B14-039
November 11, 2014
BTB 00256 (1411)
Steering Vibration/Moan While Turning at Idle or Low Speeds
AFFECTED VEHICLES
| Year | Model | Trim | VIN Range |
| 2010−13 | MDX | ALL | ALL |
SYMPTOM
The vehicle’s body and steering wheel vibrates while it’s at idle or very low speed when turning the steering wheel..
POSSIBLE CAUSES
The high pressure demand from the steering gearbox on the power steering pump causes a vibration in the accessory drive belt system.
CORRECTIVE ACTION
Replace the alternator pulley.
PARTS INFORMATION
| Part Name | Part Number | Quantity |
| Decoupler Alternator Pulley | 31141-RV0-A01
No products found. | 1 |
| Decoupler Alternator Cap | 31142-RV0-A01 | 1 |
TOOL INFORMATION
| Tool Name | Tool Number | Quantity |
| Alternator OAD Pulley Holder | 07AAB-TK8A100 | 1 |
WARRANTY CLAIM INFORMATION
The normal warranty applies.
| Operation Number | Description | Flat Rate Time | Template ID | Failed Part Number |
| 1181A8 | Replace the alternator pulley. | 0.6 hr | 14-039N | 31141-RV0-A01
No products found. |
Defect Code: 00401
Symptom Code: 05501
Skill Level: Repair Technician
REPAIR PROCEDURE
- Remove the engine cover.
- Remove the coolant reservoir, then remove the power steering fluid reservoir from the bracket.
- Remove the pulley locknut with a 22 mm wrench and a 10 mm wrench, then remove the alternator pulley.
- Remove the coolant reservoir, then remove the power steering fluid reservoir from the bracket.
- Remove the pulley locknut with a 22 mm wrench and a 10 mm wrench, then remove the alternator pulley.
- Install the new decoupler alternator pulley by threading it onto the alternator shaft. Then insert the alternator OAD pulley holder into the decoupler pulley.
NOTE: The new decoupler alternator pulley is threaded internally; the nut will no longer be used.
- Hold the alternator OAD pulley holder with a 17 mm wrench. Place a 10 mm deep socket wrench through the center of the alternator OAD pulley holder onto the hex on the end of the alternator shaft, then torque the alternator shaft counterclockwise to 80 N∙m (59 lb-ft).
- Install the new decoupler pulley cap.
NOTE: Make sure the new decoupler pulley cap is installed securely.
- Install the power steering fluid reservoir to the bracket, then install the coolant reservoir.
- Install the A/C suction line to the bracket bolt and torque it to 12 N∙m (8.8 lb-ft).
- Install the drive belt.
- Install the engine cover.
END
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