Compressor Clutch: Service and Repair
SPECIAL SERVICE TOOL(S) REQUIREDSpanner Wrench:
Compressor Clutch Holding Tool:
REMOVAL
NOTE: Before disassembling the A/C compressor/clutch assembly for repair, it is important to check the A/C clutch air gap. This will help determine if the clutch is not engaging or if the A/C compressor is failing internally.
2.3L And 3.0L Shown; 4.0L Typical:
1. Remove the clutch hub retaining bolt. Use Spanner Wrench T70P-4067-A (Compressor Clutch Holding Tool T94P-19703-AH). Note position of the coil electrical connector.
2. Pull clutch hub and shims from compressor shaft. If hub cannot be pulled from compressor shaft, screw an 8 mm bolt into the shaft hole of the clutch hub to force the hub from the shaft.
3. Remove pulley retaining snap ring.
4. Pull the pulley and A/C clutch pulley assembly from compressor.
INSTALLATION
1. Clean pulley bearing surface of A/C compressor head to remove any dirt or corrosion.
2. Install pulley and A/C compressor pulley bearing on A/C compressor. The bearing is a slip-fit on the A/C compressor head and, if properly aligned, it should slip on easily.
3. Install pulley retaining snap ring with bevel side of snap ring out.
4. Place one nominal thickness spacer shim on the end of the splined shaft and slide the hub on the end of the compressor shaft.
5. Thread a new 8 mm hub retaining bolt into end of compressor shaft. Tighten hub retaining bolt to 11-14 Nm (8-10 lb-ft). DO NOT USE AIR TOOLS.
6. Check clutch air gap between clutch disc and pulley mating surfaces with a feeler gauge. The air gap should be between 0.35 and 0.85 mm (0.014 and 0.033 inch). Check at three locations equally spaced around the A/C clutch pulley.
7. If clutch air gap is not within 0.35 to 0.85 mm (0.014 to 0.033 inch), repeat Steps 4 through 6 with various thickness shims until air gap is within specified limits.
8. Leak test, evacuate, and charge the A/C system. Service and Repair
9. When installing a new A/C clutch, cycle it ten times at idle to burnish the A/C clutch and prevent slippage.