Ford 2003 Mustang Workshop Manual page 1524

52. Remove the oil cooler.
53. Remove the bolts, the oil filter adapter and the gasket.
Discard the gasket.
54. Clean and inspect the oil filter adapter and the oil cooler.
Plug the oil cooler coolant lines.
Flush the adapter and cooler with parts cleaner. If metal particles are present, install a
new oil filter adapter and oil cooler.
55. Remove the power steering pressure hose.
56. Remove the bolts and the power steering pump.