i bought this 93 fullsize blazer about a month ago, first thing when i got home i tried out the 4wd. i put it in 4wd hi and pulled forward and the light come on for a sec and flickerd out. i checked my fuse and it was blowed. i installed another fuse while in 2wd and it didnt blow, when i shifted to 4wd hi and pulled forward it blew again. i was just wondering a starting point yall might recommend. I do have a alldata sub to the vehicle if anyone needs it btw!

 

here is what i found for ya