1. Vacuum Leak:
- Check for any leaks in vacuum lines or hoses connected to the engine. A vacuum leak can cause loss of vacuum pressure, leading to rough idling and power loss.
2. Idle Air Control (IAC) Valve:
- The IAC valve regulates the amount of air that bypasses the throttle plate when the engine is idling. A faulty or dirty IAC valve can cause idle issues. Clean or replace it if necessary.
3. Throttle Body:
- A dirty throttle body can also lead to rough idling and power loss. Clean the throttle body and its components according to your car's manual.
4. Spark Plugs and Wires:
- Check the spark plugs and spark plug wires for wear, damage, or fouling. Worn-out or faulty spark plugs and wires can cause misfires and reduce engine power.
5. Fuel System Issues:
- Check for any issues in the fuel system, such as a clogged fuel filter, faulty fuel injectors, or low fuel pressure. These issues can affect the air-fuel mixture and result in idle problems and power loss.
6. Engine Mounts:
- Worn or damaged engine mounts can cause the engine to shake excessively. Inspect the engine mounts and replace any that are worn out or broken.
7. Oxygen Sensor:
- A faulty oxygen sensor can affect the air-fuel mixture, leading to idling problems and power loss. Check the oxygen sensor and replace it if necessary.
8. Transmission Issues:
- In some cases, idling issues and power loss can be related to transmission problems. If the problem persists, have your transmission checked.
