windshield defroster not working on 1998 Volvo S90

mist coming through vents, defroster not working

Asked by for the 1998 Volvo S90
1 answer
Are you getting enough airflow, but it's not clearing the windshield? Does the air smell "sweet" and is the engine loosing coolant? If so, you may have a leaking heater core. If the air flow is not right, ,then you may have an issue with the airflow controls.