Suspension Trouble Shooting
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.
BASIC SUSPENSION TROUBLE SHOOTING CHART
| 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 | |
| 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 | |
| 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 | |