possible bad alt.
05-31-2003, 12:39 AM
#1
Junior Member
Thread Starter
Join Date: Sep 2002
Posts: 93
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 Camaro
Engine: 383
Transmission: 700r4
possible bad alt.
I was scanning my car tonight and when I go into WOT the voltage drops to 11 volts. Does this mean that my alternator is bad and that i need to replace it. During normal operation the voltage stays at 13.5 volts.
05-31-2003, 05:15 AM
#2
Supreme Member
Join Date: Aug 2001
Location: Warrington, PA USA
Posts: 1,896
Likes: 0
Received 1 Like
on
1 Post
Car: "02 z-28
Engine: LS-1
Transmission: 4L60E
Most likely the brushes are worn, or the brush holder is burnt or both. Average output voltage wise should be 14-15 volts a little off idle. I have rebuilt many over the years and generally when you see diminishing output as rpm's go up it's a brush issue. Rarely does the rectifier pack or voltage regulator fail. www.alternatorparts.com sells overhaul parts, and if you are moderately handy and can use a soldering iron you can service these units for a fraction of the cost of replacement. Places like NAPA generally sell service parts as well.
Thread
Thread Starter
Forum
Replies
Last Post