GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Important: You may need to compare the results of the road test to a similar vehicle that is operating properly.

Road test the vehicle in order to verify the customer complaint.

Does the vehicle ride too hard?

--

Go to Step 2

System OK

2

Inspect the tires for the proper inflation pressure. Refer to Tire Inflation Pressure Specifications in Maintenance and Lubrication.

Is the tire inflation pressure correct?

--

Go to Step 4

Go to Step 3

3

Inflate the tires to the correct pressure.

Is the repair complete?

--

Go to Step 4

--

4

Inspect the vehicle trim height. Refer to Trim Height Inspection Procedure . Repair as necessary.

Is the inspection/repair complete?

--

Go to Step 5

--

5

Inspect the following suspension components for wear or damage:

    • Springs
    • Struts
    • Shock Absorbers

Are any of the components the worn or damaged?

--

Go to Step 6

Go to Step 7

6

Replace all of the worn or damaged components. Refer to the following procedures:

    •  Strut, Strut Component, and Spring Replacement in Front Suspension.
    •  Shock Absorber Replacement in Rear Suspension.
    •  Coil Spring Replacement in Rear Suspension.

Is the repair complete?

--

Go to Step 7

--

7

Inspect the automatic level control system, if equipped. Refer to Automatic Level Control System Operation Check in Automatic Level Control. Repair as necessary.

Is the inspection complete?

--

Go to Step 1

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