[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Bleeding coolant system



Greetings.
Put on the new water pump last night, put some antifreeze in the rad and started the car.
No leaks, just waiting for the motor to warm up and then continue to top up the rad.
 
The lower rad hose never got warm, so suspecting a sticky thermostat, put in a new one.
 
Same thing!
 
The rad would heat up and start steaming but the lower hose was cold.
 
Put the cap on, ran it till warm and everything worked fine.
 
The old thermostat was a 92C, the new one is 180F.
 
Why did the system need pressure to open the thermostat?
 
Thanks
Ed