Vehicles using B6304T2 engine list:

Engine B6304T2

Symptoms:
- Rough idling and hesitation during acceleration
- Engine misfires or loss of power
- Excessive oil consumption or visible leaks
- Check Engine Light (CEL) illumination
- Unusual noises such as ticking or knocking from the engine bay

Diagnosis:
- Inspect ignition coils and spark plugs for wear or damage, as misfires are common with aging components
- Perform a compression test to check for cylinder sealing issues, which can cause rough running
- Check for vacuum leaks around intake manifold and hoses that may cause erratic idling
- Scan the engine control unit (ECU) for fault codes related to fuel injection, ignition timing, or emissions systems
- Examine turbocharger operation and boost pressure, as the T6 engine relies on forced induction
- Inspect for oil leaks around valve cover gaskets and turbocharger seals

Fixes:
- Replace worn or faulty ignition coils and spark plugs to restore smooth combustion
- Repair or replace leaking gaskets and seals to prevent oil loss and contamination
- Clean or replace the mass airflow sensor (MAF) and throttle body to improve air intake accuracy
- Service or rebuild the turbocharger if boost pressure is insufficient or if there are unusual noises
- Address vacuum leaks by replacing cracked hoses or faulty intake manifold gaskets
- Update engine software if available to improve performance and reliability

Prevention:
- Follow regular maintenance schedules including timely oil and filter changes using manufacturer-recommended grades
- Use high-quality fuel and spark plugs to reduce deposit buildup and maintain combustion efficiency
- Periodically inspect ignition components and replace before failure to avoid misfires
- Monitor turbocharger health by avoiding aggressive driving when the engine is cold and allowing proper cooldown after heavy use
- Keep the intake system clean and free of debris to ensure accurate sensor readings and airflow

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