2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

volts

Thread Tools
 
Search this Thread
 
Old 11-10-09, 03:12 PM
  #1  
Rotary Enthusiast

Thread Starter
iTrader: (9)
 
ICEY?'s Avatar
 
Join Date: Oct 2006
Location: Biloxi, MS
Posts: 995
Likes: 0
Received 0 Likes on 0 Posts
volts

Ok... so recently my car has been dropping volts like crazy.


when i turn my headlights on the volts drop and also when i turn my music up louder it drops.


but when i turn the AC on my volts rise slightly.


but when the car is actualy moving the volts seems to be stable...



any help at all would be much apreceated.. im jsut tired of my car sounding like its about to dye and rocking back and fourth like its got a v8 in it or something...




thanks guys!!!
Old 11-10-09, 03:19 PM
  #2  
Full Member
 
fc3si's Avatar
 
Join Date: Oct 2009
Location: Sedona, AZ
Posts: 67
Likes: 0
Received 0 Likes on 0 Posts
i have a similar problem with my FC when i hit the brakes my lights dim.

and my volt gauge reads like 12.2

i'm thinking alternator or voltage reg. which i'm sure is built into the alternator.

when i test @ the terminals at idle i'm around 12.5
Old 11-10-09, 04:23 PM
  #3  
Clean.

iTrader: (1)
 
ericgrau's Avatar
 
Join Date: Mar 2005
Location: Huntington Beach, CA
Posts: 2,521
Received 2 Likes on 2 Posts
Weak alternator and/or battery. An auto parts store will test both for free, often with them still in your car. If it's a bad alternator be sure to save the warranty stuff on the replacement, since a lot of them tend to fail quickly. Or it might last a long time, who knows.
Old 11-10-09, 08:54 PM
  #4  
Now With 10th AE Fun!

iTrader: (1)
 
1SWEET7's Avatar
 
Join Date: Jun 2005
Location: CA
Posts: 1,869
Likes: 0
Received 0 Likes on 0 Posts
Check the voltage at the battery at idle. If it is less than 13v then your alternator isn't putting enough out and will fail eventually. Get a re manufactured higher output alternator, or check on here for some of the other alternators like the Taurus that you can use.
Old 11-11-09, 11:06 AM
  #5  
Driving RX7's since 1979

iTrader: (43)
 
HOZZMANRX7's Avatar
 
Join Date: Aug 2001
Location: So Cal where the OC/LA/SB counties meet
Posts: 6,096
Likes: 0
Received 8 Likes on 8 Posts
Or it could just be your alternator isn't getting enough rpm's at idle. Try using a smaller alternator pully or raise the idle.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
imitek
3rd Generation Specific (1993-2002)
9
10-18-15 03:35 PM
FC3S Timmy
2nd Generation Specific (1986-1992)
16
10-03-15 01:08 AM
astrum
2nd Generation Specific (1986-1992)
5
09-07-15 11:41 PM
The1Sun
1st Generation Specific (1979-1985)
0
09-07-15 10:21 PM



Quick Reply: volts



All times are GMT -5. The time now is 06:25 AM.