- Clogged fuel filter
- Faulty fuel pump
- Fuel injector issues
- Low fuel pressure
2. Air Intake Problems:
- Clogged air filter
- Vacuum leaks
- Faulty Mass Air Flow (MAF) sensor
3. Ignition System Issues:
- Worn or fouled spark plugs
- Faulty ignition coil
- Distributor problems (if applicable)
4. Electrical Issues:
- Weak battery
- Loose or corroded battery connections
- Alternator problems
5. Engine Vacuum Leaks:
- Cracks or tears in vacuum hoses
- Damaged intake manifold gasket
- Faulty PCV valve
6. Idle Air Control (IAC) Valve Problems:
- IAC valve sticking or malfunctioning
- Carbon buildup in the IAC valve
7. Faulty Sensors:
- Oxygen sensor malfunction
- Coolant temperature sensor issues
- Throttle position sensor problems
8. Mechanical Issues:
- Compression problems
- Timing chain/belt misalignment
- Worn piston rings