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REPAIR INSTRUCTIONS RACK AND PINION STEERING LINKAGE INSPECTION Tools Required J 8001 Dial Indicator Set J 42640 Steering Column Anti-Rotation Pin Outer Tie Rod 1. Inspect the outer tie rod seal. If the outer tie rod seal is torn, replace the outer tie rod. 2. Elevate the left or right front of the vehicle and install a suitable vehicle support, maintaining contact between one front wheel and the shop floor. Refer to Lifting and 1 General Description and perform the necessary Go to Step 2 - Power Steering System 2 Verify that the steering effort is hard in one or System OK Go to Step 3 3 Perform the power steering test procedure. Go to Step 4 - 4 Operate the system in order to verify the repair. System OK Go to Step 3
2008 Chevrolet Silverado 1500 2008 STEERING Power Steering - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 6: Identifying J 42640 3. Position the wheels in a straight-ahead position and install anti-rotation pin J 42640 .
2008 Chevrolet Silverado 1500 2008 STEERING Power Steering - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 7: Checking Tie Rod-To-Steering Knuckle Lash 4. Install dial indicator J 8001 between the outer tie rod and steering knuckle as shown and push slowly inward with one hand on the tire to remove the lash. The wheel and tire are removed for clarity. 5. Place the dial indicator at zero, pull outward on the tire, and note the amount of movement in the joint. Movement should not exceed 1.0 mm (0.04 in). If movement exceeds 1.0 mm (0.04 in) then 6. Repeat steps 3 and 4 for the other side of the vehicle if needed. 7. If tie rod end replacement is needed, refer to Steering Linkage Outer Tie Rod Replacement.
2008 Chevrolet Silverado 1500 2008 STEERING Power Steering - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
POWER STEERING SYSTEM BLEEDING 1. Fill pump reservoir with fluid to minimum system level, FULL COLD level, or middle of hash mark on cap stick fluid level indicator. 2. If equipped with hydro-boost, fully charge the hydro-boost accumulator using the following procedure: 1. Start the engine. 2. Firmly apply the brake pedal 10-15 times. 3. Turn the engine OFF. 3. Raise the vehicle until the front wheels are off the ground. Refer to Lifting and Jacking the Vehicle . 4. Key on engine OFF, turn the steering wheel from stop to stop 12 times. Vehicles equipped with hydro-boost systems or longer length power steering hoses may 5. Verify power steering fluid level per operating specification. Refer to Checking and Adding Power Steering Fluid (With Hydroboost) or Checking and Adding Power IMPORTANT: Use clean, new power steering fluid type only. See the Hoses touching the frame, body or engine may cause Loose connections may not leak, but could allow air into IMPORTANT: Power steering fluid level must be maintained throughout bleed procedure. IMPORTANT: With hydro-boost only, the oil level will appear falsely high if the hydro-boost accumulator is not fully charged. Do not
2008 Chevrolet Silverado 1500 2008 STEERING Power Steering - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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