Brian Bobb
Well-Known Member
Last week, this truck just stayed like that and cut off. It has a CAT 3126 engine. When the ignition is on, the battery voltmeter won't move nor the other lights would come on when ignition is on. Checked the power and ground, everything seems ok. The 25B wire on the instrument panel glows when the test lamp is on it. So you put a ground on it, low and behold, the engine started but you can't leave it on for long cause it started to burn the printed circuit. What is causing that? Is it a sensor that is making it do that?