Vehicles using 135950 engine list:

Engine 135950

Symptoms:
- Rough idling or engine misfire
- Loss of power or poor acceleration
- Increased fuel consumption
- Engine warning light illumination
- Unusual noises from the engine bay

Diagnosis:
- Check for fault codes using an OBD-II scanner to identify sensor or ignition issues.
- Inspect spark plugs and ignition coils for wear or damage.
- Examine the air intake system and throttle body for blockages or carbon buildup.
- Test the fuel injectors for proper spray pattern and operation.
- Assess the condition of the timing chain or belt for wear or slack.
- Look for vacuum leaks in hoses and intake manifold gaskets.
- Check engine oil level and quality to rule out lubrication problems.

Fixes:
- Replace worn or fouled spark plugs and faulty ignition coils to restore proper combustion.
- Clean or replace the air filter and throttle body to ensure optimal airflow.
- Service or replace fuel injectors if clogged or malfunctioning.
- Adjust or replace the timing chain/belt if stretched or damaged to maintain correct valve timing.
- Repair or replace leaking vacuum hoses and gaskets to prevent air intake issues.
- Perform an oil change with the recommended grade and inspect for any signs of internal engine wear.
- Reset the engine control unit (ECU) after repairs to clear fault codes.

Prevention:
- Follow the manufacturer’s recommended maintenance schedule for oil changes, spark plug replacement, and air filter servicing.
- Use high-quality fuel and engine oil to minimize deposits and wear.
- Avoid prolonged idling and aggressive driving to reduce engine stress.
- Regularly inspect hoses and belts for signs of wear or damage.
- Keep the cooling system in good condition to prevent overheating.
- Address any warning lights promptly to avoid further engine damage.