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Home >> Jeep >> 2007 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine & Automatic Transmission Cooling System) >> Engine >> Radiator >> Diagnosis And Testing >> Radiator-Radiator Coolant Flow

Radiator-Radiator Coolant Flow

WARNING: This page is about a different variant/trim than selected.

The following procedure will determine if coolant is flowing through the cooling system.

If engine is cold, idle engine until normal operating temperature is reached. Then feel the upper radiator hose. If hose is hot, the thermostat is open and water is circulating through cooling system.

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