Engine Noise During Acceleration
Unusual noise from the engine compartment when accelerating in a 2020 Toyota RAV4 could indicate issues with the serpentine belt, exhaust system, or engine components. The noise may be a squealing, rattling, or knocking sound, often related to belt tension, exhaust leaks, or low oil pressure.
Diagnosis Details
Possible Causes
Worn or loose serpentine belt causing squealing under load
Exhaust manifold gasket leak or cracked exhaust component causing ticking or hissing
Engine knocking due to low oil level, poor fuel quality, or carbon buildup
Related OBD-II Codes
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What You Should Do
Check serpentine belt tension and condition; inspect for cracks or glazing.
Listen for exhaust leaks near the manifold.
Verify oil level and quality.
If noise persists, have a mechanic perform a diagnostic scan and listen with a stethoscope.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
