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TSB
05-17-8 CHIRP NOISE FROM FEAD BELT WHEN A/C COMPRESSOR IS ENGAGING
Publication Date: August 17, 2005
FORD: 2002-2005 Explorer
LINCOLN: 2003-2005 Aviator
MERCURY: 2002-2005 Mountaineer
ISSUE:
Some 2002-2005 Explorer/Mountaineer and 2003-2005 Aviator vehicles may exhibit a chirp noise from the front end accessory drive (FEAD) belt when the A/C compressor is engaging.
ACTION:
Verify concern. Replace the A/C compressor clutch pulley, and set the clutch air gap to the specification listed in this TSB (the Workshop Manual specification is being updated). Refer to the following Service Procedure.
SERVICE PROCEDURE
Recover the refrigerant.
Remove the A/C compressor. Refer to Workshop Manual Section 412.
Using the special tool 412-098, hold the A/C clutch plate and remove the clutch nut.
Remove the A/C clutch disc and hub.
Remove the A/C clutch hub spacer.
Remove the A/C compressor pulley snap ring.
CAUTION: DO NOT USE AIR TOOLS. DAMAGE TO THE A/C CLUTCH PULLEY OR A/C COMPRESSOR MAY RESULT.
Using the special tool 412-001, remove the A/C clutch pulley.
Install the new A/C clutch pulley using special tool 412-109.
Reinstall the A/C compressor pulley snap ring.
Reinstall the original A/C clutch hub spacer.
Reinstall the A/C clutch disc and hub.
Using special tool 412-098, hold the A/C clutch plate and reinstall the A/C clutch nut. Tighten to 14 lb-ft (19 N-m).
Measure and adjust the clutch air gap to 0.010 - 0.024" (0.254 - 0.610 mm), by adding or removing A/C clutch disc and hub spacers.
Reinstall the A/C compressor.
Recharge the system.
PART NUMBER PART NAME
5C2Z-19D784-A A/C Clutch Pulley
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION DESCRIPTION TIME
051708A 2002-2005 Explorer/Mountaineer 4.0L SOHC: Replace The A/C Compressor Clutch Pulley (Do Not Use With 19700A, 19700A4, 19700AZU, 19700R) 1.1 Hrs.
051708B 2002-2005 Explorer/Mountaineer 4.6L SOHC: Replace The A/C Compressor Clutch Pulley (Do Not Use With 19700A, 19700A4, 19700AZU, 19700R) 1.2 Hrs.
051708C 2003-2005 Aviator: Replace The A/C Compressor Clutch Pulley (Do Not Use With 19700A, 19700A4, 19700AZU, 19700R) 1.4 Hrs.
DEALER CODING
BASIC PART NO. CONDITION CODE
19D784 42
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NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.
Copyright © 2005 Ford Motor Company
