One possibility:

OASIS SPECIAL SERVICE MESSAGE NUMBER: 17217
MESSAGE TITLE: 2002-2004 EXPLORER 4DR/MOUNTAINEER - A/C HOOT ON ACCELERATION - HIGH AMBIENT TEMPERATURE

APPLICABLE VEHICLES :
2002 - 2004 TRUCK : 00070 MOUNTAINEER 00134 EXPLORER 4DR

OASIS MESSAGE :
SOME 2002-2004 EXPLORER 4DR/MOUNTAINEER VEHICLES MAY EXHIBIT A BRIEF HOOTING
NOISE DURING LIGHT LOAD ACCELERATION AT LOW SPEEDS, FROM 1000-1300 RPM. TO
DUPLICATE, OUTSIDE TEMPERATURES TYPICALLY MUST BE 85 DEGREES FAHRENHEIT (29
CELSIUS) OR HIGHER WITH HIGH HUMIDITY. TO SERVICE, PERFORM NORMAL
DIAGNOSTICS. IF A SPECIFIC ROOT CAUSE IS NOT IDENTIFIED, BE AWARE THAT
ENGINEERING IS CURRENTLY INVESTIGATING VIA THE QUICKER SERVICE FIX (QSF)
PROCESS. A SERVICE PROCEDURE WILL BE PUBLISHED AS SOON AS IT BECOMES
AVAILABLE. PLEASE CONTINUE TO SUBMIT CONCERN REPORTS (EDSR) FOR ANY VEHICLE
WHICH EXHIBITS THIS CONDITION. MONITOR OASIS FOR UPDATES.

Steve