Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Alternator voltage regulator bad?

Thread Tools
 
Search this Thread
 
Old 06-17-2013, 10:19 AM
  #1  
Junior Member

Thread Starter
 
jbradhill's Avatar
 
Join Date: Nov 2009
Location: Newport News, VA
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Car: 1986 Camaro IROC Z28
Engine: 383 SBC
Transmission: T56
Axle/Gears: 3.75 LS
Alternator voltage regulator bad?

I replaced my 3-wire alternator which worked fine for ~1 day. The dash gauge showed that it was charging and a slight movement on the gauge as the motor reved. Then noticed the dash gauge was reading ~8 volts (right above the "red" lower limit on the guage.

Checked and found that the sensing wire had come disconnected. I have a battery kill switch, but forgot that the sensing wire was run directly to the battery. So I tried to reconnect and accidentally shorted betwee the alt case and connector and get a spark. .... disconnected the sensing wire at the battery, reconnected sensing wire, reconnected battery and now, I am still getting ~8 volts.

How can I determine if the voltage regulator got fried by my mistake?

Thanks! Brad
Old 06-17-2013, 10:39 AM
  #2  
Supreme Member

 
midias's Avatar
 
Join Date: Oct 2004
Location: Henrietta NY
Posts: 4,370
Received 189 Likes on 149 Posts
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Alternator voltage regulator bad?

Start the car and measure with a multi meter.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cornholio7979
TPI
4
09-20-2018 02:31 AM
GTAman
TPI
26
09-21-2015 09:57 AM
mike_c
TPI
4
08-27-2015 04:32 PM
eightsixseven
Tech / General Engine
1
08-14-2015 03:09 PM



Quick Reply: Alternator voltage regulator bad?



All times are GMT -5. The time now is 08:37 PM.