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Cooling System Upgrade Coolant Passages

With the thermostat and pump removed, we noticed that the system had not been circulating as intended. Although the pump was still churning fresh coolant through the block, the water cavity in the head was nearly dry and thick with buildup of debris and old coolant.
1997 Jeep Cherokee - Keep Your Cool

With the thermostat and pump removed, we noticed that the system had not been circulating as intended. Although the pump was still churning fresh coolant through the block, the water cavity in the head was nearly dry and thick with buildup of debris and old coolant.  View Related Article

 

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