1. Low refrigerant level: If the air conditioning system is low on refrigerant, the compressor will have to work harder to cool the air, which can put a strain on the engine and cause it to run rough.
2. Faulty compressor: A faulty air conditioning compressor can also cause the engine to run rough. The compressor is responsible for circulating the refrigerant through the air conditioning system, and if it is not working properly, it can put a strain on the engine.
3. Faulty idle air control valve: The idle air control valve (IACV) is responsible for controlling the amount of air that flows into the engine at idle. If the IACV is not working properly, it can cause the engine to run rough, especially when the air conditioner is turned on.
4. Dirty throttle body: A dirty throttle body can also cause the engine to run rough, especially when the air conditioner is turned on. The throttle body is responsible for controlling the amount of air that flows into the engine, and if it is dirty, it can restrict airflow and cause the engine to run lean (too much air, not enough fuel).
If you are experiencing any of these symptoms, it is important to have your vehicle inspected by a qualified mechanic to determine the exact cause of the problem and have it repaired.
