When does the red coolant light come on? Hopefully not but – most likely when your sitting in traffic on a hot day. This is usually followed by a cloud of steam from the engine compartment. At this point, all you can do is get to the side of the road to let the engine cool down. Don’t raise the hood right away. You may be met by a scolding hot blast of coolant. Let the steam clear, then it should be safe to raise the hood Slowly with caution .
Some of the reasons this light can come on 1.obviously overheating engine 2.coolant sensor malfunction 3.dash gauge failure 4.on some cars low coolant indication. Other overheating causes 1.worn out oil or very low oil level 2.coolant mix is not adequate for temperatures 3.badly contaminated coolant 4.thermostat /thermostats do not operate properly
With the list above in mind, check the coolant level in the reserve tank from the outside (if you must remove the screw on cap, remove slowly to relieve any remaining pressure). If you can – check the coolant level in the radiator and check oil level. Add the correct coolant as needed. Caution – On some cars, the electric radiator fans will come on when the engine is hot. Also if the car is actually overheating, the electric radiator fans should be on when the engine is running.
Whether to drive your car further or home? Tough one to call without diagnosing the root cause of the problem.
Question? You have noticed going up hills, your temperature gauge climbs close to the red zone. What simple task could you do to maybe help remedy the issue till you get home? Answers next week.
Next week I will continue covering the overheat issue.
As always ‘Great Service with a Smile”