Power Steering System Chevrolet Impala IX

Fastener Tightening Specifications

Power Steering Pump Specifications

Scheme 1

Scheme 2

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the power steering system.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
3. Inspect for leaking power steering components. If necessary, refer to «Power Steering Fluid Leaks»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
4. Verify the power steering fluid level per operating specification. Refer to «Checking and Adding Power Steering Fluid»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system__checking-and-adding-power-steering-fluid) .
5. Inspect the power steering fluid for the following indications of contamination: Milky fluid - water Brown fluid - burnt Debris in fluid - plastic or dirt
6. If necessary, flush the power steering system. Refer to «Power Steering System Flushing»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

Symptoms List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Power Steering Fluid Leaks»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system)
2. «Rattle, Clunk, or Shudder Noise from the Power Steering System»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system)
3. «Whine or Growl Noise from the Power Steering System»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system)
4. «Steering Effort Hard or Too Easy in One or Both Directions»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system__steering-effort-hard-or-too-easy)

Scheme 3

Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 5: This step tests the system for restrictions.
2. 7: This step tests the following components for the following conditions: The pump for internal leaks The power steering pipes for kinks
3. 8: This step tests the ability of the pump to regulate flow at maximum pressure.
4. 10: This step tests the ability of the pump to regulate flow under normal operating conditions.
5. 12: This step tests the internal components of the pump and the gear.

Special Tools

GE-28431-6: Fluorescent Dye

For equivalent regional tools, refer to Special Tools .

Note. If fluid is found on a manual steering gear or on an electronic power steering gear, do not replace steering gear. Vehicles equipped with these systems do not use hydraulic power steering fluid. The fluid may be assembly fluid or another system fluid. Clean the components and identify the sources of the leaks before attempting to repair or replace any power steering components. Clearly mark all locations of leaks with paint, marker, or equivalent for warranty identification and engineering root cause analysis.

Some customers may comment on a fluid LEAK or NOISY power steering pump. Upon inspection, the technician may find power steering fluid leaking from the hydraulic power steering system. Use the following inspection procedure in order to diagnose the source of the leak and take appropriate action to correct the condition.

1. Inspect the fluid level in the power steering fluid reservoir. Refer to «Checking and Adding Power Steering Fluid»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system__checking-and-adding-power-steering-fluid) . If the fluid level is NOT low, a careful analysis of the condition is necessary to confirm that the type of fluid is actually power steering fluid.
2. Visually inspect the power steering system and components where the fluid has accumulated.
3. Use a clean towel or a rag in order to completely clean off all residual fluid from the power steering components.
4. Add 30 cc (1 oz) of GE-28431-6: dye to the power steering fluid.
5. Start the vehicle and warm the steering system by turning to the left steering stop and to the right steering stop 10 times with the weight of the vehicle on the front tires.
6. Turn vehicle engine OFF.
7. Shine a black light on the area where the residual fluid accumulated. Identify the sources of the leaks.
8. Mark all locations of leaks with paint, marker, or equivalent.
9. Repair or replace all affected components.

Poor Return of Steering Wheel

Steering Effort Hard or Too Easy in One or Both Directions

J-8001: Dial Indicator Set

For equivalent regional tools, refer to Special Tools .

1. Turn the ignition key to the ON position with the engine OFF.
2. With the aid of an assistant, turn the steering wheel to the full stop position and hold the steering wheel in that position until the test is complete. The tie rod being tested should be inside the steering gear housing seated against the steering stop.
3. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
4. If there is not a good location for the J-8001: Dial Indicator pointer at the steering gear housing, install a large worm gear hose clamp to the steering gear housing over the larger steering gear boot clamp and align the clamp so that the screw can be a location for the J-8001: Dial Indicator pointer.
5. Install the J-8001: Dial Indicator between the inner tie rod (2) and the steering gear housing or the worm gear clamp in such a way as to measure the lash between the inner tie rod and the steering gear housing.
6. Grasping the tire at the 3 o'clock (2) and 9 o'clock (1) positions, gently push in on one side of the tire in order to remove any lash.
7. Zero the J-8001: Dial Indicator.
8. On the same side of the tire previously pushed in, gently pull out and measure the lash.
9. Record the measurement seen on the J-8001: Dial Indicator.
10. If the measured value exceeds 0.5 mm (0.02 in), replace the steering gear. Refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
11. Repeat the procedure for the other side.

J-8001: Dial Indicator Set

For equivalent regional tools, refer to Special Tools .

1. Inspect the outer tie rod end seal. If the outer tie rod end seal is torn, replace the outer tie rod end. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
2. Raise the side of the vehicle being inspected with a floor jack while maintaining contact between the opposite wheel and the shop floor. Support the lower control arm with a floor jack stand as far outboard as possible and remove the floor jack. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
3. Install the J-8001: Dial Indicator between the outer tie rod end and the steering knuckle as shown in the graphic. Note that the tire and wheel assembly is shown removed only for clarification of the J-8001: Dial Indicator position.
4. Grasping the tire at the 3 o'clock (2) and 9 o'clock (1) positions, gently push in on one side of the tire to remove any lash.
5. Zero the J-8001: Dial Indicator.
6. On the same side of the tire previously pushed inwards, gently pull outwards and measure the lash.
7. Record the measurement seen on the J-8001: Dial Indicator.
8. If the measured value exceeds 0.5 mm (0.02 in) then replace the outer tie rod. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
9. Repeat the procedure for the other side.

