Fulltext TSBs

Technical Service Bulletins

TSB
96-8-16
  • NOISE – “WHISTLE” WHILE DRIVING WITH BLOWER MOTOR OPERATING – VEHICLES BUILT THROUGH 1/20/96
Publication Date: APRIL 8, 1996

LIGHT TRUCK:
1997 F-150

ISSUE:

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.

ACTION:

Seal the seam leak area with rope sealer. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

  1. 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.
  2. Remove the plenum assembly by referring to the 1997 F-150 Service Manual, Page 412-03-20.
  3. Apply rope sealer to the vertical seam between the upper plenum assembly case halves (Figure 1).


    Figure 1 – Article 96-8-16

  4. Reinstall the plenum assembly.
  5. Verify the repair.

PART NUMBERPART NAME
(Obtain Locally)Rope Sealer

OTHER APPLICABLE ARTICLES:

NONE

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
960816ARemove And Install Evaporator Case And Seal Seams With Rope Sealer3.2 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
1985014

OASIS CODES:

208000, 208600, 702100