Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Symptom Chart (Suspension System)
2021 Ford Edge SE, 4WDSECTION Symptom Chart (Suspension System)
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Symptom | Possible Sources | Action |
|---|---|---|
| Incorrect thrust angle (dogtracking) | Damaged or misaligned rear suspension components | INSPECT rear suspension. REPAIR or INSTALL new components as necessary. REFER to the appropriate Suspension article for the procedure. |
| Drift/pull | Unevenly loaded or overloaded vehicle | NOTIFY customer of incorrect vehicle loading. |
| Unequal tire pressure | CHECK and ADJUST tire pressure as necessary. | |
| Tire forces | CROSS ROTATE tires front to rear. REFER to: Wheels and Tires . | |
| Caster is not within specification | CHECK front caster and ADJUST as necessary. REFER to: Front Camber and Caster Adjustment - F-250/F-350, RWD to: Front Camber and Caster Adjustment - F-250/F-350/F-450/F-550, 4WD . | |
| Steering components | INSPECT the steering system. INSTALL new components as necessary. REFER to: Power Steering . | |
| Brake drag | REFER to: Brake System . | |
| Front bottoming or riding low | Spring(s) | INSTALL front new spring(s) as necessary. REFER to: Spring - F-250/F-350 RWD . or REFER to: Spring - F-450/F-550 RWD . or REFER to: Front Spring 4WD . |
| Front shock absorber(s) | INSTALL new front shock absorber(s) as necessary. REFER to: Front Shock Absorber - F-250/F-350 . or REFER to: Front Shock Absorber - F-450/F-550 . or REFER to: Front Shock Absorber . | |
| Rear bottoming or riding low | Rear spring(s) | INSTALL new rear spring(s) as necessary. REFER to: Rear Spring - F-250/F-350 . or REFER to: Rear Spring - F-450/F-550 . |
| Rear shock absorbers | INSTALL new rear shock absorber(s) as necessary. REFER to: Rear Shock Absorber . | |
| Incorrect/abnormal tire wear | Underinflated tires Incorrect wheel alignment Incorrect wheel and tire assembly rotation intervals Excessive high speed cornering |
REFER to: Wheels and Tires . |
| Sticky steering, poor returnability | Front caster angle | CHECK front caster and ADJUST as necessary. REFER to: Front Camber and Caster Adjustment - F-250/F-350, RWD . or REFER to: Front Camber and Caster Adjustment - F-250/F-350/F-450/F-550, 4WD . |
| Steering components | INSPECT the steering system. INSTALL new components as necessary. REFER to: Power Steering . | |
| Steering wheel off center | Unequal (side-to-side) front toe | CHECK front toe and ADJUST as necessary. REFER to: Front Toe Adjustment - F-250/F-350, RWD . or REFER to: Front Toe Adjustment - F-250/F-350/F-450/F-550, 4WD . |
| Steering components | INSPECT the steering system. INSTALL new components as necessary. REFER to: Power Steering . | |
| Sway or roll | Overloaded, unevenly or incorrectly loaded vehicle | NOTIFY customer of incorrect vehicle loading. |
| Loose wheel nut(s) | TIGHTEN to specification. REFER to: Wheel and Tire - Vehicles With: Single Rear Wheels . or REFER to: Wheel and Tire - Vehicles With: Dual Rear Wheels . | |
| Shock absorber(s) | INSPECT shock absorbers. INSTALL new shock absorber(s) as necessary. REFER to: Front Shock Absorber - F-250/F-350 RWD . or REFER to: Front Shock Absorber - F-450/F-550 RWD . or REFER to: Front Shock Absorber RWD . or REFER to: Rear Shock Absorber . | |
| Worn spring(s) | INSTALL new spring(s) as necessary. REFER to: Front Spring - F-250/F-350 RWD . or REFER to: Front Spring - F-450/F-550 RWD . or REFER to: Spring Front 4WD . or REFER to: Rear Spring - F-250/F-350 . or REFER to: Rear Spring - F-450/F-550 . | |
| Vehicle leans to one side | Unevenly loaded or overloaded vehicle | NOTIFY customer of incorrect vehicle loading. |
| Front or rear suspension components | INSPECT front and rear suspension components. REPAIR or INSTALL new components as necessary. REFER to the appropriate Suspension article for the procedure. | |
| Spring(s) | INSTALL new spring(s) as necessary. REFER to: Front Spring - F-250/F-350 RWD . or REFER to: Front Spring - F-450/F-550 RWD . or REFER to: Front Spring 4WD . or REFER to: Spring - F-250/F-350 . or REFER to: Rear Spring - F-450/F-550 . | |
| Wander | Excessive total toe-in/out | CHECK front toe and ADJUST as necessary. REFER to: Front Toe Adjustment - F-250/F-350, RWD . or REFER to: Front Toe Adjustment - F-250/F-350/F-450/F-550, 4WD . |
| Unevenly loaded or overloaded vehicle | NOTIFY customer of incorrect vehicle loading. | |
| Steering components | INSPECT the steering system. INSTALL new components as necessary. REFER to: Power Steering . | |
| Loose, worn or damaged front wheel bearing(s) | INSPECT front wheel bearings. REFER to Wheel Bearing Inspection . INSTALL new bearing(s) as necessary. | |
| Worn or damaged front suspension component(s) | INSPECT and INSTALL new front suspension component(s) as necessary. REFER to the appropriate Suspension article for the procedure. | |
| Loose suspension fasteners | TIGHTEN to specification. REFER to the appropriate Suspension article for the procedure. | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.