Vehicles using 5S-FE engine list:

Engine 5S-FE

Symptoms:
- Rough idling and stalling
- Loss of power and poor acceleration
- Engine misfires or hesitation during acceleration
- Excessive oil consumption or oil leaks
- Overheating or coolant leaks
- Check Engine Light (CEL) illumination

Diagnosis:
- Inspect spark plugs and ignition components for wear or fouling
- Check for vacuum leaks around intake manifold and hoses
- Perform compression test to assess cylinder health
- Scan for stored trouble codes related to fuel injection or ignition timing
- Inspect timing belt condition and alignment
- Check for coolant leaks around water pump and radiator hoses
- Examine valve cover gasket and seals for oil leaks

Fixes:
- Replace worn or fouled spark plugs and ignition wires
- Repair or replace cracked or leaking vacuum hoses
- Replace timing belt and tensioner at recommended intervals (usually every 90,000-100,000 km)
- Replace valve cover gasket to stop oil leaks
- Repair or replace faulty fuel injectors or sensors triggering CEL
- Flush and replace coolant; repair leaks in cooling system components
- Clean or replace the idle air control valve to resolve rough idling

Prevention:
- Adhere to regular maintenance schedule, including timely oil and filter changes
- Replace timing belt proactively to avoid catastrophic engine damage
- Use quality spark plugs and ignition components
- Regularly inspect and replace worn vacuum hoses
- Monitor coolant levels and condition to prevent overheating
- Address engine warning lights promptly to avoid further damage

The 5S-FE engine is generally reliable but requires diligent maintenance, especially regarding the timing belt and ignition system, to ensure longevity and smooth performance in Toyota Camry 2.2i models from 1992 to 2001.