intellidog.com › dieselmann › 60bulletin6.0 PowerStroke bulletins - Intellidog.com The coolant bottle cap should be checked to see if it is capable of holding 16 PSI, and it is sealing properly on the coolant bottle. Pressure test the cooling system to verify there are no leaks. Note: It is advised to either disconnect the right exhaust manifold from the right side turbo Y-pipe, or to raise the rear of the vehicle and remove ...