landau37

Hi lads, need help . My cousins xr8 fpv 2004 ute over heating, had into ford they changed over flow bottle. A month later happened again dropped water out of cap ,cap fine .So when turned off it dropped every thing ,i know thermostats are high temp on these. Anyone ? Thanks chris.....

 

zaneabel

Unless combustion pressure is entering cooling system, an air pocket may exsist in cooling system? If not overheating whilst on the road / highway speed, but just at idle, maybe a blockage in cooling system.

backlash1

Hi Chris
The way you describe the problem sounds like the coolant is boiling and coming out through the overflow. I would check for a thermostat that is stuck closed, or one (or both) fans not working at high/low speed. These thermostats should open up around 92 degrees, and fans should come on high speed around 102-105. If you see the coolant boil inside the tank around the time when the fans come on high your system is not holding pressure, and since you replaced the tank, I'll go straight for the cap. cheers
Marc