charging voltage
Thread Starter
Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
charging voltage
I have a 93 that often shows 14.3- 14.1 on the amp gauge it hardly ever gets below 13.7. is this normal? also the sys light flashes I guess I need to get the codes, the battery is new 
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Sounds like your new battery could be low. When installing a new battery, first put a charge on it. They sometimes lay around a parts store for some time before they are purchased.
Your alternator is fine.
Your alternator is fine.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
If your alternator is good, it sounds o. k., it should bring your new battery to a good charge level. When you first start up does your amp gauge read up around 14.5 and then drop back to the 14.0 after you run for a while?
Thread Starter
Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
C4 alternators are designed for 14.7 volts output, alternator cold and the voltage drops with increasing temperature to 13.7 volts. The dash voltmeter reads 0.3 volts low due to the voltage drop of 0.3 volts across the ignition switch contact.
