Some owners of a 2007-08 full-size utility or pickup may comment about a rattle/popping/snapping type noise in the left center IP air deflector when the blower is on. This condition may be due to the air flow door being loose and vibrating. The noise will be eliminated or reduced if the thumb wheel is slightly rotated to close off the air flow.
To correct this concern, remove the left center air outlet deflector. With the airflow door in the full open position, to allow air flow, install a piece of black foam tape (obtained locally) along the top and bottom of the deflector housing so it just touches the air flow door (fig. 12). The foam tape should be positioned on the side of the air flow door so it does not obstruct the door from closing. With the foam tape properly installed, the air flow door will slightly contact the foam tape when in the full open position (fig. 13), preventing the door from vibrating.
- Thanks to Jim Will
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