A few days ago I took the temperature sending unit off and went to buy a new one. Since I let it sit, I allowed air get into the system. Not realizing, I started the car and coolant poured out out the overflow. I then ran the car with the cap off and the front end jacked up... the expected bubbles came out.
Since then my temperature gauge will go just a little bit above the halfway mark then drop to a little before the halfway mark the first time. Subsequent times it goes to the halfway mark then drops down a little bit (not even a full mark). It will continuously do this as the thermostat opens - I assume. Also related I am sure, the radiator cap is not getting hot.
Lastly, I've now had to refill the overflow tank twice after driving it for a bit - probably 8 ounces both times. I do not have to fill it every time I drive the car. How can I tell if this is due to the system burping while being driven or I have blown a head gasket due to the air I let into the system?
Since then my temperature gauge will go just a little bit above the halfway mark then drop to a little before the halfway mark the first time. Subsequent times it goes to the halfway mark then drops down a little bit (not even a full mark). It will continuously do this as the thermostat opens - I assume. Also related I am sure, the radiator cap is not getting hot.
Lastly, I've now had to refill the overflow tank twice after driving it for a bit - probably 8 ounces both times. I do not have to fill it every time I drive the car. How can I tell if this is due to the system burping while being driven or I have blown a head gasket due to the air I let into the system?