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Service bulletin 46-45

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10026868
Published by NHTSA2008-12-31
Manufacturer's number46-45
Manufacturer's date2009-12-01
ReplacesSB-46-45
NHTSA componentSTEERING:RACK AND PINION

NHTSA's summary

FREIGHTLINER: TIGHTENING OF RACK AND PINION TUBE FITTINGS ON POWER ASSIST LINES IS PROHIBITED. SOME CENTURY CLASS, COLUMBIA AND CASCADIA TRUCKS W/RACK & PINION STEERING GEARS MAY EXHIBIT LEAKAGE FROM THE TUBE FITTINGS ON THE POWER ASSIST HARD LINES OF THE GEAR. *PE UPDATED 7/21/10. NO MODEL YEARS LISTED. *PE

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, Steering gear

Vehicles listed
FREIGHTLINER CASCADIA2008
FREIGHTLINER CENTURY CLASS2008
FREIGHTLINER COLUMBIA2008

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
11V5140002011-10-13. STEERING:RACK AND PINION
09V3570002009-09-16. STEERING:RACK AND PINION
07V5920002007-12-21. STEERING:GEAR BOX:SHAFT SECTOR

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SB-46-482010-07-21. Service bulletin. FREIGHTLINER: TRW TAS85 STEERING GEAR INTERNAL LEAKAGE TEST. SOME TRW TAS85 STEERING GEARS HAVE BEEN EQUIPPED WITH AN INTERNAL RELIEF VALVE. THESE STEERING GEARS ARE TYPICALLY INSTALLED WITH POWER STEERING PUMPS THAT HAVE A PRESSURE RELIEF RATING GREATER THAN 2175 PSI (150 BAR). THE INTERNAL RELIEF VALVE LIMITS MAXIMUM SUPPLY PRESSURE TO PROTECT THE STEERING GEAR. MODELS FLD CONVENTIONAL, CENTURY CLASS CONVENTIONAL, COLUMBIA, CORONADO, BUSINESS CLASS M2 AND CASCADIA. NO MODEL YEARS LISTED. *PE
SB-46-472010-01-13. Service bulletin. FREIGHTLINER TRUCK: INNER TIE ROD INSPECTION AND REPAIR, RACK AND PINION GEAR. INCREASED LENGTH OF THE DRIVER SIDE INNER TIE ROD (IF THE INNER TIE ROD UNTHREADS FROM THE RACK) MAY CAUSE ABNORMAL STEER TIRE WEAR DUE TO HIGH TOE IN OR AN INABILITY TO MAINTAIN CORRECT TOE IN ADJUSTMENT. NO MODEL YEARS LISTED. *PE