What is the hose that connects to the coolant reservoir?
overflow hose
An overflow hose connects to the radiator below the cap and the reservoir tank to store overflow of coolant. As pressures in the cooling system increase due to coolant temperatures, a valve on the radiator cap permits coolant back into the reservoir to help ease the build-up of pressure and prevent coolant loss.
Does the radiator take coolant from reservoir?
As your car’s engine heats up, the pressure within the radiator builds up. This excess coolant stays here until the system cools down enough to create negative pressure and draw the excess coolant from the reservoir back into circulation. While the engine is off, your coolant reservoir should be about 30% full.
Where does the hose from the radiator go?
On this type, the hose from the radiator is connected to a port on the tank itself. The other type has a hose that hangs down from the overflow cap and the hose from the radiator connects to a port on the top of the cap. Problems could be a crack in the molded tube above the coolant level in the tank.
How is a coolant recovery tank connected to a radiator?
Start saving for a new head gasket. There are basically two types of coolant recovery tanks. One type has a tube molded into the side of the tank. On this type, the hose from the radiator is connected to a port on the tank itself.
Why is there no coolant in the expansion tank?
I traced it down to the hose between the radiator and expansion tank. It acted like a check valve. The coolant would be forced into the tank, but the vacuum created when the radiator cooled could not pull the coolant into the radiator. $2 worth of tubing and clamps and 10 minutes labor fixed the problem.
How do you replace a surge hose on a radiator?
Slide the new hose clamps on both the radiator end and surge tank end of the surge hose. Spray a small amount of penetrating oil inside the surge tank hose. This will help it slide onto the male fitting on the radiator and coolant reservoir much more easily and reduce potential damage to the new hose.