Car heat wont work. What is the cause of this? How do I fix this?

Asked by Jan 22, 2014 at 06:15 PM about the 1996 Mercury Villager 3 Dr GS Passenger Van

Question type: Maintenance & Repair

The heat is turned on but there is no warm/hot air coming thru the vents. It is ice cold. How do address this problem. Where do I look for the problem (hood, dashboard, etc.) and what might it possible be the cause of this.

2 Answers

21,135

Low on antifreeze, leaking antifreeze or blend door in dash not switching from cold to hot.

5 of 5 people found this helpful.
20

does the heater work and higher rpm on the highway then blow cold in town or idle??--if so--the heater is air locked because the big gallon coolant tank over on the side is dry and or clogged. That is not an overflow for overheating--the engine draws from it and flows back as the engine rpm changes. If it is dry and or clogged THE ENGINE IS SUCKING AIR. I cleaned mine and heater works perfect even before warm--and at idle.

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