Hummer H2. Instruction - page 35
SUSPENSION TROUBLE SHOOTING
BASIC SUSPENSION TROUBLE SHOOTING CHART
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. 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
Front End Noise
Loose or worn wheel
See Wheel Bearing Adjustment in SUSPENSION
Worn shocks or shock
mountings
Replace struts or strut mountings
Worn struts or strut mountings
Replace struts or strut mountings
Loose or worn lower control
arm
See SUSPENSION
Loose steering gear-to-frame
bolts
See STEERING
Worn control arm bushings
See SUSPENSION
Ball joints not lubricated
Lubricate ball joints & see Ball Joint Checking in
SUSPENSION
Front Wheel Shake, Shimmy, or Vibration
Tires or wheels out of balance
Check tire balance
Incorrect wheel alignment
See WHEEL ALIGNMENT
1998 Chevrolet Pickup C1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
Drive shaft unbalanced
Check drive shaft balance
Loose or worn wheel bearings
See WHEEL ALIGNMENT
Loose or worn tie rod ends
See SUSPENSION
Worn upper ball joints
See Ball Joint Checking in SUSPENSION
Worn shock absorbers
Replace shock absorbers
Worn strut bushings
Replace strut bushings
Car Pulls to One Side
Mismatched or uneven tires
Check tire condition
Broken or sagging springs
See SUSPENSION
Loose or worn strut bushings
See SUSPENSION
Improper wheel alignment
See WHEEL ALIGNMENT
Improper rear axle alignment
Check rear axle alignment
Power steering gear
unbalanced
See STEERING
Front brakes dragging
See BRAKES
Abnormal Tire Wear
Unbalanced tires
Check tire balance & rotation
Sagging or broken springs
See SUSPENSION
Incorrect front end alignment
See WHEEL ALIGNMENT
Faulty shock absorbers
Replace chock absorbers
Scuffed Tires
Toe-In incorrect
See WHEEL ALIGNMENT
Suspension arm bent or twisted
See appropriate SUSPENSION article
Springs Bottom or Sag
Bent or broken springs
See SUSPENSION
Leaking or worn shock
absorbers
Replace shock absorbers
Frame misalignment
Check frame for damage
Spring Noises
Loose "U" Bolts
See SUSPENSION
Loose or worn bushings
See SUSPENSION
Worn or missing interliners
See SUSPENSION
Shock Absorber Noise
Loose shock mountings
Check & tighten mountings
Worn bushings
Replace bushings
Air in system
Bleed air from system
Undercoating on shocks
Remove undercoating
Car Leans or Sways on Corners
Loose stabilizer bar
See SUSPENSION
1998 Chevrolet Pickup C1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
WHEEL ALIGNMENT TROUBLE SHOOTING
BASIC WHEEL ALIGNMENT TROUBLE SHOOTING CHART
Faulty shocks or mountings
Replace shocks or mountings
Broken or sagging springs
See SUSPENSION
Shock Absorbers Leaking
Worn seals or reservoir tube
crimped
See SUSPENSION
Broken Springs
Loose "U" bolts
See SUSPENSION
Inoperative shock absorbers
Replace shock absorbers
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
Premature Tire Wear
Improper tire inflation
Check tire pressure
Front alignment out of tolerance
See ALIGNMENT SPECS in WHEEL
ALIGNMENT section
Suspension components worn
See SUSPENSION section
Steering system components worn
See STEERING section
Improper standing height
See WHEEL ALIGNMENT
Uneven or sagging springs
See SUSPENSION section
Bent wheel
See WHEEL ALIGNMENT
Improper torsion bar adjustment
See SUSPENSION section
Loose or worn wheel bearings
See WHEEL BEARING ADJ. in SUSPENSION
section
Worn or defective shock
Replace shock absorbers
Tires out of balance
Check tire balance
Pulls to One Side
Improper tire inflation
Check tire pressure
Brake dragging
See BRAKE section
Mismatched tires
See WHEEL ALIGNMENT
Broken or sagging spring
See SUSPENSION section
Broken torsion bar
See SUSPENSION section
Power steering valve not centered
See STEERING section
1998 Chevrolet Pickup C1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures
Front alignment out of tolerance
See WHEEL ALIGNMENT section
Defective wheel bearing
See WHEEL BEARINGS in SUSPENSION
section
Uneven sway bar links
See SUSPENSION section
Frame bent
Check for frame damage
Steering system bushing worn
See STEERING section
Hard Steering
Idler arm bushing too tight
See STEERING LINKAGE in STEERING section
Ball joint tight or seized
See SUSPENSION section
Steering linkage too tight
See STEERING LINKAGE in STEERING section
Power steering fluid low
Add proper amount of fluid
Power steering drive belt loose
See STEERING section
Power steering pump defective
See STEERING section
Steering gear out of adjustment
See STEERING section
Incorrect wheel alignment
See WHEEL ALIGNMENT
Damaged steering gear
See STEERING section
Damaged suspension
See SUSPENSION section
Bent steering knuckle or supports
See SUSPENSION section
Vehicle "Wanders"
Strut rod or control arm bushing
worn
See SUSPENSION section
Loose or worn wheel bearings
See WHEEL BEARINGS in SUSPENSION
section
Improper tire inflation
Check tire pressure
Stabilizer bar missing or defective
See SUSPENSION section
Wheel alignment out of tolerance See Adjustment in WHEEL ALIGNMENT section
Broken spring
See SUSPENSION section
Defective shock absorber
Replace shock absorbers
Worn steering & suspension
components
See SUSPENSION section
Front End Shimmy
Tire out of balance/round
Check tire balance
Excessive wheel runout
See WHEEL ALIGNMENT
Insufficient or improper caster
See WHEEL ALIGNMENT section
Worn suspension or steering
components
See SUSPENSION section
Defective shock absorbers
Replace shock absorber
Wheel bearings worn or loose
See WHEEL BEARING ADJ. in SUSPENSION
section
Power steering reaction Bracket
See STEERING section
1998 Chevrolet Pickup C1500
GENERAL INFORMATION Trouble Shooting - Basic Procedures