Vehicles using AJ-16 engine list:

Engine AJ-16, used in Jaguar XJ6 and related models (1995–1997), commonly faces timing chain wear and head gasket leaks. Diagnosis includes checking for rattling noises at startup (timing chain) and coolant loss or overheating (head gasket). Preventive maintenance involves regular oil changes with high-quality oil to reduce wear and monitoring coolant levels. Solutions include timing chain replacement if stretched or noisy, and head gasket replacement if leaks occur. Additionally, inspect and replace aging ignition components to maintain smooth running. Regularly check for oil leaks and maintain cooling system health to avoid overheating and engine damage.