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.

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