Below is a how to plus a TSB from Ford concerning the IWE solenoid. The IWE solenoid controls the front hubs on Ford F-150's. This write up covers only 2004-2005 Ford F-150's and 2006 Lincoln Mark LT's.
New style solenoid: (Ford p/n: 6L3Z-9E441-A)
Old style IWE solenoid:
The new and old together:
The new IWE installed:
TSB from Ford Titled: INTERMITTENT IWE NOISE, 4WDH LIGHT AND/OR 4X4 SYSTEM INOPERATIVE, DTCS—C1979 AND
C1980. TSB # 06-08-15.
New style solenoid: (Ford p/n: 6L3Z-9E441-A)
Old style IWE solenoid:
The new and old together:
The new IWE installed:
TSB from Ford Titled: INTERMITTENT IWE NOISE, 4WDH LIGHT AND/OR 4X4 SYSTEM INOPERATIVE, DTCS—C1979 AND
C1980. TSB # 06-08-15.