The heater was on and it only does it hear and there! I really notice it when it's a rainy day if that means anything! My temps though stay right where they always have been....it still doing it so maybe I'll take it into the dealer tomorrow and see what they have to say!!There's a few possible problems. Is the A/C on? It might be something defective there. Another problem that's not uncommon is the fan looses the low and medium speed. As a result, things overheat and it has to go to "high" to get things cooled.
The A/C may be kicking in to dry the air. If the A/C has a problem, it can cause the pressure to jump high (or at least think it does) and cause the fan to go into "jet mode".The heater was on and it only does it hear and there! I really notice it when it's a rainy day if that means anything! My temps though stay right where they always have been...