I don't drive my Blazer more than once a week. Sometimes 2-3 weeks go by before I can take it for a drive. I have a weird issue where my battery is draining. It happened to me about a month ago. The battery that was in it was from the previous owner so I assumed it could have been bad. I took it in and tested it at the local Checker and it had no juice so I decided to just get a new one and see what happens. Well I got a couple of drives out of it and now it's been about 3 weeks since I've driven it. I got into it yesterday and sure enough completely dead - won't turn over or anything. What do you guys think could be causing this? The wiring looks shoddy to me anyways so my first instinct is to just buy a new wiring harness and redo everything myself but I figured I would see what you all thought first.