The most common cause of overheating of internal combustion engines after replacing antifreeze is the presence of air in the cooling system, which disrupts the fluid circulation process. The first sign that gives a signal that there is an air lock in the system is the supply of cold air by the heater to the passenger compartment, despite the fact that it is connected to the antifreeze circulation process in the engine.
Necessary
screwdriver
Instructions
Step 1
If the car owner suffers a similar failure, and he needs to remove air from the engine cooling system, then first the car is installed on a level platform, and then, after turning off the engine and removing the plug from the expansion tank, the clamp of the water pipe is released, supplying antifreeze to the throttle unit of the injection engine.
Step 2
Slightly moving the clamp, you will hear the hissing of the outgoing air, and after the coolant has flowed, the branch pipe returns to its place and the clamp is tightened. Then antifreeze is added to the expansion tank, the engine starts and warms up to operating temperature.
Step 3
By turning on the interior heater, the owner can make sure that there is normal circulation and that there is no air in the cooling system, being guided by the temperature of the air flow passing through the stove radiator.
