Temp gauge drops to 0 and AC stops working intermittently
While driving, usually in the morning, my temp gauge will
drop to 0 and the AC will stop working. I have been able to
fix it by pulling the negative battery cable and reset the
ECU, everything works as it should immediately. I have
tested the harness going to the sensor and it has both 5v
and continuity to ground. The sensor read around 500
ohms when I tested it. All hoses are hot and have pressure
as they should. What's going on here? Any ideas?
Either bad Engine coolant sensor, bad thermostat or both. Older engines they are behind the alternator right next to each other so replace them both newer engines they moved the sensor to the other side of the engine back by the firewall. So try one and then the other.
When temp light goes on .i stop car ..wait a minute .but it wont turn over