Why does the temperature gauge on my car read Cold?
Why does the temperature gauge on my car read Cold? If the temperature gauge still reads cold after the engine has warmed up, the gauge may simply be broken. Another reason the temperature gauge could read cold is if the thermostat in the vehicle stays open. What to do if your car's temp is too hot? If this still doesn't work, pull over on the side of the road, turn off the engine, open the hood carefully, and wait until the vehicle cools down. Never open the radiator cap while the engine is hot – coolant can spray and burn...