Living in AZ it gets hot, batteries have a much higher mortality than in other states. The Nature of the Beast. This problem has me wondering, just noticd it on Saturday.
The Car, 2006 Grand Prix (non Turbo) 3.8 liter
When it's hot outside (105+) when the car is started the AC does not get cool, the vents blow hot air, the blower fan will (if set on high) vary between nearly off to full power on it's own. As I scanned the guages (this may be telling) the ammeter (digital read out) voltage varies from 12.6 vlts to as high as 14.7 volts. This all done while sitting at idle. When you start diving it seems to all clear up. My first thought was the battery, maybe a weak cell. Then I thought it could be the alternator or a weak ground connection. Having the battery tested tomorrow, was wondering if anyone wants to try and see if they can grab the brass ring,
Thanks in advance....