Hello,
Does anyone here have any suggestions as to how to go about getting trapped air out of the cooling / heating system? Both the front and rear heaters used to work fine, but recently the rear heater stopped getting hot and I can hear gurgling up front in the system. I suspect that it's air trapped in there that's causing the problem. Do I need to drive up some steep hill and open up the radiator cap to let the air gravitate to the top?
Someone mentioned opening up the radiator cap after parking the vehicle (engine hot, thermostat open) for the night. Is that the correct way to do it?
Thanks in advance to those who post a reply here.
Peter.