Vehicles using D16 engine list:

Engine D16

Symptoms:
- Rough idling or stalling
- Loss of power or poor acceleration
- Engine misfires or hesitation
- Excessive oil consumption or leaks
- Overheating or coolant loss

Diagnosis:
- Check for vacuum leaks around intake manifold and hoses
- Inspect ignition components: spark plugs, wires, distributor cap, and rotor
- Perform compression test to assess cylinder health
- Examine timing belt condition and tension
- Inspect coolant system for leaks or blockages
- Scan for any stored fault codes if equipped with OBD system

Fixes:
- Replace worn or cracked vacuum hoses to eliminate leaks
- Change spark plugs and ignition components as needed to restore proper firing
- Replace timing belt at recommended intervals (usually every 60,000 to 100,000 miles) to prevent failure
- Repair or replace leaking gaskets, seals, or oil pan to stop oil leaks
- Flush and refill coolant system; replace thermostat or radiator if overheating persists
- Clean or replace fuel injectors and air filter to improve combustion efficiency

Prevention:
- Follow regular maintenance schedule including timely oil and filter changes
- Replace timing belt and water pump as per manufacturer’s recommendations
- Use quality fuel and oil to reduce engine deposits and wear
- Regularly inspect hoses and belts for signs of wear or damage
- Keep cooling system in good condition to avoid overheating-related damage
- Address minor issues promptly to prevent escalation into major engine problems