I have a 1999 Expedition 2wd 4.6L. While letting it run in the driveway, it overheated. Started with the likely culprit and replaced the thermostat. Then it wasn't getting heat, so I got some of the air out of the system and the heat returned. One of the issues I'm seeing is that the top hose going into the radiator is cold, and there doesn't seem to be enough coolant in the hose either. The coolant in the overflow tank is hot. That leads me to believe there is more air in the system. Also, the hose begins to collapse while under throttle....
What am I missing as far as why, when at operating temp, the top hose is cold? Bad thermostat?
Thanks in advance for any help!
Steve
What am I missing as far as why, when at operating temp, the top hose is cold? Bad thermostat?
Thanks in advance for any help!
Steve