If in autumn the engine started taking longer to warm up, the cause may be a malfunction of the cooling system or its individual components. Among the possible problems are the thermostat, temperature sensor, insufficient antifreeze level, air in the system, and incorrect operation of the fan.
Engine takes a long time to warm up: 5 possible causes
The increase in warm-up time should not be automatically attributed solely to a drop in air temperature. The source identifies five causes that need to be checked.
1. Thermostat. A malfunction of this component can be the cause of prolonged engine warm-up. The thermostat is one of the first elements of the cooling system that should be checked.
2. Temperature sensor. Incorrect operation of the sensor can affect engine temperature readings. In this case, the driver may receive incorrect information about its warm-up.
3. Low antifreeze level. An insufficient amount of coolant is also among the list of possible causes. Its level should be monitored and the cooling system checked.
4. Air in the system. The presence of air in the cooling system can disrupt its normal operation. This factor also needs to be taken into account when searching for the cause of prolonged warm-up.
5. Incorrect operation of the fan. Another possible cause is incorrect operation of the cooling system fan, due to which the engine temperature regime may differ from normal.
The engine cooling system needs checking
“Thermostat, temperature sensor, low antifreeze level, air in the system, and incorrect operation of the fan,” are precisely the five causes named by the author Oleksii Astapov.
The provided source does not contain a link, the name of the publication, or additional explanations regarding diagnostics, therefore specific methods of repair and checking the components are not given.
