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 power steering fluid leaks are present.

Is the power steering system leaking?

Go to Step 3

System OK

3

Inspect the power steering system fittings.

Are the fittings leaking?

Go to Step 9

Go to Step 4

4

Inspect the power steering hoses.

Are the hoses leaking?

Go to Step 10

Go to Step 5

5

Inspect the power steering pump and the reservoir for leaks.

Is the power steering pump or reservoir leaking?

Go to Step 11

Go to Step 6

6

Inspect the power steering gear for leaks.

Is the power steering gear leaking?

Go to Step 12

Go to Step 7

7

Inspect the hydraulic brake booster assembly for leaks.

Is the hydraulic brake booster assembly leaking?

Go to Step 13

Go to Step 8

8

Inspect the power steering cooler for leaks.

Is the power steering cooler leaking?

Go to Step 14

Go to Step 2

9

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Tighten the fittings. Refer to Fastener Tightening Specifications .

Did you complete the repair?

Go to Step 15

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10

Replace the power steering hoses. Refer to the appropriate procedures:

Did you complete the repair?

Go to Step 15

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11

Replace the power steering pump or reservoir. Refer to Power Steering Pump Replacement or Remote Power Steering Fluid Reservoir Replacement .

Did you complete the repair?

Go to Step 15

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12

Replace the power steering gear. Refer to Steering Gear Replacement .

Did you complete the repair?

Go to Step 15

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13

Replace the hydraulic brake booster assembly. Refer to Power Brake Booster Replacement in Hydraulic Brakes.

Did you complete the repair?

Go to Step 15

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14

Replace the power steering cooler. Refer to Power Steering Cooler Pipe/Hose Replacement .

Did you complete the repair?

Go to Step 15

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15

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3