A/C doesn't blow on high
I have a 2001 GMC Sierra 1500, I replaced the A/C blower motor and resistor. Now the fan will not run on level 5. 1-4 blow air but at a very reduced rate. At first I thought I was getting bad a bad resistor but I have exchanged it twice and it's still not blowing correctly. I don't think I got 3 bad resistors.