VEHICLE APPLICATIONS: 1980-1986 for Ford Bronco 1992-2011 for Ford Crown Victoria 1980-1983 for Ford F-100 1980-1986 for Ford F-150 1980-1986 for Ford F-250 1980-1986 for Ford F-350 1979-1982 for Ford LTD 1987-1991 for Ford LTD Crown Victoria 1980-1983 for Lincoln Mark VI 1981-1997 for Lincoln Town Car 1979-2011 for Mercury Grand Marquis REFERENCE OEM PART NUMBER: EOTZ 19834 A, 615-00463, EOTZ 19834 A, 1W7Z 19805 BA, MM-929, PM287 15-80094 COMMON FAULTS AND ANALYSIS: 1.Blower fan does not move: The fan is used for a long time, which causes the friction coefficient between the rotor and the bearing to increase, and the rotor is blocked or even stuck, causing the coil to be overheated and damaged. 2.The fan does not turn, but there is a loud buzz: This fault is most common on capacitor-activated blower, mainly due to lack of capacity or severe leakage of capacitors, or damage to the startup group.