Common questions

Where is the heater located on a Chevy Blazer?

Where is the heater located on a Chevy Blazer?

The cabin heater in your vehicle produces heat from a heater core. The heater core is a small radiator, located under the dashboard of the vehicle and consists of conductive aluminium or brass tubing with cooling fins to increase surface area. Hot coolant passing through the heater core gives off heat before returning to the engine cooling circuit.

What should I do if my Chevy Blazer is not getting heat?

If you are not getting heat and the engine IS reaching operating temp then check the heater core by touching both heater hoses; they should both be hot. If one is hot and the other is cooler, then the core is plugged up.

Why did my 99 Blazer AC stop working?

99 Blazer – AC stopped working in 2007 so took to a shop a few times and was told the compressor was bad because it would not hold freeon. Another told me I had a leak somewhere. However, once freeon is added it is cold but gone the next day.

Where is the actuator on a hot air heater?

Look for your actuator it’s usually behind the glove box just to the left or on the upper right side of the box. Turn your temp back and forth. Your checking to see if your actuator moves. Try placing your hand on it to feel it move or listen closely to hear it move. If it don’t move then that’s your problem.

The cabin heater in your vehicle produces heat from a heater core. The heater core is a small radiator, located under the dashboard of the vehicle and consists of conductive aluminium or brass tubing with cooling fins to increase surface area. Hot coolant passing through the heater core gives off heat before returning to the engine cooling circuit.

If you are not getting heat and the engine IS reaching operating temp then check the heater core by touching both heater hoses; they should both be hot. If one is hot and the other is cooler, then the core is plugged up.

99 Blazer – AC stopped working in 2007 so took to a shop a few times and was told the compressor was bad because it would not hold freeon. Another told me I had a leak somewhere. However, once freeon is added it is cold but gone the next day.

Look for your actuator it’s usually behind the glove box just to the left or on the upper right side of the box. Turn your temp back and forth. Your checking to see if your actuator moves. Try placing your hand on it to feel it move or listen closely to hear it move. If it don’t move then that’s your problem.

Why does my car heater keep blowing hot air?

Hot coolant passing through the heater core gives off heat before returning to the engine cooling circuit. The fan for the vehicle’s ventilation system forces air through the heater core to transfer heat from the coolant to the cabin air, which is directed into the vehicle through the vents.

Why is my Chevy Blazer not blowing hot air?

If there is a lack of hot coolant running through the heater core or less common, a pocket of air trapped in your heater core, the vents will not produce hot air. It is crucial that you immediately check the level of the antifreeze in your radiator and fill it until it is full.

Where is the heater core in a car?

Heater cores are typically situated directly in the back of dashboards. If your car is not blowing warm air into the cabin and the coolant level is fine, then you could have an issue with your heater core. If you suspect that something is amiss with your car’s heater core, watch for these signs:

What does it mean when your car heater is blowing hot air?

The heater is not blowing hot air either. When a car overheats, it is an indication that there is a problem with the engine cooling system. The purpose of the engine cooling system is to keep the engine at a temperature that is consistent.

How does a Chevy Silverado engine heater work?

Some of this coolant is diverted from the cooling system into a heater core. A fan then blows on the core to blow warm into the air into the cabin. Before you go replacing a heating system in your Silverado, however, troubleshoot the heater in your truck. Turn the engine on and allow the engine to warm up to normal operating temperature.

How can I tell if my Chevy Silverado heater is running?

Open the hood and place your hand over the upper radiator hose. Check to see if it is warm. If it is, then the coolant is flowing through the cooling system as it should. Check the radiator to heater core hose.

Why is my car heater not blowing heat?

If one is hot and the other not then no coolant through the core. Thus core plugged. If there was no heat at all and the temp gauge was reading really low, then possibly a thermostat stuck open. How many miles on the vehicle?

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Ruth Doyle