For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
DEFINITION: Any noise emitted from the front of the vehicle that is induced by VEHICLE SPEED or DRIVING TERRAIN as related to the front suspension.
1 | Did you review the General Description and perform the necessary Inspections? | Go to Step 2 | Go to Symptoms - Suspension General Diagnosis .
2 | Attempt to duplicate the condition. Road test the vehicle. Did you duplicate the condition? | Go to Step 3 | System OK
3 | Is the noise reactive to vehicle load or speed? | Go to Step 4 | Go to Step 5
4 |

1. Inspect the tyres and wheels for the following condition:

• | Correct tyre Inflation. Refer to Tire Inflation Pressure Specifications .

• | Abnormal tyre wear or damage. Refer to Tire Diagnosis - Irregular or Premature Wear .

• | Inspect the wheel nuts for looseness. Refer to Fastener Tightening Specifications .

2. Repair as necessary.

Did you find and correct the condition?

Go to Step 11

Go to Step 5

5 | Bounce the front of the vehicle in order to duplicate the noise. Did you duplicate the noise? | Go to Step 6 | Go to Step 7
6 |

1. Inspect the front suspension and steering components for looseness.
2. Tighten as necessary. Refer to Fastener Tightening Specifications or Fastener Tightening Specifications .

Did you find and correct the condition?

Go to Step 11

Go to Step 7

7 | Inspect the front suspension and steering ball joints for wear and damage. Refer to Ball Joint Inspection . Did you find and correct the condition? | Go to Step 11 | Go to Step 8
8 | Inspect the front struts. Refer to Suspension Strut and Shock Absorber Testing - On Vehicle . Did you find and correct the condition? | Go to Step 11 | Go to Step 9
9 |

1. Inspect the front stabiliser bar, links, and insulators for wear or damage.
2. Replace as necessary.

• | Refer to Stabilizer Shaft Replacement .

• | Refer to Stabilizer Shaft Insulator Replacement .

• | Refer to Stabilizer Shaft Link Replacement .

Did you find and correct the condition?

Go to Step 11

Go to Step 10

10 |

1. Inspect the front suspension control arms, caster arms for wear or damage.
2. Repair as necessary.

• | Refer to Control Arm Replacement .

• | Refer to Front Lower Control Front Arm Replacement .

Did you find and correct the condition?

Go to Step 11

Go to Strategy Based Diagnosis in General Information.

11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3