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How to Replace the Heating Radiator

Model: Jeep Grand Cherokee MK 2, WJ - Years 1998-2004
Part: Heater core

The heating system in a car operates through a device similar to a small radiator that blows warm air to heat the interior of the vehicle. It is advisable to carry out the radiator replacement while the engine is cold to avoid the risk of burns. Open the cap of the coolant reservoir, disconnect the radiator hose, ensuring to place a container underneath to catch any coolant. Next, disconnect the upper hose and the return hose, remove the radiator mounting points, and consequently the radiator itself. Then, position and secure the new radiator by connecting its hoses.

Updated on 9 February 2026 by ScegliAuto

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