F 450 2WD Super Duty V8-5.4L SOHC VIN L (2003)
19. Disconnect the evaporative emission canister purge valve vacuum hose from the throttle body adapter.
20. Disconnect the brake booster vacuum hose and main vacuum harness from the throttle body adapter.
21. Disconnect the IAC electrical connector.
Vehicles with EGR system
22. Position the exhaust manifold to EGR valve tube aside.
^
Disconnect the upper fitting.
^
Loosen the lower fitting.
^
Position the exhaust manifold to EGR valve tube aside.