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Strange voltage issue

Old Jun 18, 2006 | 04:22 PM
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Default Strange voltage issue

start a couple weeks ago. it stays down in the orange part of the voltage guage, right above the 8 i believe. i replaced the alternator, still does it, i did charge the battery when i put the alternator in and it was fine for a lil while, then went back to doing what it was doing. im unsure about it being the battery since i tried 2 other known good batteries and it does the same thing. im at a loss of what to check next. the lights have never dimmed on me or anything, never tried to die, just reading really low. it used to read above the 13 almost at the next line.
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Old Jun 18, 2006 | 04:41 PM
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is the little wire that goes to the top of the alternator still in good condition?
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Old Jun 18, 2006 | 06:58 PM
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talking about the one that gets bolted on and not the plug right? yes it seems to be in good condition.
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Old Jun 18, 2006 | 07:27 PM
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bad gauge, maybe?
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Old Jun 18, 2006 | 07:38 PM
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thats what i thought/was hoping, but it finally drained one battery enough it wouldnt start, so there is a problem somewhere.
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Old Jun 18, 2006 | 08:38 PM
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That much of a drain should be obvious.

Check for a bum trunk light switch, or a jammed cigarette lighter.

Also, recheck all your grounds.
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Old Jun 18, 2006 | 09:58 PM
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make sure the exciter wire on the alternator is plugged in good..it's the small 1 wire connection on top of the alternator
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Old Jun 19, 2006 | 02:51 AM
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If it drained a battery overnite you have a load when there shouldn't be one. Use a DVM to check battery voltage as you pull fuses till the battery voltage jumps up to over 12VDC. When it does you only have to troubleshoot that circuit.

Last edited by eallanboggs; Jun 19, 2006 at 03:08 AM.
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