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Old 10-09-2013, 10:56 PM   #9
71swb4x4
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Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
Re: Starter of 1972 Blazer

It sounds like you have an electrical draw. To find the draw do this:

Remove the negative cable from the battery. Put a test light to the negative cable and then to the negative post on the battery. The test light will light up if you have a draw. Now go under your dash and start pulling and replacing fuses. When you pull the fuse that is on the circuit that is draining your battery your test light will go off.
For example if your horn circuit is draining your battery, when you pull the horn fuse the test light will go out because the draw will be gone.
Once you know which circuit is draining the battery you can check the things on the circuit to figure out what the problem is.

As you test things and have questions post on this board and we will help.
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