TSB: M002/96

WHINING NOISE FROM REAR WHEEL HUB BEARING

APPLICABLE MODELS/VINS

1996 Protege vehicles with a VIN of JM1BB14**T0326198 and lower.

DESCRIPTION

A whining noise (similar to transaxle or final gear noise) may be heard from the rear of the vehicle. This noise:

• Starts at approximately 25 mph (40 km/h)

• Peaks at 40 - 50 mph (60 - 80 km/h)

• Is loudest when decelerating around 50 - 30 mph (80 - 50 km/h)

• Diminishes above 50 mph (80 km/h).

The noise is caused by improper machining on the inner and outer races of the rear wheel hub bearing. Customers complaining of this noise, should have the vehicle inspected and if necessary, the rear wheel hub replaced.

NOTE: Two vendors (KOYO SEIKO and NTN) supply rear wheel hub bearings for this model. ONLY THOSE BEARINGS SUPPLIED BY KOYO SEIKO ARE INVOLVED IN THIS REPAIR.

REPAIR PROCEDURES

1. Verify the complaint.

2. Remove the rear wheels, drums (or disc plates) (both sides).

3. Check the rear hubs for identification. Refer to Fig. 1.

• If the rear hubs were manufactured by KOYO SEIKO replace the hubs.

• If the rear hubs were manufactured by NTN, refer to the workshop manual for diagnostic and repair procedure.

Fig. 1

PARTS INFORMATION

WARRANTY INFORMATION

(Applies To Verified Customer Complaints On Vehicles Covered Under Normal Warranty. Refer To The SRT Microfiche For Warranty Term Information.)

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Warranty Type

A

Symptom Code

82

Damage Code

9E

Part Number Main Cause

B455 26 15XA or B603 26 15XB

Quantity

1

Authorization Number

B6020A

Operation Number/ Labor Hrs.

M0314ARX / 0.4Hrs. Drum, One Side M0314CRX / 0.6Hrs. Drum, Two Sides M0314ERX / 0.5Hrs. Disc, One Side M0314FRX / 0.8Hrs. Disc, Two Sides