Here are some possible reasons why the check engine light and cooling fan may be connected in your PT Cruiser:
* Coolant Leak: A coolant leak can cause the engine to overheat, which will trigger the check engine light. It can also cause the cooling fan to run excessively in an attempt to cool the engine.
* Faulty Temperature Sensor: A faulty temperature sensor can provide incorrect readings to the engine control unit (ECU), which could lead to the check engine light coming on and the cooling fan running excessively.
* Electrical Issues: An electrical problem, such as a short circuit or malfunctioning relay, could cause the check engine light to come on and the cooling fan to run excessively.
If you are experiencing both a check engine light and a cooling fan issue in your PT Cruiser, it is important to have the vehicle diagnosed by a qualified mechanic to determine the exact cause of the problem and ensure that it is repaired properly.
