Service bulletin 4638
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 | 10021152 |
| Published by NHTSA | 2007-03-14 |
| Manufacturer's number | 4638 |
| Manufacturer's date | 2006-06-01 |
| NHTSA component | STEERING:HYDRAULIC POWER ASSIST:PUMP |
NHTSA's summary
REDUCED STEERING ASSIST FROM TRW POWER STEERING PUMPS. FREIGHTLINER. MODELS FLD CONVENTIONAL, CENTURY CLASS CONVENTIONAL, COLUMBIA, AND CORONADO. *KB
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
Steering, Power steering
| UNKNOWN UNKNOWN |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.