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Service bulletin 4190

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 id10022697
Published by NHTSA2007-09-20
Manufacturer's number4190
NHTSA componentSTEERING:RACK AND PINION

NHTSA's summary

ENGINEERING INFORMATION REQUEST DURING REAR RING AND PINION REPLACEMENT. *NJ

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
CADILLAC ESCALADE2007, 2008
CHEVROLET AVALANCHE 15002007, 2008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO2007
CHEVROLET SILVERADO 15002008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002007, 2008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 25002008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2007, 2008
GMC SIERRA2008
GMC SIERRA 15002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002007 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2007, 2008

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

Other bulletins for the same vehicles and component
SB-10-02-33-0012011-03-28. Service bulletin. BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT. DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK. TECHNICIANS HAVE BEEN REPLACING ENTIRE STEERING GEARS DUE TO NOT BEING ABLE TO SERVICE JUST LEAKING PITMAN SHAFT SEAL. *PE UPDATED 5/9/11. *PE
0702320022007-04-26. Service bulletin. EI07082 - POWER STEERING FLUID LEAKING FROM POWER STEERING GEAR/RACK ASSEMBLY. *KB UPDATED ON 09/21/07. *NJ UPDATED 10/5/07. *NJ UPDATED 2/15/08. *NJ UPDATED 5/19/08. *NJ UPDATED 2/17/10. *PE UPDATED 3/30/11. *PE