Sweet Smell While Driving or After Parking
A sweet smell, often described as maple syrup or candy-like, typically indicates a coolant leak. This is a serious issue because coolant is toxic to pets and wildlife, and a leak can lead to engine overheating and major damage.
Diagnosis Details
Possible Causes
Coolant leak from a hose, radiator, water pump, or heater core
Heater core leak (especially if smell is inside the cabin)
Coolant reservoir cap not sealing properly
Related OBD-II Codes
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What You Should Do
Check coolant level in the reservoir and radiator (when cold).
Look for puddles under the vehicle, wet spots on hoses, or a sweet smell inside the cabin.
Do not drive if the engine is overheating.
Have the cooling system inspected and repaired immediately.
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.
