In my Blazer when I turn the heater fan on 3(max) I do get some air but not as much as other S-series that I`ve been in. Also the first speed of the fan does not work would this be the switch itself or the motor under the hood on the passenger side? with the 4 wires coming out of it.Is there any way to test this or simply replace it? And seeing that the cold here in New Brunswick sometimes dropes to -35 without the wind, I really do need the heat.
I`d rather push a Chev than drive a Ford
Hachey, 88 Blazer 4x4