my car heaters have stopped working

If the thermostat is jammed open causing the car to overcool there may not be sufficient temperature in the coolant to provide sufficient hot air. The heater in your car truck or SUV depends on several components in order to work pro.

How To Fix A Car With No Heat Easy Youtube

The system will need to be bled.

. If your coolantantifreeze levels are low the easy fix is to check and refill it. The blower motor resistor controls the fan speed of your blower motor. Air inside the cooling system.

Thankfully installing a new blower motor resistor is also typically a simple repair. A valve or switch could be faulty or the heater core could be a clogged. Wait until the engine has cooled down and check the coolant level topping it up if needed.

There are also a few valves that could block. Air bubbles in the radiator can prevent the proper flow of coolant and affect the heating system and the engine itself. Let the vehicle cool.

A heater can stop working for a number of reasons including. These are the 7 common reasons your car heater isnt working. This situation can happen if someone opened the radiator or if a leak is allowing air to enter.

The thermostat is responsible for ensuring the engine operates at the correct temperature and using the coolant to adjust the levels. If the problem stems from the cooling system the most common causes are mechanical electrical or suction related. 1 Year12K Mile Warranty.

Car Heater Thermostat is Faulty. When your heater blows warm air but you cant adjust the speed of the fan its likely your blower motor resistor. Also a bad head gasket can cause air to enter the radiator.

No Need to Step Outside. Ad All Makes Models. There are some very thin tubes in the heater matrix and if it becomes blocked the coolant may.

The thermostat in your car gauges its temperature and helps to regulate engine operation based on feedback. Remove the cap and place a funnel into the overflow reservoir opening or the radiator opening. You should also bear in mind that these causes can vary.

Available 7 Days a Week. Car heater systems that simply dont work at all. Across almost all models of cars and trucks the number one cause for a vehicles heater to stop working is a faulty or broken thermostat.

Test or replace the thermostat as mentioned above if you suspect this to be the cause. Heater Symptom 2 My Cars Heater Speed Wont Change. The first thing to do if youre having issues with your car heater is to check your engine coolant.

Certified Mechanics Fix Your Car in Driveway. Make sure to do this when your engine has cooled down to avoid being burned. You should top up the coolant to the appropriate level.

The problem can have a variety of different causes including the following. If your coolant level is too low there wont be enough hot liquid in the heater core resulting in cold air. If your car heater is not working at all youre looking at a faulty blower motor or an issue stopping power from reaching the.

Faulty thermostats are the most common reason for a failing car heater. A car heater that has stopped working can make a cold day even worse. A clogged heater core.

A bad thermostat that isnt allowing the engine to properly warm up. Add new coolant until the. If its faulty or broken it affects the heating system as well as your cars performance.

A blower fan that isnt working properly. A low antifreezewater level in the radiator due to a leak in the cooling system. Coolant that contains rust particles or becomes otherwise contaminated and is blocking.

Car Heating System How It Works