Chevrolet Silverado / GMC Sierra. Service manual — part 1232
Steering disc mounting bolts loose
Tighten or replace if
necessary
Coupling loose on worm shaft
Tighten or replace if
necessary
Improper sector shaft adjustment
See POWER STEERING
GEAR article
Excessive worm piston side play
See POWER STEERING
GEAR article
Damaged valve lever
See POWER STEERING
GEAR article
Universal joint loose
Tighten or replace if
necessary
Defective rotary valve
See POWER STEERING
GEAR article
No Power When Parking
Sticking flow control valve
See POWER STEERING
PUMP article
Insufficient pump pressure output
See POWER STEERING
PUMP article
Excessive internal pump leakage
See POWER STEERING
PUMP article
Excessive internal gear leakage
See POWER STEERING
PUMP article
Flange rubs against gear adjust plug
See STEERING
COLUMN article
Loose pump belt
Adjust or replace if
necessary
Low fluid level
Check and add proper
amount of fluid
Engine idle too low
Adjust to correct setting
Steering gear-to-column misaligned
See STEERING
COLUMN article
No Power, Left Turn
Left turn reaction seal "O" ring worn
See POWER STEERING
GEAR article
Left turn reaction seal damaged/missing
See POWER STEERING
GEAR article
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
Cylinder head "O" ring damaged
See POWER STEERING
PUMP article
No Power, Right Turns
Column pot coupling bottomed
See STEERING
COLUMN article
Right turn reaction seal "O" ring worn
See POWER STEERING
GEAR article
Right turn reaction seal damaged
See POWER STEERING
GEAR article
Internal leakage through piston end plug
See POWER STEERING
GEAR article
Internal leakage through side plugs
See POWER STEERING
GEAR article
Lack of Effort in Turning
Left and/or right reaction seal sticking in cylinder head
Replace, see POWER
STEERING GEAR
article
Wanders to One Side
Front end alignment incorrect
See WHEEL
ALIGNMENT article
Unbalanced steering gear valve
See POWER STEERING
GEAR article
Low Pressure Due to Steering Pump
Flow control valve stuck or inoperative
See POWER STEERING
PUMP article
Pressure plate not flat against cam ring
See POWER STEERING
PUMP article
Extreme wear of cam ring
Replace and check
adjustments
Scored plate, thrust plate or rotor
See POWER STEERING
PUMP article
Vanes not installed properly
See POWER STEERING
PUMP article
Vanes sticking in rotor slots
See POWER STEERING
PUMP article
Cracked/broken thrust or pressure plate
See POWER STEERING
PUMP article
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
STEERING COLUMN TROUBLE SHOOTING
BASIC STEERING COLUMN TROUBLE SHOOTING CHART
NOTE:
This is GENERAL information. This article is not intended to be
specific to any unique situation or individual vehicle configuration.
The purpose of this Trouble Shooting information is to provide a list
of common causes to problem symptoms. For model-specific
Trouble Shooting, refer to SUBJECT, DIAGNOSTIC, or TESTING
articles available in the section(s) you are accessing.
CONDITION & POSSIBLE CAUSE
CORRECTION
Noise in Steering
Coupling pulled apart
See STEERING
COLUMNS article
Column not correctly aligned
See STEERING
COLUMNS article
Broken lower joint
Replace joint
Horn contact ring not
See STEERING
COLUMN article
Bearing not lubricated
See STEERING
COLUMN article
Shaft snap ring not properly seated
Reseat or replace snap
ring
Plastic spherical joint not lubricated
See STEERING
COLUMN article
Shroud or housing loose
Tighten holding screws
Lock plate retaining ring not seated
See STEERING
COLUMN article
Loose sight shield
Tighten holding screws
High Steering Shaft Effort
Column assembly misaligned
See STEERING
COLUMN article
Improperly installed dust shield
Adjust or replace
Tight steering universal joint
See STEERING
COLUMN article
High Shift Effort
Column is out of alignment
See STEERING
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
SUSPENSION TROUBLE SHOOTING
COLUMN article
Improperly installed dust shield
Adjust or replace
Seals or bearings not lubricated
See STEERING
COLUMNS article
Mounting bracket screws too long
Replace with new shorter
screws
Burrs on shift tube
Remove burrs or replace
tube
Lower bowl bearing assembled wrong
See STEERING
COLUMN article
Shift tube bent or broken
Replace as necessary
Improper adjustment of shift levers
See STEERING
COLUMN article
Improper Trans. Shifting
Sheared shift tube joint
Replace as necessary
Sheared lower shaft lever
Replace as necessary
Improper shift lever adjustment
See STEERING
COLUMN article
Improper gate plate adjustment
See STEERING
COLUMN article
Excess Play in Column
Instrument panel bracket bolts loose
Tighten bolts and check
bracket
Broken weld nut on jacket
See STEERING
COLUMN article
Instrument bracket capsule sheared
See STEERING
COLUMN article
Column bracket/jacket bolts loose
Tighten bolts and check
bracket
Steering Locks in Gear
Release lever mechanism
See STEERING
COLUMN article
NOTE:
This is GENERAL information. This article is not intended to be
specific to any unique situation or individual vehicle configuration.
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
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