Drivetrain - Shudder During Low Speed Turns

Classification: TF12-001

Reference: ITB12-069

Date: October 19, 2012

2011 - 2013 M56X AWD; SHUDDER DURING LOW SPEED TURNS

APPLIED VEHICLE: 2011-2013 M56x (Y51) AWD ONLY

APPLIED VIN and DATE: Vehicles built before JN1AY1AR(*)1DM 590016 and April 26, 2012

IF YOU CONFIRM:

A shudder condition is present when performing low speed turns when driving on dry roads/surfaces (i.e. parking lot maneuvers)

AND

The Intelligent All Wheel Drive (AWD) system is NOT engaged by instrument control.

ACTION:

1. Replace the breather tube and related hoses for the A/T and transfer assemblies with the ones listed in PARTS INFORMATION.

^ It is easiest to replace the breather tube and hoses while the transfer assembly is removed.

2. Replace the electric coupling located in the transfer assembly.

^ Refer to the Electronic Service Manual (ESM) as needed.

^ See PARTS INFORMATION.

CAUTION:
Using transfer fluid other than Genuine NISSAN Matic J ATF will cause deterioration in drivability and transfer durability, and may damage the transfer, which is not covered by the INFINITI new vehicle limited warranty.





PARTS INFORMATION





CLAIMS INFORMATION








For tips on coupling replacement, go below.

NOTE:
The following are helpful tips for coupling replacement.

The drive chain, front drive shaft, main shaft, and coupler assembly are removed together:





Use a rubber mallet to tap on the rear of the main shaft,

while

pulling outward on the front drive shaft.

NOTE:
Move the front drive shaft and the main shaft alternately, a little at a time.

The following do not need to be disassembled / replaced as part of the coupler replacement.

^ Front drive shaft (bearings and plug)

^ Oil pump

^ Companion flange (rear bearing, snap ring, spacer, and rear oil seal)

^ Breather tube (on transfer case)

^ Front case (main shaft bearing, snap rings main shaft oil seal, front oil seal, spacer).

NOTE:
^ Make sure to use Anaerobic Liquid Gasket to reseal (reassemble) the case.

^ Permatex(R) 51813 Anaerobic Gasket Maker or equivalent (local source).