olehippy Posted August 10, 2007 Share Posted August 10, 2007 I'm having trouble with the voltage on my 86 GL.When it's started the voltage gauge will be at almost 18 then after a bit (driving about 10 min.) will drop down to about 12.This keeps going on,from 18 back down to around 12 then back to 18. Will this burn something up ? What could be causing this ? Thanks Quote Link to comment Share on other sites More sharing options...
nipper Posted August 10, 2007 Share Posted August 10, 2007 Yes this can burn something up, it can fry the battery , burn out bulbs damage electronics. You need an altenator. nipper Quote Link to comment Share on other sites More sharing options...
Virrdog Posted August 10, 2007 Share Posted August 10, 2007 Usually burns the alternator up. Then the subsequent driving on battery power drains it pretty good. I went through this multiple times in my Brat. Quote Link to comment Share on other sites More sharing options...
olehippy Posted August 10, 2007 Author Share Posted August 10, 2007 Thank you!! You was right on,replaced it and fired it up,voltage is right where it's suppose to be and stays there.. Great place you have here,, Thanks men:headbang: Quote Link to comment Share on other sites More sharing options...
Milemaker13 Posted August 10, 2007 Share Posted August 10, 2007 I have the very same issue (as well as a few others!). I am going to pop my new (used from a board member-$25!) alt in this afternoon when I put a pin on my crank pully. It spun off twice yesterday:dead: Quote Link to comment Share on other sites More sharing options...
Milemaker13 Posted August 15, 2007 Share Posted August 15, 2007 New (used) alt. installed- Voltage OK. It was definatly getting high (18V) volts when it was spinnin fast, and low (10V) volts when at idle. We'll see how long this one goes for!!! If anyone has another cheap spare for me, let me know;) Quote Link to comment Share on other sites More sharing options...
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