Coolant Leak Detected
A sweet smell while driving or after parking in a 2019 Honda Accord typically indicates a coolant leak. Coolant (antifreeze) has a sweet odor and can leak from various engine components, potentially leading to overheating and engine damage if not addressed promptly.
Diagnosis Details
Possible Causes
Leaking radiator or coolant hoses
Faulty heater core (leak inside cabin)
Cracked engine block or head gasket failure
Related OBD-II Codes
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What You Should Do
Check coolant level in the reservoir when engine is cool.
Look for visible puddles or stains under the car, especially near the front.
Inspect hoses and radiator for cracks or wet spots.
If coolant is low, top off with the correct Honda Type 2 coolant.
If the smell is inside the cabin, the heater core may be leaking.
Seek professional diagnosis to locate and repair the leak before driving to avoid overheating.
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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.
