Daughter's friend showed up here yesterday with an overheating Jeep. Overflow bottle was bone dry. Upper and lower hoses were cool to the touch but engine block was hot. Radiator was also low on coolant.
Today we pressure tested the system at 16psi for 10 minutes and no leaks. Pressure never dropped.
We added antifreeze and bled the system until no air and it was full. The engine then ran at normal temp and then both hoses were hot as the thermostat had opened.
I can't think of any other reason it would have overheated? Normally it would be a leak, thermostat or water pump but all seem okay.
Today we pressure tested the system at 16psi for 10 minutes and no leaks. Pressure never dropped.
We added antifreeze and bled the system until no air and it was full. The engine then ran at normal temp and then both hoses were hot as the thermostat had opened.
I can't think of any other reason it would have overheated? Normally it would be a leak, thermostat or water pump but all seem okay.