# Service bulletin LTB00553NAS1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10214090
- Published by NHTSA: 2022\-06\-13
- Manufacturer's number: LTB00553NAS1
- Manufacturer's date: 2013\-09\-05
- NHTSA component: EQUIPMENT; POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\)

## NHTSA's summary

Technical Bulletin: Transfer Case Noise

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10214090-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10214090-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Transmission and driveline, Transfer case

## Vehicles listed

- 2013 LAND ROVER RANGE ROVER

## Other bulletins for the same vehicles and component

- [LTB00906NAS3](/bulletins/10106254.md), 2017-06-13, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). SITUATION: ON VEHICLES FITTED WITH THE TWIN SPEED TRANSFER CASE, A JUDDER MAY BE FELT FROM UNDERNEATH THE VEHICLE WHEN STEERING AT LOW VEHICLE SPEEDS, SUCH AS TURNING LEFT OR RIGHT AT AN INTERSECTION.
- [LTB00553NAS2](/bulletins/10105819.md), 2017-06-09, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). "SITUATION: A RUBBING/SCRAPING/DRONE\-TYPE NOISE AND/OR A VIBRATION MAY APPEAR TO BE EVIDENT FROM THE FRONT LEFT\-HAND CORNER OF THE VEHICLE. THE NOISE MAY ALSO BE DESCRIBED AS SIMILAR TO A BRAKE RUBBING OR WHEEL BEARING NOISE AND CAN BE VARIABLE FROM VEHICLE TO VEHICLE. THE ISSUE CAN OCCUR AT DIFFERENT SPEEDS/GEARS AND IN STEADY STATE DRIVING CONDITIONS UP TO 50/60MPH \(80/100KM/H\). THE NOISE IN MOST CASES IS MORE PROMINENT IN SECOND GEAR COAST DOWN, PARTICULARLY AROUND 12MPH \(20KM/H\). TO CONFIRM THE TRANSFER CASE IS THE ROOT CAUSE, THE NOISE CAN LISTENED TO USING A ‘CHASSIS EAR’ FIXED TO FRONT DIFFERENTIAL RIGHT\-HAND MOUNT. CAUSE: THIS MAY BE CAUSED BY A CHORDAL VIBRATION OF THE TRANSFER CASE CHAIN ON COAST/OVERRUN."
- [SSM63897](/bulletins/10101682.md), 2017-06-01, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). "ISSUE: A NOISE WHICH CAN BE DESCRIBED AS A RUBBING/SCRAPPING/DRONE OR IN SOME CASES MAYBE REPORTED AS A VIBRATION IS FOUND TO BE EVIDENT FROM THE LEFT HAND FRONT CORNER OF THE VEHICLE. THE NOISE CAN ALSO BE DESCRIBED AS SIMILAR TO A BRAKE RUBBING OR WHEEL BEARING NOISE AND CAN BE VARIABLE FROM VEHICLE TO VEHICLE. THE ISSUE CAN OCCUR AT DIFFERENT SPEEDS/GEARS AND IN STEADY STATE DRIVING CONDITIONS UP TO 50/60MPH \(80/100KM/H\), HOWEVER THE NOISE IN MOST CASES IS MORE PROMINENT IN 2ND GEAR COAST DOWN PARTICULARLY AROUND 12MPH \(20KM/H\). TO CONFIRM, THE NOISE CAN LISTENED TO USING ‘CHASSIS EAR’ FIXED TO FRONT DIFFERENTIAL RH MOUNT. CAUSE: CHORDAL VIBRATION OF THE TRANSFER CASE CHAIN ON COAST/OVERRUN. FITMENT OF THE FRONT DIFFERENTIAL SUPPORT BRACKET MAY ELIMINATE THE NOISE WITHOUT THE NEED TO REPLACE THE COMPLETE TRANSFER BOX ASSEMBLY"
- [SSM67137](/bulletins/10100944.md), 2017-05-26, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). "ISSUE: A RUBBING/SCRAPING/DRONE\-TYPE NOISE AND/OR A VIBRATION MAY APPEAR TO BE EVIDENT FROM THE FRONT LEFTHAND CORNER OF THE VEHICLE. CAUSE: THIS MAY BE CAUSED BY A CHORDAL VIBRATION OF THE TRANSFER CASE CHAIN ON COAST/OVERRUN."
- [LTB\-00553](/bulletins/10053923.md), 2013-12-04, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\). LAND ROVER: A NOISE, ON SOME VEHICLES, COMING FROM FRONT LEFT HAND CORNER, LIKE A RUBBING, SCRAPING, OR DRONE TYPE AND ALSO A VIBRATION, DUE TO TRANSFER CASE CHAIN ON COAST, OVERRUN BY CHORDAL VIBRATION. MODEL 2013 RANGE ROVER. \*PE

JSON: [/v1/bulletins/10214090](/v1/bulletins/10214090)

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