  • Tiny
  • mailibu1955
  • Member

Thanks for the info. I'll get one this week. By the I'm from Portland, Maine.

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Wednesday, June 5th, 2013 AT 4:37 PM
  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

OK, if you get stuck, post again.

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Thursday, June 6th, 2013 AT 3:00 AM
  • Tiny
  • mailibu1955
  • Member

Based on what I've explained do you have any suggestions? I just believe I'm missing something simple.

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Thursday, June 6th, 2013 AT 4:46 PM
  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

You may have a faulty alternator, do the amp meter test and remove the alternator feed wire, a blown diode can also cause this.

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Friday, June 7th, 2013 AT 3:35 PM
  • Tiny
  • mailibu1955
  • Member

I'm excited about this as I think you are on to something, Thanks

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Friday, June 7th, 2013 AT 4:40 PM
  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

Ok

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Friday, June 7th, 2013 AT 10:06 PM
  • Tiny
  • mailibu1955
  • Member

I really believed you were on to something. I disconnected everything attached to the alternator, the light remains on.I've ordered an amp meter on line and should be receiving it soon. In the meantime while I wait for the meter, if maybe you have one more suggestion it would be great. Thanks

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Saturday, June 8th, 2013 AT 1:58 PM

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