My 01 blazer just recently went into limp mode. I changed the shift solenoid and the pin inside my tranny. Still in limp mode. It didn't start doing it until I after I got stuck in a ditch. But I have a tranny from a 00 blazer. Will it fit my 01?

 

Welcome to the forum. Yes they will interchange as long as they are both for 2wd or 4wd, can’t swap a 2wd into a 4wd or the other way around without disassembling both transmissions. Have you checked the transmission fuse? What solenoid did you replace, what code is it setting?
Brad