K 1500 Truck 4WD V8-5.7L VIN R (1997)
Steering Control Module: Customer Interest
Alignment - Steering Wander Or Loose Steering
File In Section: 3 - Steering/Suspension
Bulletin No.: 76-30-01
Date: June, 1997
Subject:
Steering Wander
(Reset Alignment, Adjust/Replace Steering Gear)
Models:
1997 Chevrolet and GMC C/K Models
Excluding 3500 HD
Condition
An owner may comment about steering wander or the perception of loose steering at highway speeds
Correction
Follow the Strategy Based Diagnostic Steps for the condition using the Service Manual, Section 3B5, Speed Dependent Steering, Diagnosis System
Check. Perform the Front Wheel Alignment Preliminary Inspections in Section 3A-2. Verify that the front suspension "Z" dimension is within
specifications per the trim height chart on page 3A-4.
Disconnect the left and right tie rod ends and check for tight or binding ball joints and that they are properly lubricated. If all components and
specifications are correct, adjust the front wheel alignment to the following specifications.
Caster
3.80 to 3.90 degrees
Camber
0.5 degrees +/- 0.5 degrees
Sum Toe-In
.24 degrees +/- 0.2 degrees
If condition persists,
-
On vehicles below 8050 # GVW, adjust the steering gear spool valve preload and sector preload following the procedure described in Section 3B1A.
-
On Suburbans equipped with 6.5L Diesel Engine, under 8600 # GVW, built prior to March 5, 1997, replace the steering gear with P/N 26068771 and
the EVO Module, P/N 16259515.
-
On vehicles above 8500 # GVW, built prior to March 5, 1997, replace only the steering gear with P/N 26068771.
Parts Information
P/N
Description
Qty
26068771
Steering Gear
1
16259515
Module, EVO
1
Parts are currently available from GMSPO.
Warranty Information
