Coolant Leak Diagnosis
Green, orange, or pink fluid leaking under a 2020 Jeep Wrangler when the engine runs hot indicates a coolant leak. This is often due to a failing water pump, radiator, or hose, and can lead to engine overheating and damage if not addressed promptly.
Diagnosis Details
Possible Causes
Water pump failure (common on 3.6L Pentastar engines) – seal or bearing leak.
Radiator crack or hose leak (upper/lower radiator hose or expansion tank).
Heater core or thermostat housing leak (less common but possible).
Related OBD-II Codes
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What You Should Do
Check coolant level and top off with correct Mopar OAT coolant.
Inspect water pump weep hole, radiator, hoses, and thermostat housing for leaks.
Pressure test cooling system.
Do not drive if overheating persists.
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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.
