Special Tools
CH-39570 Chassis Ear
Equivalent regional tools: Special Tools
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DEFINITION: Any noise emitted from the rear of the vehicle that is induced by VEHICLE SPEED or DRIVING TERRAIN as related to the rear suspension. |
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1 |
Did you review the General Description and perform the necessary inspections? |
Go to Step 2 |
Go to Symptoms - Suspension General Diagnosis |
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2 |
Attempt to duplicate the condition. Road test the vehicle. Did you duplicate the condition? |
Go to Step 3 |
System OK |
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3 |
Is the noise reactive to vehicle load or speed? |
Go to Step 4 |
Go to Step 6 |
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4 |
Perform the following inspections: Inspect and adjust the tire inflation. Vehicle Certification, Tire Placard, and Anti-Theft Label Inspect for unusual tire wear. Vibration Analysis - Tire and Wheel Inspect the wheel nuts for looseness. Fastener Specifications Did you find and correct the condition? |
Go to Step 10 |
Go to Step 5 |
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5 |
Inspect the rear axle for rear axle noises. Symptoms - Rear Drive Axle Did you find and correct the condition? |
Go to Step 10 |
Go to Step 6 |
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6 |
Bounce the rear of the vehicle in order to duplicate the noise. Did you duplicate the noise? |
Go to Step 7 |
Go to Step 9 |
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1. Raise and support the vehicle. Lifting and Jacking the Vehicle 2. Inspect the rear suspension components for |
Go to Step 10 |
Go to Step 8 |
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Action |
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No |
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Specifications 3. Inspect the rear suspension components for damage and repair as necessary. Did you find and correct the condition? |
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| 8 |
Inspect the rear shock absorbers. Suspension Strut and Shock Absorber Testing - On Vehicle Did you complete the inspection? |
Go to Step 10 |
Go to Step 9 |
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1. Install the CH-39570 Chassis Ear, or equivalent. 2. Bounce the rear of the vehicle, using the CH- 39570 Chassis Ear, or equivalent, in order to locate the source of the noise. If necessary, road test the vehicle. 3. Repair or replace any defective component as necessary. Did you find and correct the condition? |
Go to Step 10 |
System OK |
| 10 |
Operate the system in order to verify the repair. Did you correct the condition? |
System OK |
Go to Step 3 |