Hummer H2. Manual - part 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