Poor Directional Stability. Pontiac GTO 2005

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2005 🢒 GTO 🢒 Suspension 🢒 Front Suspension 🢒 Poor Directional Stability

Step

Action

Yes

DEFINITION: Driver is unable to maintain consistent, predictable vehicle driving control in any direction.

Did you review the system descriptions and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Suspension General Diagnosis

Verify that the directional stability is poor.

Does the system operate normally?

System OK

Go to Step 3

Perform the following inspections:

•	Inspect and adjust the tire pressure to the specifications on the tire placard.

•	Inspect the fasteners for looseness and tighten as necessary. Refer to Fastener Tightening Specifications in Front Suspension.

•	Inspect the stabilizer shaft for damage and repair as necessary. Refer to Stabilizer Shaft Replacement in Front Suspension.

•	Inspect the stabilizer shaft insulators for damage and repair as necessary. Refer to Stabilizer Shaft Insulator Replacement in Front Suspension.

•	Inspect the stabilizer shaft links for damage and repair as necessary. Refer to Stabilizer Shaft Link Replacement in Front Suspension.

Did you find and correct the condition?

Go to Step 10

Go to Step 4

Perform the following inspections:

•	Inspect the control arms for damage and repair as necessary. Refer to Lower Control Arm Replacement in Front Suspension.

•	Inspect the front lower control arm rod for damage and repair as necessary. Refer to Front Lower Control Arm Rod Replacement in Front Suspension.

•	Inspect the front lower control arm rod insulator bushing for damage and repair as necessary. Refer to Front Lower Control Arm Rod Insulator Bushing Replacement in Front Suspension.

•	Inspect the ball joints for damage and repair as necessary. Refer to Ball Joint Inspection .

•	Inspect the outer tie rod ends for damage and repair as necessary. Refer to Rack and Pinion Outer Tie Rod End Replacement in Power Steering System.

Did you find and correct the condition?

Go to Step 10

Go to Step 5

Inspect the wheel bearings for damage and repair as necessary. Refer to Wheel Bearings Diagnosis .

Did you find and correct the condition?

Go to Step 10

Go to Step 6

Inspect the vehicle trim height and repair as necessary. Refer to Trim Height Inspection .

Did you find and correct the condition?

Go to Step 10

Go to Step 7

Inspect the steering column for looseness and repair as necessary. Refer to Steering Column Replacement in Steering Wheel and Column.

Did you find and correct the condition?

Go to Step 10

Go to Step 8

Perform the following inspections:

•	Inspect the steering gear mounting bolts for looseness. Refer to Fastener Tightening Specifications in Power Steering System.

•	Inspect the inner tie rods and the steering gear for damage. Repair as necessary. Refer to Steering Gear Replacement in Power Steering System.

Did you find and correct the condition?

Go to Step 10

Go to Step 9

Inspect and adjust the wheel alignment as necessary. Refer to Wheel Alignment Measurement in Wheel Alignment.

Did you complete the alignment?

Go to Step 10

Operate the vehicle in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3