# Service bulletin 996139

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: 606989
- Published by NHTSA: 1999\-09\-09
- Manufacturer's number: 996139
- Manufacturer's date: 1999\-05\-01
- NHTSA component: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:DRIVELINE

## NHTSA's summary

CONCERNS WITH FRONT DIFFERENTIAL NOISE. \*TT

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline, Differential

## Vehicles listed

- 1997 to 1999 FORD EXPEDITION
- 1997 to 1999 FORD F\-150
- 1997 to 1999 FORD F\-250
- 1997 LINCOLN NAVIGATOR
- 1998 to 1999 LINCOLN NAVIGATOR

## Other bulletins for the same vehicles and component

- [15897](/bulletins/637779.md), 2002-12-06, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SUBJECT REGARDING DRIVELINE ANGLE\-RELATED VIBRATION AT VARIOUS SPEEDS AND LOAD CONDITIONS. \*TT
- [15319](/bulletins/630231.md), 2002-04-15, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SOME VEHICLES BUILT BEFORE JUNE 8, 2000 AND EQUIPPED WITH A4WD MAY EXHIBIT A HIGH\-SPEED MOAN OR DRIVELINE PULSATION/SHUDDER. \*TT
- [12590](/bulletins/6091822.md), 2000-11-15, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SOME 4X4 VEHICLES MAY EXHIBIT A MOAN NOISE FROM THE FRONT DIFFERENTIAL WHEN THE VEHICLE IS OPERATING IN 4X2 MODE AND GOES AWAY WHEN OPERATING IN 4X4 MODE. \*TT
- [12757](/bulletins/607074.md), 2000-11-03, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SOME VEHICLES BUILT AFTER 2/1/1999 EQUIPPED WITH 5.4L\-2V ENGINES AND 4R100 TRANSMISSIONS MAY EXHIBIT A DRIVELINE CLUNK / JERK DURING TIP\-IN FROM CLOSED THROTTLE AT VEHICLE SPEEDS ABOVE 43 MPH IN 4TH GEAR GEAR AND NORMAL TRANSMISSION OPERATING TEMPERATURES. \*TT
- [99143](/bulletins/608419.md), 1999-11-24, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SOME 4X4 VEHICLES BUILT WITH CENTER DISCONNECT FRONT AXLES MAY EXHIBIT A MOANING NOISE FROM THE FRONT DIFFERENTIAL WHILE OPERATING IN 4X2 MODE. \*TT
- [996113](/bulletins/606979.md), 1999-09-09, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:DRIVELINE. EXPERIENCING FRONT DIFFERENTIAL NOISE. \*TT
- [6304](/bulletins/606785.md), 1999-09-02, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SOME VEHICLES MAY EXPERIENCE A DRIVELINE CLUNK / JERK DURING TIP\-IN. \*TT
- [5955](/bulletins/605263.md), 1999-06-07, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SUBJECT REGARDING FRONT DIFFERENTIAL NOISE INVESTIGATION. \*TT

JSON: [/v1/bulletins/606989](/v1/bulletins/606989)

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