I hope ya'll can help me with this one, any help will be appreciated. Generator on my truck isn't keeping the battery up. The ammeter shows a slight discharge while the truck is running. I just got this truck a few months ago and the previous owner had a new voltage regulator, generator and wiring harnes put in. When I disconnect the BAT wire from the regulator and strike it against a ground while the engine is running, there's a pretty big spark. Multi-meter shows generator is working but juice isn't going to battery. Also, gas gauge needle jumps below E when the ignition switch is turned on. With the regulator cover off, all three contact points remain closed. Schematic shows wiring correct to regulator. Any help appreciated, Jacques