B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
17. Remove the IAC valve, the DPFE sensor and EGR solenoid as required.
18. Remove the throttle body.
19. Remove the throttle body gasket (TB gasket).
20. Remove the IAC gasket.
21. Install in the reverse order of removal by taking care of the following note.