I bought a 1998 480. The cab airflow seems weak. I barely feel any air from the right hand vents and very low flow from the left vents. Overhead vents have flow though not alot.

Is this a common problem? The cab filter is clean. Seems like pretty good air in the overhead storage cupboard. The fan runs on all three speed options. It is just not real high on high setting.

The air is also not cool, but I think this is a seperate problem?