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: Start the engine. Firmly apply the brake pedal 10-15 times. Turn the engine OFF.
3. Raise the vehicle until the front wheels are off the ground. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__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 require turns up to 15 to 20 stop to stops.
5. Verify power steering fluid level per operating specification. Refer to «Checking and Adding Power Steering Fluid»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system__checking-and-adding-power-steering-fluid) .
6. Start the engine. Rotate steering wheel from left to right. Check for sign of cavitation or fluid aeration (pump noise/whining).
7. Verify the fluid level. Repeat the bleed procedure, if necessary.

Checking and Adding Power Steering Fluid

1. Clean the area surrounding the reservoir cap.
2. Remove the reservoir cap.
3. Inspect the power steering pump fluid level at regular intervals. Use the appropriate procedure below. Add fluid when required. Refer to «Fluid and Lubricant Recommendations»(/chevrolet/impala/ix-2006-2016/remont/lubrication-system/#maintenance-and-lubrication__fluid-and-lubricant-recommendations) . Fluid Is Hot Run the engine until the fluid reaches about 80°C (170°F). Turn the engine OFF. Remove the reservoir cap. Inspect the fluid level on the capstick. Ensure that the fluid level is at the HOT/FULL/MAX mark on the capstick.
4. If the fluid level is low, add power steering fluid to the proper level.
5. Install the reservoir cap.
6. When checking the fluid level after servicing the steering system, bleed the air from the system. Refer to «Power Steering System Bleeding»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

Note. Do not reuse any drained power steering fluid regardless of appearance or condition.

1. Raise the vehicle until the front wheels are off the ground. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
2. Place a large drain pan under the vehicle in order to collect the draining fluid.
3. Remove the fluid return hose at the power steering fluid reservoir or the pump inlet connection, as applicable.
4. Plug the reservoir return hose inlet connection on the power steering fluid reservoir or the pump, as applicable.
5. Have an assistant maintain the minimum fluid level in the reservoir using clean, new power steering fluid. Refer to «Checking and Adding Power Steering Fluid»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system__checking-and-adding-power-steering-fluid) .
6. With the key in the ON position and with the engine OFF, turn the steering wheel fully to the left and to the right. Continue until the fluid from the return hose runs clear.
7. Remove the plug and install the fluid return hose to the power steering fluid reservoir or the pump inlet connection, as applicable.
8. Bleed the power steering system. Refer to «Power Steering System Bleeding»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
9. Inspect the power steering fluid for the following indications of contamination: Milky fluid - water Brown fluid - burnt Plastic debris or dirt chunks
10. If the fluid is contaminated, repeat steps 3-9.
11. Remove the drain pan.
12. Lower the vehicle.

Scheme 4

Scheme 5

Scheme 6

Disassembly Procedure

1. Place the hydraulic pump (1) on a fixed, flat surface, with the shaft facing upward.
2. Insert a screwdriver into the retaining clip tab (3).
3. Using the screwdriver, force the retaining clip tab (3) outward.
4. Slide the reservoir clip (4) away from the hydraulic pump assembly (1).
5. Repeat the above steps to remove the second reservoir clip (4).
6. Remove the reservoir (2) from the hydraulic pump housing (1).
7. Remove the O-ring seal from the neck of the reservoir (2) or inside the hydraulic pump housing (1). Discard the O-ring seal.

Assembly Procedure

1. Lubricate the new O-ring seal with power steering fluid.
2. Install the new O-ring seal onto the neck of the reservoir (2).
3. Install the reservoir (2) onto the hydraulic pump assembly (1). Ensure the reservoir neck is completely engaged onto the hydraulic pump assembly (1).
4. Align the feet of the reservoir with the sides of the hydraulic pump housing.
5. Install the new reservoir retaining clips (4) (supplied with the pump). Ensure the retaining clip tabs (3) fully engage with the hydraulic pump housing (1).

1. Remove the O-ring union fitting (5) from the hydraulic pump housing assembly (1).
2. Remove the O-ring seal (4) from the O-ring union fitting (5).
3. Remove the control valve assembly (3).
4. Remove the flow control spring (2).

1. Install the flow control spring (2) to the hydraulic pump housing assembly (1).
2. Install the control valve assembly (3).
3. Lubricate the O-ring seal (4) with power steering fluid.
4. Install the O-ring seal (4) onto the O-ring union fitting (5).
5. Install the O-ring union fitting (5) into the hydraulic pump housing assembly (1) and tighten to 75 N.m (55 lb ft).

