The dash voltage gauge will read between 10-14 volts unpredictably. When it reads low, the fuel gauge reads low, the oil pressure reads lower, the temp higher. Sometimes this happens while driving; at the start of the trip, the gauge reads a normal 14 volts, but drops after a while.
I'm suspecting a relation to the engine compartment temp, the higher the ambient temp, the lower the reading on the volt gauge. I see no effect on other elec. components, no dimming of lights etc.
Could this be a bad connection at the fuse block? Does the connector to the fuse block pull off from the engine compartment side of the firewall?
thanks DH