What Causes Pressure And Air Buildup in the Cooling System

[@kathylewis7543]

Can cracks in hoses cause air in system causing it to iver heat? Or a bad coolant temp sensor?

[@a1fixitguy309]

Bad coolant temperature sensor

[@kathylewis7543]

My car over heated do i need to purb it again?

[@a1fixitguy309]

Change the thermostat first....then have it flushed or you might have a pin hole leak somewhere if it's has a leak...look for a leak first.

[@kathylewis7543]

If there is air in you system will it over heat i have a overheating issue 2010 subaru legacy new thermostat and rad cap. Still over heating im praying its not head gadjet ill be done. Fan appear to be working heater working i winder if it coukd be a faukty coolant temp sensor.s.o.s.

[@a1fixitguy309]

It could be a number of things....bad thermostat, low coolant, old coolant, clogged up coolant, leak in the radiator....check the thermostat first.