- Faulty Ignition System:
- Check for worn spark plugs, spark plug wires, distributor cap, and rotor.
- Replace/repair any faulty components.
- Fuel Delivery Issues:
- Inspect the fuel filter for any blockage and fuel pressure regulator for proper operation.
- Clean or replace the fuel filter as needed.
- Vacuum Leaks:
- Inspect the vacuum hoses for cracks, leaks, or loose connections.
- Replace or repair any damaged hoses or seals.
- Oxygen Sensors:
- Malfunctioning O2 sensors can affect air-fuel mixture and engine performance.
-Test and replace any faulty oxygen sensors.
- Throttle Body Issues:
- Clean the throttle body and perform an Idle Air Control (IAC) valve test.
- Replace any faulty IAC valves.
- Faulty Idle Air Control Valve (IACV):
- IACV controls the idle speed. If faulty, it might not maintain the desired idle speed.
- Test and replace if needed.
- Transmission Problems:
- Check the transmission mount for any damage.
- Get transmission fluid levels and condition checked if necessary.
- Incorrect Fuel:
- Make sure the fuel used matches the octane requirement of your vehicle.
- Exhaust Restrictions:
- Verify the exhaust system for blockages or restrictions that can cause poor airflow.
- Electrical Problems:
- Check the battery connections, ground straps, and electrical connectors for loose or corroded connections.
- Check the engine computer for error codes.:
- Retrieve the trouble codes using an OBD-II scanner.
