Why does my gas heater blow hot or cold?
Why does my gas heater blow hot or cold? If its getting flow, the two hoses are suppose to be warm or hot. One is flowing into the heater core and one flowing out. I used a hose line clamp tool to keep fluid from running out of the hose when it has pressure (warm engine). Took a garden hose and ran it on both lines a few times. Why is my heater not working in my car? The other possibility is that the thermostat may not be allowing the engine to reach a normal operating temperature and since the...