Vehicles using TD 42 engine list:

Engine TD 42

Symptoms:
- Hard starting or failure to start
- Excessive smoke from the exhaust (black or white)
- Loss of power and poor acceleration
- Overheating or unusual engine noises
- Excessive oil consumption or leaks

Diagnosis:
- Check fuel delivery system including injectors and fuel pump for clogging or failure
- Inspect glow plugs and wiring for proper operation, especially in cold conditions
- Examine air intake and exhaust system for blockages or leaks
- Perform compression test to assess cylinder health and head gasket integrity
- Check coolant levels and radiator condition to rule out overheating causes

Fixes:
- Clean or replace fuel injectors and fuel filters to restore proper fuel flow
- Replace faulty glow plugs and repair wiring to ensure reliable starting
- Repair or replace damaged air intake components and exhaust gaskets
- Address compression issues by servicing or replacing worn piston rings, valves, or head gasket
- Flush cooling system, replace thermostat, and repair radiator leaks to prevent overheating
- Regular oil changes with correct grade oil to reduce wear and prevent sludge buildup

Prevention:
- Use high-quality diesel fuel and maintain fuel system regularly to avoid injector clogging
- Change engine oil and filters at recommended intervals to protect engine internals
- Monitor coolant levels and condition, and service cooling system periodically
- Avoid prolonged idling and excessive engine loads to reduce stress on components
- Regularly inspect and maintain glow plugs and electrical connections for reliable cold starts
- Keep air filters clean to ensure proper air flow and prevent engine contamination

By following these guidelines, owners of the Nissan Patrol R 4.2 D 2WD with the TD 42 engine can maintain reliable performance and extend engine life.