Isn't it called a compressor? Found this...
TSB's
Service Bulletin Number: BC1902960601
Bulletin Sequence Number: 12
Date of Bulletin: 9606
NHTSA Item Number: SB047825
Make: FORD
Model: MUSTANG
Year: 1996
Component: AIR CONDITIONER:EVAPORATOR
Summary: A/C EVAPORATOR CORE DISODORIZING PROCESS HAS BEEN DEVELOPED FOR MUSTY - MILDEW TYPE ODORS COMING FROM THE EVAPORATOR HOUSING
Service Bulletin Number: 96144
Bulletin Sequence Number: 29
Date of Bulletin: 9607
NHTSA Item Number: SB048849
Make: FORD
Model: MUSTANG
Year: 1996
Component: AIR CONDITIONER
Summary: A/C MUSTY & MILDEW ODORS- SERVICE PROCEDURE.
Service Bulletin Number: 96155
Bulletin Sequence Number: 30
Date of Bulletin: 9607
NHTSA Item Number: SB048875
Make: FORD
Model: MUSTANG
Year: 1996
Component: AIR CONDITIONER
Summary: FILTERING REFRIGERANT AFTER A/C COMPRESSOR REPLACEMENT.
Service Bulletin Number: 96206
Bulletin Sequence Number: 52
Date of Bulletin: 9609
NHTSA Item Number: SB049536
Make: FORD
Model: MUSTANG
Year: 1996
Component: AIR CONDITIONER
Summary: A/C COMPRESSOR FAILURE DUE TO INSUFFICIENT AMOUNT OF REFRIGERANT OIL IN THE SYSTEM. *TT
Service Bulletin Number: 96226
Bulletin Sequence Number: 65
Date of Bulletin: 9610
NHTSA Item Number: SB050945
Make: FORD
Model: MUSTANG
Year: 1996
Component: AIR CONDITIONER:COMPRESSOR
Summary: AIR CONDITIONING - COMPRESSOR FAILURE - INSUFFICIENT AMOUNT OF REFRIGERANT OIL. *TW
Good luck!
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Travis
T-Bones 1997 Cobra#6342 born 6-11-97
Wht/blk, Pro 5.0,FRPP 4.56's, aluminum driveshaft, FRPP throttle body, C&L 80mm MAF, K&N, Steeda U/D pulleys, Steeda timing adjuster, Borla cat-back, BBK cat H-pipe, SFC's, FRPP pro springs, BBK caster/cambers.
Best 1/8 E.T.-8.983 on street tires