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The engine is overheating - see a mechanic for a professional diagnosis .
Look at your thermometer. Or you can check for steam or smoke coming from the engine. Look and see how much coolant you have. And basically you can tell if it is overheating just by putting your hand by the engine after you drive it for a while. if it is abnormally hot, pretty good chance it is overheating.
That is the check engine light. See related question below.
see link below, should look like the picture there.
How is your heat? Overheating can cause damage generally to head gasket, cylinder head or thermostat. See other posts regarding headgaskets in this forum. answer you can damage whole engine thru overheating but if u had no coolant leak when overheating occurred, u need to check water pump and thermostat in engine
Overheating an engine can cause the engine to see up resulting in a complete engine failure. Overheating the engine can cause the head gasket to fail.
That is the check engine light, see related question below.
First off, check your engine coolant tank. If it's low, then that's the problem. Put more coolant in. If it's at the correct level, then look to see if there's gunk buildup. Second, is your engine overheating? If the engine is not overheating, and there is gunk buildup in the coolant tank, then you may just need to clean the sensor. If there is no gunk in your tank, your coolant level is fine, and your engine is not overheating, then it may be a bad sensor, and you need to replace it.
Overheating often warps the head. If the heat was high enough then the engine block could be ruined as well. Check the compression to see if it is still in the right range, this will help determine the amount of damage.
That is the check engine light. See related questions below.
check for a stuck thermostat. to do this simply squeeze your air in take line once your engine has warmed up and if it had pressure your thermostat is OK Check the fluid in your radiator to see if there is enough and if it is still in good condition,
Check to see how much fluid is in your transmission.