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Author Topic:   Battery drain problems
pmhvps
Gearhead

Posts: 515
From: Lowville,Ontario,Canada
Registered: Oct 2003

posted 03-18-2005 12:39 PM     Click Here to See the Profile for pmhvps   Click Here to Email pmhvps     Edit/Delete Message   Reply w/Quote
Hi, all. I have a big battery drain when I turn the headlights on. I know I have a short or something. Would anyone know where to start? The car is a 1980 Fairmont.
Thanks, Mike.

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MLariviere
Moderator

Posts: 4065
From: Biddeford,Me.USA
Registered: May 99

posted 03-21-2005 09:29 PM     Click Here to See the Profile for MLariviere   Click Here to Email MLariviere     Edit/Delete Message   Reply w/Quote
Does that have a headlight dimmer on the floor? If it does,that could be it. Those switches often go bad,because they are sometimes wet.

You could disconnect the neg on the battery,and put a multitester between the cable and the post. That will tell if there is an amp draw. You then start pulling out fuses,one at a time and look for changes it the tester. That will tell you what circuit is in trouble. You may want to pull the radio out first because newer ones store presets,and use a little current.

[This message has been edited by MLariviere (edited 03-21-2005).]

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pmhvps
Gearhead

Posts: 515
From: Lowville,Ontario,Canada
Registered: Oct 2003

posted 03-22-2005 06:59 AM     Click Here to See the Profile for pmhvps   Click Here to Email pmhvps     Edit/Delete Message   Reply w/Quote
Thanks,that will give me something to start with.
Mike.

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