A/C - Tapping Noise When Compressor Is On

MODEL: 2007-2008 ENTOURAGE

NUMBER: 11-HA-001

GROUP: HVAC

DATE: APRIL 2011

SUBJECT
ENTOURAGE A/C COMPRESSOR CLUTCH
DISC AND HUB REPLACEMENT

This TSB supersedes TSB # 07-97-001 to include updates to the applicable vehicle production range and revisions to the service procedure.

Description:
Some Entourage vehicles may experience an abnormal tapping noise during A/C compressor use. Installation of the new Disc & Hub Assembly will reduce the transmitted noise





Applicable Vehicles:





Parts Information:





Warranty Information

Remove the lower engine shield from the wheel well area to expose the A/C compressor / drive belt area, as shown in the photo.

Use SST number 09977-29000 to hold the disc + hub assembly.

Service Procedure:





1. Lift up the vehicle on a lift and remove the right front tire and wheel assembly.





2. Remove the lower engine shield from the wheel well area to expose the A/C compressor / drive belt area, as shown in the photo.





3. Use SST number 09977-29000 to hold the disc + hub assembly.





4. Using hand tools, carefully remove the A/C compressors original disc + hub assembly.





5. Remove the disc + hub assembly by sliding it off the compressor shaft. No special tool or puller is required.





6. Transfer the original disc + hub clearance adjustment washer to the new redesigned disc + hub assembly.





7. Reinstall the new redesigned disc + hub assembly.

^ Lightly tighten the assembly bolt using hand tools and SST 09977-29000.

^ Finish tightening using a torque wrench set to 7.2~10.8 lb-ft (86.4 to 129.6 lb-in).

8. Verify repair.

1) Start the engine with the A/C off.

^ Check that the newly installed redesigned disc + hub assembly does not rub or drag on the compressor pulley.

^ The disc + hub should NOT turn with A/C off. If disc + hub turns with A/C off, recheck your work.

^ Air gap specification between disc + hub assembly to the pulley is (0.013 +/- 0.02 in.).

2) Turn On the A/C and check that the disc + hub assembly engages the compressor pulley without slipping.

^ If slipping occurs, recheck your work

3) Verify that the original concern of knocking noise is eliminated.

4) Reinstall the engine shield and wheel assembly.

^ Torque wheel nuts to 65.1 ~ 79.5 lb-ft.