How Do You Diagnose A Cooling System Problem?
There are a number of things that can go wrong with your car’s cooling system, causing the engine to run warmer than it should. The following is a list of things that are easily checked at home by the do-it-yourselfer, and can always add to your knowledge of cars in general. Understand that overheating problems may be caused by a low coolant level, the radiator being plugged, the thermostat may be stuck, or other related common cooling system problems. Check the coolant level at the radiator overflow/plastic coolant reservoir tank to see if you’re low on coolant (see “How to Check Your Car’s Coolant Level,” under Related eHows). Add if necessary. Open the radiator cap and look inside the radiator when the engine is cold. Fill the radiator with a 50/50 mix of antifreeze and water if it’s empty or low, and close the cap. Look at both the lower and upper radiator hoses located at the top and bottom of the radiator on the back side and held by hose clamps. Make sure the hoses are securely
