I did some searching and found no answer so here goes. My blower for the heater doesn't seem to blow very hard even on high. I put a new blower in last winter from checker auto parts cause my other one squealed and I seem to remember it working good when I put the new one in. I did notice this summer when I ran the A/C that it didn't blow overly hard but now that its real cold out I know its not blowing hard enough. When its on high and on the defrosters it blows ok but not real hard but when you switch to the dash vents it barely blows out of the four vents. Do you think I have another bad blower motor or could it be a wiring or maybe a ground issue? Is there a way to know how hard it should blow? Is there a more powerful blower motor I could swap in?