How do you remove a lower radiator hose?
Remove the lower radiator hose from the radiator by first loosening the clamp and then gently but firmly twisting the hose to ensure that it is not stuck on. Tip: Oftentimes the hose will stick as if it is glued in place. By twisting, you can break this bond and make it much easier to remove.
What’s the best way to replace a heater control valve?
Step 13: Refill the cooling system. Use a 50/50 mixture of antifreeze and distilled or demineralized water to refill the cooling system. Step 14: Bleed all the air out. To get all the air out of the cooling system, you will need to start the vehicle, turn the heater on high, and allow the vehicle to achieve normal operating temperature.
Where does the coolant go when the heater is turned on?
When the heater or defroster is turned on, warm engine coolant passes through the heater core. Here a fan forces air across the surface of the heater core and then into the passenger compartment where the warm air is felt.
Where are the heater control valves located in a car?
Some heater control valves will be located in the engine compartment at or near the passenger side firewall. Others are located behind the dashboard near the passenger footwell.
Difficulty
- Open the hood and locate the vehicle’s radiator.
- Place a drain pan under the radiator.
- Remove the lower radiator hose from the engine.
- Place the clamps over the hose ends.
- Refill radiator with a 50/50 mix of the recommended type of antifreeze and water.
- Leave the radiator cap off and start engine.
Do I need to drain the heating system to change a radiator?
If you are changing a couple of valves on a few radiators, it is probably best to drain the whole heating system down. However, if you are only updating one radiator you can change the radiator valve without fully draining the system and there are actually benefits of doing so.