F 450 4WD Super Duty V8-6.0L DSL Turbo VIN P (2003)
1. Inspect the cooling system as per the Workshop Manual (WSM), Section 303-03 for external leaks, oil or fuel contamination, and/or diagnostic
trouble codes (DTCs). If external coolant leaks, oil or fuel contamination of coolant, and/or DTC(s) P0480 / P0528 are found, do not continue with
this procedure. Refer to WSM, Section 303-03, Powertrain Controls/Emissions Diagnosis (PC/ED) or any other applicable articles as needed.
2. Test the degas bottle and pressure cap for proper operation of the pressure cap and its seal to the degas bottle:
a. Do not remove the pressure cap.
