Technical Service Bulletins
|Publication Date: APRIL 8, 1996|
A “whistle” noise, while driving or idling with the blower motor operating, may be heard on some vehicles. This may be due to a seam leak on the upper plenum assembly case half.
Seal the seam leak area with rope sealer. Refer to the following Service Procedure for details.
- Verify the whistle concern by operating the blower motor and rolling down a window. If the whistle goes away, then the noise is due to a body leak and should be diagnosed accordingly. If the whistle remains, proceed to Step 2.
- Remove the plenum assembly by referring to the 1997 F-150 Service Manual, Page 412-03-20.
- Apply rope sealer to the vertical seam between the upper plenum assembly case halves (Figure 1).
Figure 1 – Article 96-8-16
- Reinstall the plenum assembly.
- Verify the repair.
|PART NUMBER||PART NAME|
|(Obtain Locally)||Rope Sealer|
OTHER APPLICABLE ARTICLES:
Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
|960816A||Remove And Install Evaporator Case And Seal Seams With Rope Sealer||3.2 Hrs.|
|BASIC PART NO.||CONDITION CODE|
208000, 208600, 702100