if you have a 4 cyl. engine you have to remove the bleed valve bolt to let the air out or you gonna run hot....... i have a V-6 engine and had to squeeze just about every hose under the hood to get the air pockets out of it...... took three tries to get the coolant recovery tank to stop going down....
Originally posted by dbird: if you have a 4 cyl. engine you have to remove the bleed valve bolt to let the air out or you gonna run hot....... i have a V-6 engine and had to squeeze just about every hose under the hood to get the air pockets out of it...... took three tries to get the coolant recovery tank to stop going down....
Where is the bleed valve bolt on the zetec, i had to change a hose awhile back and didn't even think to bleed the air. I am kinda used to my old truck which had the coolant fill hole on the radiator so air didn't have a lot of places to build up. After looking at Miguel Angel's sig i am now wondering if there is such a monster as a 2.5 zetec gl.
1996 Zetec MTX
NO Mods it's only a matter of money now though.
Air is removed during engine operation. Read the following from service manual:
Coolant Recovery System
Note: When the coolant thermostat is closed, there is no flow through the radiator coolant expansion tank.
A pressurized radiator coolant expansion tank system is used which continuously separates the air from the cooling system.
â?? When the coolant thermostat is open, coolant flows through the hose from the bottom of the expansion tank into the radiator lower hose.
â?? The expansion tank separates any trapped air from the cooling system and replenishes the system through its coolant expansion tank hose attached to the water outlet hose.
The expansion tank serves as the location for:
â?? Service fill.
â?? Coolant expansion during warm - up.
â?? System pressurization from the expansion tank cap.
â?? Air separation during operation.
â?? The expansion tank is designed to have approximately 0.5 to 1 liter of air when cold to allow for coolant expansion.
