If the cooling fans do not activate in a 1997 XK8 Jaguar, first check the fuse associated with the cooling fan circuit to ensure it hasn't blown. Next, inspect the coolant temperature sensor and wiring, as a malfunctioning sensor may prevent the fans from turning on. Additionally, verify the operation of the fan relay by testing it or swapping it with a similar one. Lastly, check for any overheating issues or coolant levels, as the fans should engage when needed for engine cooling.
Check the thermal relay for the cooling fans.
fan stays on when car turn of
Yes, both cooling fans on the Jaguar XJ8 are designed to work together to regulate engine temperature effectively. The fans typically operate in tandem to provide optimal airflow through the radiator, especially under high load or when the engine is heating up. If one fan is not functioning, it can lead to overheating issues, so both should be operational for proper cooling performance.
The cooling fans on your 1999 Jaguar may continue to run after the engine is turned off to help dissipate heat from the engine and prevent overheating. This is a normal function designed to protect the engine components, especially if the engine was running hot or if the ambient temperature is high. The fans are controlled by a temperature sensor that activates them when needed, even after the ignition has been turned off. If the fans run excessively or for an unusually long time, it may indicate a malfunction in the cooling system or the temperature sensor.
Check the temperature sensor
The cooling fans turn on utilizing a temperature sensor and a relay. When the engine gets to a certain temperature the temp sensor closes and the cooling fans come on. Check fuses first. If you have a 12 volt test light, hook up the test light to the connector that goes to the cooling fans once the engine is warmed up and see if the light comes on. If it doesn't, the problem is in the power to the fans, check fuse, sensor and relay. If the light comes on and the fans don't, check for a proper ground (usually a green or black wire attached to a lug and bolted to the car chassis.
have the cooling fans checked out.
Check the relay.
The cooling fans are the only cooling source for a air cooled engine.
Check to see if they are getting power Could be a bad temperature sensor Check to see if they come on with A/C or defroster
Turn your Cadillac on! watch coolant gauge and if the temp is more than 225 your fans should kick on if not shut car off and check harness on fan with a circuit tester and check fuses