Steering Gear (11.01) (page 2 of 2)
- Make
- Aston Martin
- Model
- DB9 Factory Workshop Manual
- Year
- Issue 2, 2005
- Section
- Steering Gear
11 SteeringSteering Gear (11.01) · page 2 of 2
| Symptom | Possible Cause | Action |
|---|---|---|
| Vehicle tends to pull to one side when driven on a level surface. | Incorrect tyre pressure. | Adjust tyre pressure. |
| Incorrect tyre size. | New tyre as required. | |
| Different tyre or tread type. | ||
| Vehicle is unevenly or excessively loaded. | Adjust load evenly. | |
| Incorrect toe adjustment. | Adjust as required. | |
| Damaged front or rear suspension components. | New suspension components. | |
| Steering gear valve effort out of balance. | Shift transmission into neutral while driving at no more than 30 miles/hour (50 km/h) and turn the ignition to position I (engine ‘Off’-coasting). a. If the vehicle does not pull to one side with the engine off, install a new steering gear. b. If the vehicle drifts with the engine off, ‘cross switch’ the front wheel assemblies. Test at low speed due to directional tyres. a. If the vehicle pulls to the opposite side, switch the wheels that were on the rear to the same side on the front. b. If the vehicle pull direction is not changed, check the front suspension components and toe adjustments. |
|
| Check front and rear brakes for correct operation. | Adjust as required. | |
| Check for bent rear suspension components and for damaged coil springs in the front suspension. | New rear suspension components. | |
| Check the rear suspension for loose or worn suspension components. | Tighten. New components. |
|
| Incorrect underbody alignment. | Check underbody alignment. | |
| Feedback (whining or knocking noises in the steering gear) Condition where roughness is felt in the steering wheel by the driver when the vehicle is driven over rough surfaces. |
Loose or worn tie-rods. | New steering gear. |
| Steering gear bolts loose or damaged. | Tighten. New bolts. |
|
| Loose suspension bushing, bolts or ball joints. | Tighten. New components. |
|
| Damaged steering column. | New steering column. | |
| Power steering pump or reservoir leaks | Overfilled system. | Correct fluid level. |
| Damaged fluid cap. | New fluid cap. | |
| Loose or damaged hose fittings. | Tighten. New hose. |
|
| Leakage at power steering pump. | New power steering pump. | |
| Poor returnability of the steering | Incorrect tyre pressure. | Check and adjust tyre pressure. |
| Incorrect tyre size or type. | New tyre as required. | |
| Steering column universal joints binding. | New steering column. | |
| Steering column shaft floor seal may be torn | New floor seal as required. | |
| Binding or damaged tie-rods. | New steering gear. | |
| Damaged or worn front suspension components. | New front suspension components as required. | |
| Incorrect toe adjustment. | Adjust as required. |
Parts & tools for this job For 2005 Aston Martin DB9
- TOOLTie rod end toolSearch: tie rod end puller
- TOOLBall joint separatorSearch: ball joint separator
- FLUIDPower steering fluidSearch: Aston Martin power steering fluid
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