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

Alternator Issues

Old May 30, 2007 | 08:10 AM
  #1  
Black86IROC817's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2007
Posts: 29
Likes: 0
From: Texas
Car: 1986 Z-28 IROC
Engine: LG4 - Holley 600, Edelbrock Intake
Transmission: 700R4
Axle/Gears: 3.73 Posi
Alternator Issues

Hopefully someone has experienced this one before. Here is the symptoms: Voltage gauge is always below 12, turn signals don't work if the head-lights are on, If I turn on anything (ex. stereo, defrost) the voltage gauge drops to the red. At higher RPM's it does a little better, that makes sense due to the alternator being spun faster. Here is what is stumping me, the battery never dies. I could idle the car all day at 800 RPM's with every gadget and light I have turned on, shut the car off, and the battery is still fully charged. This dosen't make any sense to me, I would normally write this off as a bad voltage gauge, but I still have the issue with the turn signals. Someone told me that I could put a smaller pully on the alternator, that sounds like a bad idea to me though, I figure it will wear it out sooner. The alternator that is on it is three years old, but the car was garaged for two of those years. If anyone has any ideas it would greatly be appreciated! Thanks, J...
Reply
Old Jun 1, 2007 | 08:20 AM
  #2  
NINÅ's Avatar
Supreme Member
 
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56

Connect a test meter to your bat.
With the engine running
and your RPM high enuff so your alt is on,
turn on all your headlights. If the bat voltage is 12
or better you have a bad connection in the wiring.
.
Happy Racing !

|__|==(_)==|__|
— If people drove any slower
they’d be going backwards —

.

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
Dec 10, 2019 07:07 PM
TheTraut88
TPI
6
Sep 11, 2015 05:16 AM
64goatman
Cooling
2
Sep 9, 2015 01:09 PM
383cam
Electronics
5
Sep 9, 2015 06:01 AM
Hotrodboba400
Firebirds for Sale
0
Sep 2, 2015 07:28 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 07:39 AM.