Ok guys ever since I bought my 03 RCSB the battery keeps going dead. I have a obvious ground fault somewhere.. It will take several days of sitting to go dead enough it wont crack but its starting to be a pain in the ***. Its not the alternator, i've checked it, its charging. Ive took all the radio and non OEM speakers out thinking someone messed the wiring up and still no luck. Whats the best way to troubleshoot this??

 

MegOhmMeter, you can buy one cheap at an autoparts store or someplace like Sears in the tools section. I think i bought my cheap one at PepBoys

 

I started pulling fuses but thats going to take forever.

 

Unhook either battery terminal from the battery. Connect a test light from the terminal you just unhook on one end, and hook the other end to the cable. If there is a draw, it will light up. Pull fuses until the light goes out. You have to have the dome light, hood light, parking, headlights, and radio off (basically any accessories) for it to work properly.

 

Thanks for the info! The truck was in a wreck on the front passenger side and i believe its been doing it ever since. It set off the drivers side airbag. I havent replaced the airbag or front sensors. Would this have anything to do with it?