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Chevrolet Silverado / GMC Sierra. Manual - part 1231
Loose sector shaft or thrust bearing adjustment
See POWER STEERING
GEAR
Free play in pot coupling
See STEERING
COLUMN article
Worn shaft serrations
See STEERING
COLUMN article
Growl in Steering Pump
Excessive pressure in hoses
Restricted hoses, see
POWER STEERING
GEAR article
Scored pressure plates
See POWER STEERING
GEAR article
Scored thrust plates or rotor
See POWER STEERING
GEAR article
Extreme wear of cam ring
See POWER STEERING
GEAR article
Rattle in Steering Pump
Vanes not installed
See POWER STEERING
PUMP article
Vanes sticking in rotor
See POWER STEERING
PUMP article
Swish noise in Pump
Defective flow control valve
See POWER STEERING
PUMP article
Groan in Steering Pump
Air in fluid
See POWER STEERING
PUMP article
Poor pressure hose connection
Tighten and check,
replace if necessary
Squawk When Turning
Damper "O" ring on valve spool cut
See POWER STEERING
PUMP article
Moan or Whine in Pump
Pump shaft bearing scored
Replace bearing and fluid
Air in fluid or fluid level low
See POWER STEERING
PUMP article
Hose or column grounded
Check and replace if
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
necessary
Cover "O" ring missing or damaged
See POWER STEERING
PUMP article
Valve cover baffle missing or damaged
See POWER STEERING
PUMP article
Interference of components in pump
See POWER STEERING
PUMP article
Loose or poor bracket alignment
Correct or replace if
necessary
Hissing When Parking
Internal leakage in steering gear
Check valved assembly
first
Chirp in Steering Pump
Loose or worn power steering belt
Adjust or replace if
necessary
Buzzing When Not Steering
Noisy pump
See POWER STEERING
PUMP article
Free play in steering shaft bearing
See STEERING
COLUMN article
Bearing loose on shaft serrations
See STEERING
COLUMN article
Clicking Noise in Pump
Pump slippers too long
See POWER STEERING
PUMP article
Broken slipper springs
See POWER STEERING
PUMP article
Excessive wear or nicked rotors
See POWER STEERING
PUMP article
Damaged cam contour
See POWER STEERING
PUMP article
Poor Return of Wheel
Wheel rubbing against turn signal
See STEERING
COLUMN SWITCHES
article
Flange rubbing steering gear adjuster
See STEERING
COLUMN article
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
Tight or frozen steering shaft bearing
See STEERING
COLUMN article
Steering gear out of adjustment
See POWER STEERING
GEAR article
Sticking or plugged spool valve
See POWER STEERING
PUMP article
Improper front end alignment
See WHEEL
ALIGNMENT article
Wheel bearings worn or loose
See FRONT
SUSPENSION article
Ties rods or ball joints binding
Check and replace if
necessary
Intermediate shaft joints binding
See STEERING
COLUMN article
Kinked pressure hoses
Correct or replace if
necessary
Loose housing head spanner nut
See POWER STEERING
GEAR article
Damaged valve lever
See POWER STEERING
GEAR article
Sector shaft adjusted too tight
See ADJUSTMENTS in
POWER STEERING
GEAR article
Worm thrust bearing adjusted too tight
See ADJUSTMENTS in
POWER STEERING
GEAR article
Reaction ring sticking in cylinder
See POWER STEERING
GEAR article
Reaction ring sticking in housing head
See POWER STEERING
GEAR article
Steering pump internal leakage
See POWER STEERING
PUMP article
Steering gear-to-column misalignment
See STEERING
COLUMN article
Lack of lubrication in linkage
Service front suspension
Lack of lubrication in ball joints
Service front suspension
Increased Effort When Turning Wheel Fast Foaming, Milky Power Steering Fluid, Low
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
Fluid Level or Low Pressure
High internal pump leakage
See POWER STEERING
PUMP article
Power steering pump belt slipping
Adjust or replace if
necessary
Low fluid level
Check and fill to proper
level
Engine idle speed to low
Adjust to correct setting
Air in pump fluid system
See POWER STEERING
PUMP article
Pump output low
See POWER STEERING
PUMP article
Steering gear malfunctioning
See POWER STEERING
GEAR article
Wheel Surges or Jerks
Low fluid level
Check and fill to proper
level
Loose fan belt
Adjust or replace if
necessary
Insufficient pump pressure
See POWER STEERING
PUMP article
Sticky flow control valve
See POWER STEERING
PUMP article
Linkage hitting oil pan at full turn
Replace bent components
Kick Back or Free Play
Air in pump fluid system
See POWER STEERING
PUMP article
Worn poppet valve in steering gear
See POWER STEERING
PUMP article
Excessive over center lash
See POWER STEERING
GEAR article
Thrust bearing out of adjustment
See POWER STEERING
GEAR article
Free play in pot coupling
See POWER STEERING
PUMP article
Steering gear coupling loose on shaft
See POWER STEERING
PUMP article
2008 Chevrolet Silverado 1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
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