Drivetrain - Rear Axle Hub Bearing Noise
TSB 05-25-812/26/05
NOISE FROM REAR WHEEL HUB BEARINGS
FORD:
2002-2005 Explorer
LINCOLN:
2003-2005 Aviator
MERCURY:
2002-2005 Mountaineer
This article supersedes TSB 05-17-10 to update the Service Procedure.
ISSUE
Some 2002-2005 Explorer 4dr/Mountaineer and 2003-2005 Aviator vehicles may exhibit a noise from the rear wheel hub bearings. Previous service procedures required service replacement of the wheel hub bearing assembly, base part (1109). This new service procedure allows replacement at a lower service level of the wheel bearing, base part (1215) to repair the noise condition.
ACTION
Replace the rear hub bearing and wheel bearing retainer ring. Refer to the following Service Procedure.
SERVICE PROCEDURE
CAUTION
SUSPENSION FASTENERS ARE CRITICAL.
WHEN REPLACING SUSPENSION FASTENERS USE ORIGINAL EQUIPMENT FASTENERS, OR FASTENERS OF EQUIVALENT QUALITY AND DESIGN. DO NOT INSTALL A REPLACEMENT FASTENER OF LESSER QUALITY OR DIFFERENT DESIGN. PROPER TORQUE VALUES MUST BE OBSERVED DURING REASSEMBLY TO ENSURE CORRECT RETENTION OF ALL COMPONENTS. MAKE SURE THE FASTENERS ARE REINSTALLED IN THE SAME ORIENTATION AS WHEN REMOVED.
CAUTION
DO NOT LOOSEN THE AXLE WHEEL HUB RETAINER UNTIL THE WHEEL AND TIRE ARE REMOVED FROM THE VEHICLE. WHEEL BEARING DAMAGE WILL OCCUR IF THE WHEEL BEARING IS UNLOADED WITH THE WEIGHT OF THE VEHICLE APPLIED.
NOTE
HAVE AN ASSISTANT PRESS THE BRAKE PEDAL TO KEEP THE AXLE FROM TURNING.
1. Remove the axle-to-wheel hub retainer nut and washer (Figure 1).
Discard the nut. When reinstalling at end of procedure, tighten to 203 lb-ft (275 N.m).
2. Remove the bolt and disconnect the wheel speed sensor (Figure 2). To install, tighten to 71 lb-in (8 N.m).
3. Remove the parking brake shoes. For additional information, refer to Workshop Manual, Section 206-05.
4. Remove and discard the toe link-to-wheel knuckle nut. To install, tighten to 66 lb-ft (90 N.m).
CAUTION
DO NOT DAMAGE THE BOOT WHILE SEPARATING THE TOE LINK FROM THE WHEEL KNUCKLE.
5. Remove the bolt and separate the toe link from the wheel knuckle.
6. Remove and discard the upper arm-to-wheel knuckle nut. To install, tighten to 66 lb-ft (90 N.m).
CAUTION
DO NOT DAMAGE THE BOOT WHILE SEPARATING THE BALL JOINT FROM THE WHEEL KNUCKLE.
7. Remove the bolt and separate the upper arm from the wheel knuckle.
8. Using the Special Tool 205-D070 (D93P-1175-B), or equivalent, press the outboard CV joint until it is loose from the hub (Figure 3).
9. Remove and discard the lower arm-to-wheel knuckle nut. To install, tighten to 111 lb-ft (150 N.m).
10. Remove the lower arm-to-wheel knuckle bolt.
11. Remove the wheel knuckle.
12. Remove the three (3) brake disc shield-to-wheel knuckle bolts (Figure 4). To install, tighten to 10 lb-ft (13 N.m)
13. Using a suitable press, remove the wheel hub (Figure 5).
14. Remove the brake disc shield.
NOTE
THIS STEP MAY NOT BE NECESSARY IF THE INNER WHEEL BEARING RACE REMAINS IN THE WHEEL KNUCKLE AFTER REMOVING THE WHEEL HUB.
15. Using Special Tool 205-D002, or equivalent, press the inner wheel bearing race from the wheel hub (Figure 6).
16. Remove the wheel bearing retainer ring.
17. Using a suitable press, remove and discard the wheel bearing.
18. To install, reverse the removal procedure.
NOTE
DURING REASSEMBLY ALWAYS INSTALL NEW:
^ AXLE-TO-WHEEL HUB RETAINER NUT
^ TOE LINK-TO-WHEEL KNUCKLE NUT
^ UPPER ARM-TO-WHEEL KNUCKLE NUT
^ LOWER ARM-TO-WHEEL KNUCKLE NUT
^ WHEEL BEARING
REFER TO PART CATALOG FOR CORRECT APPLICATION AND PART NUMBER.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION DESCRIPTION TIME
052508A 2002-2005 1.5 Hrs.
Explorer/Mountaineer
2003-2005 Aviator:
Replace One Rear Wheel
Bearing (Do Not Use With
1225A, 1225AT)
052508B 2002-2005 2.7 Hrs.
Explorer/Mountaineer
2003-2005 Aviator:
Replace Both Rear Wheel
Bearings (Do Not Use With
1225A, 1225AT)
DEALER CODING
CONDITION
BASIC PART NO. CODE
1215 30
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