Steering Vibration/Moan While Turning at Idle or Low Speeds – 2010-2013 Acura MDX

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	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

 

Defect Code: 00401
Symptom Code: 05501
Skill Level: Repair Technician

 

REPAIR PROCEDURE

1. Remove the engine cover.
2. Remove the coolant reservoir, then remove the power steering fluid reservoir from the bracket.
3. Remove the pulley locknut with a 22 mm wrench and a 10 mm wrench, then remove the alternator pulley.

 

4. Remove the coolant reservoir, then remove the power steering fluid reservoir from the bracket.
5. Remove the pulley locknut with a 22 mm wrench and a 10 mm wrench, then remove the alternator pulley.

 

6. 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.

 

7. 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).

 

8. Install the new decoupler pulley cap.

NOTE: Make sure the new decoupler pulley cap is installed securely.

 

9. Install the power steering fluid reservoir to the bracket, then install the coolant reservoir.
10. Install the A/C suction line to the bracket bolt and torque it to 12 N∙m (8.8 lb-ft).
11. Install the drive belt.
12. Install the engine cover.

END