Noticeable coolant leak under or around the generator; no code yet but coolant level drops.

Safety first: Allow the engine to cool completely before opening the cooling system. Hot coolant is dangerous.

• Check coolant level: Inspect the reservoir and radiator (when cool). Note how much coolant has been lost.
• Inspect hoses and clamps: Follow all coolant hoses and tighten loose clamps. Replace swollen or cracked hoses.
• Radiator and reservoir: Look for wet spots or white residue on the radiator core and plastic tank. Replace the Hyundai Power radiator or reservoir if leaking.
• Water pump: Check the pump weep hole for signs of coolant. A leaking pump requires replacement.
• Pressure test: If available, use a cooling system pressure tester to locate small leaks.