GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you review the Power Steering System General Description and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Power Steering System

2

Verify that a rattle, clunk or shudder noise is present.

Is a rattle, clunk or shudder noise present?

Go to Step 3

System OK

3

Inspect the power steering hoses for proper routing and clearance.

Is the routing or clearance of the power steering hoses incorrect?

Go to Step 10

Go to Step 4

4

Inspect the engine drive belt for cracking or excessive wear. Refer to Drive Belt Falls Off and Excessive Wear Diagnosis .

Is the drive belt cracked or excessively worn?

Go to Step 11

Go to Step 5

5

Inspect the power steering pump pulley for damage.

Is the power steering pump pulley damaged?

Go to Step 12

Go to Step 6

6

Inspect the power steering pump and the power steering mounting bracket/brace for the proper installation. Refer to Power Steering Pump Replacement .

Is the power steering pump installation incorrect?

Go to Step 13

Go to Step 7

7

Inspect the power steering gear for the proper installation. Refer to Steering Gear Replacement .

Is the power steering gear installation incorrect?

Go to Step 14

Go to Step 8

8

Inspect the suspension.

Is the suspension worn?

Go to Step 15

Go to Step 9

9

Inspect the intermediate shaft.

Is the intermediate shaft worn?

Go to Step 16

Go to Step 3

10

Adjust or replace the hoses. Refer to the appropriate procedure(s):

Did you complete the repair?

Go to Step 17

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11

Replace the engine drive belt. Refer to Drive Belt Replacement .

Did you complete the repair?

Go to Step 17

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12

Replace the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .

Did you complete the repair?

Go to Step 17

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13

Install the power steering pump correctly. Refer to Power Steering Pump Replacement .

Did you complete the repair?

Go to Step 17

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14

Install the power steering gear correctly. Refer to Steering Gear Replacement .

Did you complete the repair?

Go to Step 17

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15

Replace the worn suspension components. Refer to Diagnostic Starting Point - Suspension General Diagnosis .

Did you complete the repair?

Go to Step 17

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16

Replace the intermediate shaft. Refer to Intermediate Steering Shaft Replacement .

Did you complete the repair?

Go to Step 17

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17

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3