F 150 4WD V8-5.4L Flex Fuel (2008)
Air Door Actuator / Motor: Customer Interest
A/C - Grinding Noise When Changing Modes
TSB 08-8-9
04/28/08
GRINDING NOISE FROM CLIMATE CONTROL -
CHANGING AIR DISTRIBUTION MODES - BUILT
AFTER 11/29/2005
FORD:
2005-2008 F-150
LINCOLN:
2006-2008 Mark LT
ISSUE
Some 2005-2008 F-150 (excludes Heritage) and 2006-2008 Lincoln Mark LT vehicles built after 11/29/2005 may exhibit a grinding noise from the
climate control system while changing air distribution modes.
ACTION
Perform the following Service Procedure to correct the condition.
SERVICE PROCEDURE
1.
Set control head to panel mode.
NOTE
DO NOT ENERGIZE THE MODE DOOR MOTOR WITHOUT IT BEING CONNECTED TO THE UPPER PLENUM.
2.
Leaving the motor plugged in and installed to the cam plate, remove the four bolts that attach the cam plate to the upper plenum. (Figure 1)
3.
Remove cam plate.
4.
Remove cam.
5.
Clean all existing lube from cam.
