:mad: the fan in my 01 is not blowing hard enough. It works on every speed but will not circulate enough air to cool down the cab. Any idea's on what could be wrong ?

Possibly the cabin filters are plugged. Check those first!:)

:mad: the fan in my 01 is not blowing hard enough. It works on every speed but will not circulate enough air to cool down the cab. Any idea's on what could be wrong ?

Need to tip better.... cabin filter plugged.......

You can do a search and see how to remove them, my 01' has 4 screws holding up the plastic piece passenger foot area, 2 passenger foot area, 1 trans hump PIA to get to and 1 closer to the driver center side. 7mm or 9/32, 1/4 deep socket worked best for me. When I get around to it i'll post my dirty azz pics of the filters. Only 40 K on the truck and they were nasty.

had the same problem on my 02, new cabin filters did the trick. there are two filters in there. good luck

in what year did they stop using cabin filters?

thanks to all. cabin filters was the problem. they were fully pluged.