C5 Voltage Display
Thread Starter
5th Gear
Joined: Jun 2007
Posts: 5
Likes: 0
From: Vancouver Washington
C5 Voltage Display
As I'am sure you all know, the C5 displays instant alternator voltages. Mine reads any were between 13.2 volts, as high as 14.2 volts. Is this normal? I was always told that normally an alternator kicks out 14.7 volts. I have a 1998 convertible with 24000 miles on it. I have only had this beautiful baby since end of June. Still learning. Does this sound like a possible alternator or battery issue. Thank you for any input.
Last edited by Howards 98 Vette; Sep 13, 2007 at 11:16 PM.
Racer
Joined: Nov 2006
Posts: 491
Likes: 5
From: Tampa Bay Area, U.S.A. (Zombie Nation)
You might want to mention what rpm and electrical load goes along with the voltages you've given. Low rpm and high electrical load makes it more difficult for an alternator to give a good charging voltage, as you probably know. The voltages you given don't sound to far off to me provided they're being observed at different rpm's and electrical loads.
Thread Starter
5th Gear
Joined: Jun 2007
Posts: 5
Likes: 0
From: Vancouver Washington
C5 Voltage
These voltages seem to vary all over the place even during the day when I'am not running any lights, just stereo and running lights. Today example; aprox. 1900 rpms running just stereo and running lights. My reading was 13.2 volts.
