bill4103 wrote:
Ok to out alternator and had it checked. It showed by bad so i said give me a new one. They had two different ones . a 90 amp and a 135 amp . My thinking is bigger is better, Got the new one in still have light on the dash and getting a reading of 18 volts at the engine battery and 15 volts at the coach batteries. dont know what to do next,
I stated you have an Alternator SYSTEM problem. NOT, you had a bad Alternator. Obviously you must have a separate voltage regulator OR your new Alternator is bad or hooked up wrong. Some systems have a separate Voltage regulator. Doug