Is there a way to bleed a thermostat?
The only way to rectify the problem is to replace the thermostat, then bleed the cooling system. Open the vehicle’s hood and locate the upper radiator hose, the rubber hose that connects to the top of the radiator. Place the drain pan directly below the upper radiator hose.
Where is the bleed screw on a car cooling system?
The most common place is right on the thermostat housing where the upper radiator hose connects to the engine. If you see an orphaned, single screw, your cooling system has a bleed screw—some systems come with more than one bleed screw, though. Check your car owner’s manual or repair manual, if necessary.
What should I do before replacing my thermostat?
Before removing the thermostat, pay attention to the way the thermostat aligns inside the housing. To check the alignment, note which direction the bleed pin—near the edge on the round base of the thermostat—points to. You will have to install the new thermostat with the bleed pin pointing in the same direction as the old one.
How do you Bleed coolant from the radiator?
Locate the bleed screw and place a pan on the floor to catch the coolant that will come out through the screw. Start the engine and let it idle for about 20 minutes to bring the engine to operating temperature—when the engine has reached operating temperature, you’ll feel the upper radiator hose getting hot.
The only way to rectify the problem is to replace the thermostat, then bleed the cooling system. Open the vehicle’s hood and locate the upper radiator hose, the rubber hose that connects to the top of the radiator. Place the drain pan directly below the upper radiator hose.
What to do if your cooling system bleeds?
If your cooling system has a bleeder valve it will be important to use it. The best thing you can do to protect yourself from an air pocket is to watch the gauge and double-check your coolant level after any work on your cooling system.
Do you have to open the bleeder valve on a radiator?
Remember, vehicles will not purge themselves and must be “burped”. To burp a cooling system the thermostat must be open, and the system must be hot and fluid pumping through it. Your heater must be on hot and venting hot air. All bleeder valves must be opened to release air from any high point in the cooling system and then shut securely.
Locate the bleed screw and place a pan on the floor to catch the coolant that will come out through the screw. Start the engine and let it idle for about 20 minutes to bring the engine to operating temperature—when the engine has reached operating temperature, you’ll feel the upper radiator hose getting hot.