GM/Detroit 6.5L – DIESEL SURGE TANK

The diesel engine uses a cooling system with a surge tank. The pressure cap for the diesel engine is different than the gasoline engine pressure cap and is located on the surge tank. The surge tank used with the diesel engine cooling system is pressurized. Coolant circulates through the surge tank to allow any air that is in the system to be removed and to provide room for the coolant to expand when the coolant is hot.

 

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