cooling system - How does the thermostat work? - Motor Vehicle . . . 7 Basically, the thermostat regulates the temperature of water coolant in an engine When you first start the car it should be closed, essentially blocking the water coolant from traversing the radiator thus allowing the engine to reach its optimum temperature as quickly as possible
Does drilling a hole in thermostat affect engine temperature during . . . In all the cars I have bled, you need to run the engine with the radiator cap open so that the pressure doesn't build up, this allows the engine to get up to temperature and circulate out the last of the air when the thermostat opens (and allow you to top up the coolant as required, you shouldn't need to drill a hole anywhere
cooling system - How does the heater core work? - Motor Vehicle . . . The heater core is part of continuous loop of engine coolant propelled via the water pump, flowing through caverns in the engine, through pipes that run through the firewall into the heater core, back out the firewall, and finally through the radiator If the thermostat dictates it (due to a temperature limit being reached), the fan blows air over the radiator to cool it Since the liquid
How is outside temperature measured in a car? Most cars have a display for outside temperature, and I have been wondering how it was measured In other words, where exactly is the sensor and how reliable is it?
Why does my engine temperature go all the way up before coming back to . . . Buy a gasket scraper tool to save you hours of work Before you start, drain enough coolant so the thermostat is above all the remaining coolant, or you will make a big mess Replace the coolant with NEW coolant Make sure you put the new thermostat in the same way as the one you take out
coolant - Motor Vehicle Maintenance Repair Stack Exchange The car continued operation, and I was able to drive it to a mechanic later that day My mechanic was unable to diagnose the problem, but also mentioned the thermostat couldn't close, causing too much coolant to flow and the engine to run much cooler than it should
How to know when thermostat is open? - Motor Vehicle Maintenance . . . 7 You will know the thermostat is open when the engine reaches operating temperature The thermostat opens just before or around the operating temp of the engine Most modern vehicles have some sort of temperature gauge in them
Replace thermostat or use head gasket sealer first? I took the car to a mechanic and was told I have a cracked head gasket that is causing coolant to leak into the first combustion chamber The thermostat is also part way stuck I'm trying to decide if I should replace the thermostat first or use a head gasket sealer Which would make more sense to cause the cooling system to act this way?
Thermostat located in lower radiator hose, not upper 1 All the diagrams and videos online show the thermostat located where the engine meets the upper radiator hose This makes sense because coolant flows from the engine to the radiator via the upper radiator hose When the coolant is cool the thermostat valve is closed and the coolant bypasses the radiator