Coolant Leak Diagnosis for 2019 Toyota Corolla
Green, orange, or pink fluid leaking under the car, especially when the engine runs hot, indicates a coolant leak. This is a serious issue that can lead to engine overheating and damage if not addressed promptly.
Diagnosis Details
Possible Causes
Radiator hose leak or crack
Water pump seal failure
Radiator core leak or corrosion
Related OBD-II Codes
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What You Should Do
Do not drive the car if overheating.
Check coolant level in the reservoir and radiator (when cool).
Inspect hoses, radiator, and water pump for visible leaks.
Pressure test the cooling system to pinpoint the leak.
Replace damaged components and refill with correct Toyota coolant.
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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.
