Drivetrain - Front Hub High Pitched Squeal Or Whistle

Classification:
FA97-001a

Reference:
NTB97-014a

Date:
February 1, 1998

This bulletin supersedes NTB97-014/FA97-001. This bulletin updates the Applied Vehicle information, Service Procedure and Parts Information.

APPLIED VEHICLE:
1996-98 PATHFINDER (R50)

APPLIED VIN:
JNBARD57-WW230881

APPLIED DATE:
Vehicles built before September 13, 1997

SERVICE INFORMATION

If a 1996-98 Pathfinder vehicle exhibits a high pitch squeal or whistle from the front hub/brake area, the cause may be the front hub dust seal This noise, can be heard while driving next to a wall where the sound is, reflected. The noise is also more likely to be heard after several miles with the front wheels at normal operating temperature. A countermeasure front hub baffle plate is available to resolve these incidents. The countermeasure baffle plates are modified to also function as dust seals.

SERVICE PROCEDURES

1. To confirm the noise is not a brake pad squeal, drive the vehicle next to a wall at 1O-30 mph If you hear the high pitched or whistle lightly touch the brakes and listen a change in the noise.

A. If the noise changes or is eliminated, the cause is likely a brake pad squeal.
B. If the noise does not change, go to step 2.

NOTE:
You may need to perform this test more than once to make sure the vehicle and brakes are at normal operating temperature.

2. Remove and discard the front left and right side dust seals.





3. Replace the left and right baffle plates with the countermeasure parts.





PARTS INFORMATION

CLAIMS INFORMATION

When applicable standard claims coding applies.