- 1) Air that blows in smells wet, musty, or like mildew.
- 2) The defroster takes longer than usual to work, blows in grimy air or doesn't work at all.
- 3)The heating system only performs when driving and stops blowing when the vehicle is at idle.
- 4) Your heating system blows cold air.
- 5) The volume of air is unchanged at its highest setting.
- 1) Low antifreeze/water level in the radiator due to a leak in the cooling system.
- 2) The thermostat is broken and isn’t allowing the engine to properly warm up.
- 3) The blower fan isn’t working properly.
- 4) Coolant is contaminated with dirt or rust particles and is blocking the heating core from circulating air into the cabin properly.