# Service bulletin 18400

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: 10012963
- Published by NHTSA: 2005\-04\-05
- Manufacturer's number: 18400
- Manufacturer's date: 2005\-02\-01
- NHTSA component: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM

## NHTSA's summary

FOUR CORNER LOAD LEVELING AIR SUSPENSION MAY EXHIBIT LEVELING CONCERNS, SUCH AS ONE FRONT CORNER DROPPING. INDIVIDUAL AIR SPRINGS AVAILABLE FOR SERVICE. \*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

Suspension, Air suspension

## Vehicles listed

- 2003 to 2004 FORD EXPEDITION
- 2003 to 2004 LINCOLN NAVIGATOR

## Other bulletins for the same vehicles and component

- [061510](/bulletins/10021072.md), 2007-02-27, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. AIR SUSPENSION PERFORMANCE \- HEIGHT SENSOR LINKAGE ARM DISENGAGING. \*KB
- [0454](/bulletins/10008539.md), 2004-08-04, Service bulletin: SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM. AIR SUSPENSION COMPRESSOR NOISE. \*TT
- [03132](/bulletins/10003727.md), 2003-10-29, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. THIS ARTICLE ADDRESSES THE PROPER PROCEDURE TO CLEAR DIAGNOSTIC TROUBLE CODES C1990 OR C1991 FROM THE VEHICLE DYNAMICS MODULE/4\-WHEEL AIR SUSPENSION MODULE. \*TT
- [16762](/bulletins/10002654.md), 2003-09-10, Service bulletin: SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM. RIDE HEIGHT ANOMALIES ON VEHICLES EQUIPPED WITH AIR SUSPENSION, I.E. FRONT SUSPENSION LOWERING WHILE REAR RISES, DUE TO LEAKING SOLENOIDS.
- [16705](/bulletins/10001947.md), 2003-07-28, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. AIR SUSPENSION DIAGNOSIS. \*TT \*JB

JSON: [/v1/bulletins/10012963](/v1/bulletins/10012963)

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