Do you lose coolant when changing thermostat?
With a normal top-mounted thermostat you need drain only part of the cooling system . Do not drain it while the engine is hot — you may be scalded. Drain the coolant from the radiator tap, or from the bottom hose, until it is below the level of the thermostat housing.
Can you replace a thermostat without draining coolant?
You don’t need to drain all of the coolant, no. Just replace what falls out when you pull the hose off to do the thermostat. Air will get into the system when doing the thermostat, there’s really no way around it. You will need to bleed the cooling system when finished.
Why is my car overheating after replacing the radiator?
Overheating. Just replaced radiator and thermostat, but still hasn’t fixed the problem. My car overheated the other day, and it was leaking coolant horribly. I got a new radiator, which stopped the leaking, but the car was still overheating so then we tried replacing the thermostat but it is overheating even now.
When is it time to replace my engine thermostat?
Instead, the coolant is redirected back into the engine block to ensure it reaches its ideal temperature (around 190 degrees) sooner – regardless of how hot or cold the outside air is. The components of a typical engine thermostat.
What happens to coolant when the thermostat is opened?
As the thermostat opens, the flow of coolant is gradually diverted into the radiator instead. Thermostats have a temperature “rating” (such as 180 or 190 degrees Fahrenheit) which is the temperature at which the thermostat begins to open. It will reach the fully open point approximately 15 to 20 degrees higher.
Is the water pump still hot after replacing the radiator?
I have replaced the radiator, water pump, it still run hot. I took out the thermostat and it still run hot when you drive it any distance. The temperature gauge return to normal when it is setting still and running. Help I’m at a lost to the problem. 71 people found this helpful. Did you ever find the cause of this?