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Which heater core hose goes to the water pump?
The upper radiator hose is connected to the thermostat housing and to the radiator. From the bottom of the radiator, is the lower radiator hose that is directed to the water pump.
Where does the heater core connect to?
Two hoses connect to the heater core — one hose is tasked with transporting hot coolant from the water pump to the heater core. The second hose returns the coolant to the top of the engine. These hose connections are usually found on the passenger side of the engine firewall, but may also be found near the middle.
Where does the heat that warms up the passenger compartment of a vehicle come from?
Hot coolant from the vehicle’s engine is passed through a winding tube of the core, a heat exchanger between coolant and cabin air. Fins attached to the core tubes serve to increase surface area for heat transfer to air that is forced past them by a fan, thereby heating the passenger compartment.
How do I know if I have a heater core problem?
There are several telltale signs that you’re experiencing a heater core problem: 1. You have little or no heat inside your car Your vehicle is running fine, with the temperature gauge reading normal and no other cooling system problems. But when you turn on the heat, it never warms up.
Where is the heater core located on a Toyota Corolla?
Buried deep within your dashboard, the heater core requires the disassembly of several other in-dash systems before you can access it and make the necessary repairs. If you need a new one, get an estimate, as this is both a complex and time-consuming job.
How do I Stop my heater core from leaking water?
You can disconnect both heater core hoses where they enter the heater core, and then connect them together using a coupler. This effectively bypasses the heater core and usually stops the leaking. Again, this is a temporary fix, and will leave you without heat and your defroster.
What happens if you have a pinhole in your heater core?
A leak as small as a pinhole in your heater core can spray a fine mist of coolant into the interior, and you’ll smell it. Avoid stop-leak products, as they’re at best a temporary solution and can cause other problems instead. It’s better to call your mechanic and have this taken care of now, before it gets worse.