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03-20-2013, 06:03 PM
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#1 |
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Registered User
Join Date: Sep 2010
Location: Marble Falls, TX
Posts: 1,575
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Where is the voltage regulator?
Hey guys,
Been having some electrical problems lately. Headlights dim and get bright, volt meter jumping all over the place, and if it's related my thermostat is stuck on cold no matter what. Everything worked before the new engine. After reading around on here I'm thinking it's my voltage regulator. I have a 3 wire alternator so it's external, the only problem? I don't know where it's at. Does anyone know where the external voltage regulators are so I can replace it? Thanks.
__________________
Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9 |
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03-20-2013, 06:46 PM
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#2 |
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Registered User
Join Date: Mar 2012
Location: stafford springs ct
Posts: 149
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Re: Where is the voltage regulator?
is this on the 77 in you're sig? if so the voltage reg is internal, there is a power wire and another plug with two wires together. is this what you mean by three wire?
__________________
1977 srw cc lb 396/700r/4:11's/6'' bds lift/ 35's. sold 1986 suburban 350/700r/3:73's 31's: parted out. 1980 silverado swb 5.3/700r/ 2'' drop/ daily driver. sold 1985 c10 long bed 5.3/700r/2'' drop/17" wheels/ daily driver. sold 1970 c10 long bed-new project! getting ready for the 6.0 |
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03-20-2013, 08:43 PM
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#3 | |
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Registered User
Join Date: Sep 2010
Location: Marble Falls, TX
Posts: 1,575
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Re: Where is the voltage regulator?
Quote:
__________________
Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9 |
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03-20-2013, 09:28 PM
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#4 | |
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Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: Where is the voltage regulator?
Quote:
  You have an internally regulated alternator.
__________________
Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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03-20-2013, 09:29 PM
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#5 | |
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Registered User
Join Date: Sep 2010
Location: Marble Falls, TX
Posts: 1,575
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Re: Where is the voltage regulator?
Quote:
__________________
Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9 |
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03-20-2013, 10:00 PM
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#6 |
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Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: Where is the voltage regulator?
It does sound like the regulator. Just to be thorough check the belt too and make sure it isn't slipping.
Any parts place should be able to test the alternator if you take it in.
__________________
Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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03-20-2013, 10:02 PM
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#7 |
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Registered User
Join Date: May 2009
Location: Pinehurst, Idaho
Posts: 311
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Re: Where is the voltage regulator?
When you replaced the engine did you make sure all of the grounds got replaced right?
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03-20-2013, 10:17 PM
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#8 | |
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Registered User
Join Date: Sep 2010
Location: Marble Falls, TX
Posts: 1,575
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Re: Where is the voltage regulator?
Quote:
__________________
Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9 |
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03-21-2013, 12:36 AM
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#9 |
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Registered User
Join Date: Nov 2011
Location: Sheffield, ALA
Posts: 2,471
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Re: Where is the voltage regulator?
wouldn't surprise me if the alternator is bad.
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