C 3500 Truck 2WD V8-454 7.4L (1990)
Steering Gear Pinion Valve: All Technical Service Bulletins
P/S - Reduced Assist When Cold, New O Rings
Number: 92-333-3B
Section: 3B
Date: DEC. 1992
Corporate Bulletin No.: 263202R
ASE No.: A4
Subject:
REDUCED POWER STEERING ASSIST WHEN COLD
Model and Year:
1988-92 C/K TRUCKS
Owners of some 1988-92 C/K trucks equipped with power steering may comment that during a cold start condition there is reduced power steering assist.
This condition is caused by the current fluoroelastomer O-rings not providing enough spring force to engage the teflon valve rings under all dimensional
stack conditions. This condition occurs during vehicle cold starts, after the vehicle has been subjected to high temperature operating conditions.
To correct this condition, the steering gear valve assembly should be replaced with a new valve assembly that features new hydrogenated nitrile base
rubber valve body O-rings to eliminate potential for lack of power steering assist during cold starts. The 1993 C/K production steering gears include the
new valve assembly.
SERVICE PROCEDURE:
Tools Required :
J7624
Adjustable Spanner Wrench
J4245
Snap Ring Pliers
J8524-1
Adjuster Plug Bearing Installer
J7079-2
Driver
J2981 0
Seal Protector
J7754-01
0-25 lbs.in. torque wrench
