Guys, I just installed a GM alt on my Zuk and the Battery is not charging. Makes me wonder if my old Alt was bad since it wasn't charging either. The weird thing is that the neg battery cable is quite warm ??? Anyone have any ideas, I am in serious need of help. Gotta go to work this morning. Thanks!
Art, Is there an Autozone down your way? They can check the alt. Warm cable mean too much current which could be a shorted diode or reg. What voltage are you getting across the battery while the engine is runnig? Should be in the 14 volt area. Jim
edit- Warm cable could also be a loose connection. Check those too.
The warm negative cable could very well indicate too much resistance in it. Sometimes battery acid by capillary action creeps up inside it, under the insulation, then it corrodes in spots inside the insulation.
You should be able to run twice the starter current through that cable without it getting warm - if it isn't resistive.
Hey guys, thanks for all the help. I do believe it was a bad bround. Heck bad everything! I replaced all the positive and negative cables to and from the battery and alternator. Fired right up!! Thanks again!! [img]images/graemlins/40BEER.gif[/img]