03 gmc 2500HD4x4 LB7 bought used 1 yr ago
Had a no start today, 5 degrees out and windchill of -15. truck was plugged in for about an hour, but batteries did not have enough juice.
here is the problem
Put 2 new matching batteries in, started out to return the cores and could not get more than 2000rpm and check engine came on. Dropped the cores off and on the way home power returned ran like always, but still have a light.
can't get it scanned till mon, to see what is stored.
has anyone heard of a problem when disconnecting both batteries at the same time with it going into default and setting a light?