Ive had a number of electrical problems over the last year. Many have been fixed, but one problem I have is with the fans. They wont come on when the headlights are on, but lately they havnt been coming on at all. Today when switched the fans on it would kill the engine. So I thought my fan mod might be the problem so I removed it. Now the fans still dont come on and when I flip the headlights on the engine dies. Im not sure whats going on here but I would appreciate any help you guys might have.
Thanks
Ben

 

Just wondering if you every figured this out, I'm having a simmiler problem myself.

I believe it's a weak / old battery but I'm worried it could be the alternator.