Can AC Going Out in Car Cause Check Engine Light?
Short Answer:
Yes, a faulty AC system can trigger the check engine light in your car.
Long Answer:
The check engine light (CEL) is an indicator that something is wrong with your car’s engine or emissions system. It can be triggered by a variety of problems, including issues with the AC system.
The AC system in your car is responsible for cooling the cabin. It consists of several components, including the compressor, condenser, evaporator, and expansion valve. If any of these components fail, it can cause the AC system to malfunction.
A faulty AC system can cause the check engine light to come on for several reasons. For example, if the compressor fails, it can cause the refrigerant pressure in the system to drop. This can lead to the formation of ice crystals in the evaporator, which can restrict airflow and cause the engine to overheat.
In addition, a faulty AC system can also cause the engine to run richer than normal. This can lead to increased emissions, which can trigger the check engine light.
Symptoms of a Faulty AC System
In addition to triggering the check engine light, a faulty AC system can also cause a variety of other symptoms, including:
- Reduced cooling performance
- Strange noises coming from the AC system
- Leaks of refrigerant or oil
- Increased fuel consumption
What to Do If Your Check Engine Light Comes On
If your check engine light comes on, it’s important to have it diagnosed by a qualified mechanic as soon as possible. The mechanic will be able to determine the cause of the problem and recommend the appropriate repairs.
In the meantime, you should avoid driving your car if possible. If you must drive your car, be sure to keep an eye on the temperature gauge and listen for any unusual noises coming from the engine.
