Explorer 2WD V6-245 4.0L (1994)
Housing Assembly HVAC: All Technical Service Bulletins
Air Conditioning - Whistling Noise
Article No.
95-16-15
08/14/95
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AIR CONDITIONING - "WHISTLE" NOISE WITH A/C CONTROLS IN "OFF" OR "MAX A/C" POSITIONS - VEHICLES BUILT FROM
2/11/94 THROUGH 11/1/94
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NOISE - "WHISTLE" - WITH A/C CONTROLS IN "OFF" OR "MAX A/C" MODE - VEHICLES BUILT FROM 2/11/94 THROUGH 11/1/94
LIGHT TRUCK:
1994 EXPLORER, RANGER
ISSUE:
A "whistle" noise may be heard on some vehicles while driving with the A/C controls set in the "OFF" or "MAX A/C" positions. This may be caused by
outside air leaking past the "recirc" door seal.
ACTION:
Replace the "recirc" door with a new "recirc" door which has an improved seal. This new "recirc" door should reduce the possibility of air leaking past
the seal. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
1.
Remove the heater air plenum housing as outlined on Page 12-03B-39 of the 1994 Ranger/Explorer Service Manual.
2.
Disconnect the "recirc" door vacuum motor linkage from the crank arm.
3.
Remove crank arm and "recirc" door.
