The motor in my moms 99 GMC Jimmy (4.3L) overheated and blew so we bought another used 99 Jimmy motor from a junk yard and I installed it. Upon first crank the motor started and ran for +- 10 minutes. I shut it off and tried restarting. It will catch and shut right off now. Upon checking fuses the Crank, B/U, and Oxysen fuses are blown and continue to blow when replaced. What should I check to fix the problem? Thanks!
On a side note I am sick and tired of working on these 4.3L motors and I went looking for a new truck today. Unfortunately I still have to fix my moms...