Where is the return line on a car heater?
Where is the return line on a car heater?
Usually located inside the dashboard on the passenger side, there will be a valve controlled hose that regulates coolant going into the heater core. The other tube is the return line to get the coolant back to the cooling system. For this job, you’ll need a garden hose and running water.
What should I do if my heater core comes out?
Take care not to damage outlet port or you will have to replace the whole heater core. If the hose is old and caked onto the outlet port, you may have to replace the hose as removing it will likely damage the seal. Liquid will most likely come out as well so have the rags ready to clean up any spilled coolant. Step 3: Attach garden hose to outlet.
What happens when water comes out of the heater core?
When the water coming out of the heater core is clear like the water going in, the heater core has been flushed. It shouldn’t take too long as there isn’t much volume inside the heater core. If the flow coming out is restricted, there is likely a clog somewhere in the line and you’ll need to take a few extra steps to get it out.
Where does coolant go after going through the heater core?
The outlet hose will typically run straight to the radiator or cooling system reservoir to return the coolant after flowing through the heater core. Tip: If you are having trouble figuring out which is which, when the engine is hot, turn the heat up all the way.
Usually located inside the dashboard on the passenger side, there will be a valve controlled hose that regulates coolant going into the heater core. The other tube is the return line to get the coolant back to the cooling system. For this job, you’ll need a garden hose and running water.
What happens if you back flush your heater core?
If the heat in your vehicle doesn’t blow as hot as it used to, but your coolant is full, and leak free, then your heater core might be clogged. This video will show you how to back flush the heater core to clear it out and get it working again.
Take care not to damage outlet port or you will have to replace the whole heater core. If the hose is old and caked onto the outlet port, you may have to replace the hose as removing it will likely damage the seal. Liquid will most likely come out as well so have the rags ready to clean up any spilled coolant. Step 3: Attach garden hose to outlet.
The outlet hose will typically run straight to the radiator or cooling system reservoir to return the coolant after flowing through the heater core. Tip: If you are having trouble figuring out which is which, when the engine is hot, turn the heat up all the way.
