Check the engine coolant... Is it full? yes coolant level is full
Add coolant to the full cold line on the coolant reservoir when engine is cold.
The intermittent "Engine Coolant Low" alarm in your 2003 Jaguar S-Type-R, despite a full coolant reservoir and normal temperature gauge readings, may indicate a faulty coolant level sensor or a wiring issue. Corrosion or debris in the sensor can cause incorrect readings. Additionally, air bubbles trapped in the system or a slow leak could affect the sensor's performance. It's advisable to have the sensor and wiring inspected to resolve the issue.
If there is a cap on the radiator you can check to see if the radiator is full , and if it isn't , " top up " the engine coolant . Otherwise , you check the engine coolant level at the engine coolant reservoir when the engine is cold and maintain the level at the cold mark
Bad sensor? Should be located at the bottom of the coolant recovery tank
The engine coolant on a 1991 Honda Civic is replaced by turning the drain petcock and releasing the coolant. The filler cap is then removed and coolant added until the system is full again.
The coolant for a BMW x5 is placed into the coolant overflow tank on the left side of the engine compartment. It should be filled to the full mark when the engine is at operating temperature.
Full strength antifreeze (coolant) is about $9-$12 per gallon. The premix (50/50)coolant is a few dollars cheaper.
Check the radiator for full coolant. Check the engines water pump and thermostat, as the engine coolant carries heat from the engine into the heater core.
To fill the radiator in a 2005 Chevy Cobalt, first ensure the engine is cool, then locate the coolant reservoir and the radiator cap. Remove the radiator cap and, if necessary, the reservoir cap, and pour a 50/50 mix of coolant and water directly into the radiator until it's full. Replace the radiator cap securely, then check the coolant level in the reservoir and add more if needed. Always check for leaks after refilling and run the engine to circulate the coolant, topping off as necessary.
Hydro or hydraulically locked.
There is coolant in the engine block when the engine is not running. The engine block, heater, hoses and radiator remain full when engine is not running.