Young gun
Newbie
Hey yall i have a 1978 Blazer with a 350 in it. I'm having some problems with the charging system at idle the volt meter reads 9.5 volts from the alternator but during acceleration the volt meter reads 14 volts ive replaced the alternator twice (both times had them tested out of the truck and both were working fine) and the battery once (also had it checked and it would hold a charge and was fine) it used to read about 13 volts at idle about 2 weeks ago and then started reading low without me touching anything. Any ideas? Thank you (Dalton)