Quote:
Originally Posted by Ronald29609
The in dash battery gauge on my 67 pickup works but only on discharge.
Can't figure it out. I know its charging because I checked with a meter 14.7v.
The truck starts every day without a problem.
Any ideas?
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Most likely you've lost the connection on one of the wires to the gauge. There are two wires that go to the gauge and they are both positive. I stress this because some guys think that one wire is positive and one is negative or ground.
Each wire has a small four amp fuse inline to protect the ammeter in case of a short or a high voltage surge. The first place to look is at the fuses and the easiest one to find is on the junction bolt on the right fender. The other one is usually near and below the left headlight in the harness. This is probably discussed in the thread above. Both wires run directly to the dash cluster to terminals 1 and 12 and there are copper strips to the gauge from there. It is common for these connections at the cluster to corrode and lose connectivity. so it may be a case of just cleaning the connections.