Could be lots of things. You should have it checked for codes. The temp gauge problem would make me think of a possible temp sensor problem. It should be located near the thermostat housing.
Do you mean the cooling fan? If so engine temperature has excedded 235 degrees Check coolant level
water pump, oil, water, engine coolant....main cause would be engine coolant, just check to see if you have a leak.
It requires a scanner to properly diagnosis a check engine light.
Yes, on some vehicles it can.
Several things could cause the 2001 Impalas check engine light to stay on. Since so many things could be wrong, check the computer codes for any leads on possible problems.
well, check your oil, engine coolant, and your radiator.
A low battery can cause the electrical system to flash check engine lights
Replace your thermostat had same problem it sets a code but no check engine light
A defective thermostat can cause the engine to overheat. It can also cause the engine to not reach full operating temperature if the thermostat is stuck open. It is possible this could set the check engine light.
Most likely, the temperature gauge's connection is loose. It is usually on the thermostat. An inoperative temperature gauge will cause most check engine lights to come on.
A lot of parts stores will check it for free
Check engine is an error. You have to go at a garage to see what is the error code, then correct the problem.