Vehicles using M272.952 engine list:

Engine M272.952

Symptoms:
- Rough idling and misfires
- Engine warning light (Check Engine Light) illumination
- Reduced power and poor acceleration
- Oil leaks around the valve cover and timing chain area
- Unusual engine noises, such as rattling or ticking sounds

Diagnosis:
- Inspect ignition coils and spark plugs for wear or damage, as misfires are common with faulty coils or plugs
- Check for oil leaks around valve cover gaskets and timing chain covers, which are prone to degradation
- Perform a diagnostic scan to identify error codes related to camshaft position sensors or variable valve timing (VVT) issues
- Examine timing chain tensioners and guides for wear or failure, which can cause rattling noises and timing problems
- Inspect the intake manifold for carbon buildup, which can affect engine performance

Fixes:
- Replace faulty ignition coils and worn spark plugs to resolve misfires and rough idling
- Replace valve cover gaskets and timing chain cover gaskets to stop oil leaks
- Replace or repair timing chain tensioners and guides to eliminate rattling noises and prevent timing chain failure
- Clean or replace the intake manifold if carbon buildup is significant
- Address any VVT solenoid or camshaft sensor faults by replacing the defective components

Prevention:
- Regularly change engine oil and use the manufacturer-recommended grade to maintain proper lubrication and prevent premature gasket and timing chain wear
- Follow scheduled maintenance intervals for spark plug and ignition coil replacement
- Use high-quality fuel to reduce carbon deposits in the intake manifold and combustion chambers
- Periodically inspect for oil leaks and unusual engine noises to catch issues early
- Avoid extended idling and aggressive driving to reduce engine stress and wear on timing components