Removal Procedure

1. Remove the power steering pump from the vehicle, if necessary. Refer to «Power Steering Pump Replacement (LZ4/LZE/LZ9)»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
2. Use a small chisel in order to remove the seal. Discard the seal.

Installation Procedure

1. Lubricate the new drive shaft seal using power steering fluid.
2. Use a deep socket in order to install the new drive shaft seal.
3. Install the power steering pump, if removed. Refer to «Power Steering Pump Replacement (LZ4/LZE/LZ9)»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

J 24319-B Universal Steering Linkage Puller. See Special Tools .

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
3. Remove the prevailing torque nut (2) from the outer tie rod assembly (1).
4. Loosen the jam nut (2) on the inner tie rod assembly (1).
5. Remove the outer tie rod assembly from the steering knuckle using J 24319-B . See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
6. Remove the outer tie rod assembly (3) from the inner tie rod assembly (1).

1. Install the outer tie rod assembly (3) to the inner tie rod assembly (1). Do NOT tighten the jam nut (2).
2. Install the outer tie rod assembly (2) to the steering knuckle (1).
3. Install the prevailing torque nut (2) to the outer tie rod assembly (1). Tighten: Tighten the nut to 30 N.m (22 lb ft) plus 120 degrees. Visually inspect to ensure that 2 1/2 to 4 1/2 threads are visible past the nylon washer.
4. Install tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
5. Lower the vehicle.
6. Perform a front end alignment. Refer to «Wheel Alignment Measurement»(/chevrolet/impala/ix-2006-2016/remont/wheel-alignment/#wheel-alignment-system__wheel-alignment-measurement) .

Tools Required

J 22610 Keystone Clamp Pliers

1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
2. Remove the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
3. Remove the outer tie rod from the inner tie rod assembly. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
4. Remove the intermediate steering shaft lower pinch bolt. Refer to «Intermediate Steering Shaft Replacement»(/chevrolet/impala/ix-2006-2016/remont/steering-column-switches/#steering-wheel-and-steering-column) .
5. Remove the rear frame mounting bolts to allow for tool access. Refer to «Frame Replacement»(/chevrolet/impala/ix-2006-2016/remont/frames-subframes-crossmembers/#frame-and-underbody) .
6. Remove the inner tie rod jam nut (2) from the inner tie rod assembly (1).
7. Remove the clamp (2) from the end of the inner tie rod boot (1).
8. Remove the inner tie rod boot clamp (1) from the inner tie rod boot (3) with side cutters.
9. Discard the inner tie rod boot clamp (1).
10. Remove the inner tie rod boot (3) and the breather tube (2).

Scheme 7

1. Install the new inner tie rod boot clamp (1) onto the inner tie rod boot (3).
2. Prior to the inner tie rod boot (3) installation, apply grease to the inner tie rod assembly (2) and the power steering gear assembly (1).
3. Install the inner tie rod boot (3) onto the inner tie rod assembly (2).
4. Align the breather tube with the mark made during removal and the molded nipple of the inner tie rod boot.
5. Install the inner tie rod boot (3) onto the power steering gear assembly until the inner tie rod boot (3) is seated in the power steering gear assembly groove.
6. Using the J 22610 install the inner tie rod boot clamp (1) on the inner tie rod boot (2) by firmly crimping the inner tie rod boot clamp (1).
7. Install the inner tie rod small boot clamp (2).
8. Install the inner tie rod jam nut (2) to the inner tie rod assembly (1).
9. Install the rear frame mounting bolts. Refer to «Frame Replacement»(/chevrolet/impala/ix-2006-2016/remont/frames-subframes-crossmembers/#frame-and-underbody) .
10. Install the intermediate steering shaft lower pinch bolt. Refer to «Intermediate Steering Shaft Replacement»(/chevrolet/impala/ix-2006-2016/remont/steering-column-switches/#steering-wheel-and-steering-column) .
11. Install the outer tie rod to the inner tie rod assembly. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
12. Install the tire and wheel assembly. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
13. Lower the vehicle.
14. Perform a front end alignment. Refer to «Wheel Alignment Measurement»(/chevrolet/impala/ix-2006-2016/remont/wheel-alignment/#wheel-alignment-system__wheel-alignment-measurement) .

Scheme 8

Scheme 9

Scheme 10

J-42640: Steering Column Anti-rotation Pin

1. Insert J-42640: pin into the steering column access hole in order to lock the steering column.
2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
3. Place a drain pan under the vehicle.
4. Remove the tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
5. Remove the lower pinch bolt from the power steering gear stub shaft (2).
6. Remove the intermediate steering shaft from the power steering gear stub shaft.
7. Remove both of the tie rod ends from the steering knuckles. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
8. Support the rear of the frame (3) using jackstands.
9. Remove the frame bolts from the rear of the frame. Refer to «Frame Replacement»(/chevrolet/impala/ix-2006-2016/remont/frames-subframes-crossmembers/#frame-and-underbody) .
10. Lower the rear of the frame (3).
11. Remove the power steering pressure hose from the power steering gear. Refer to «Power Steering Pressure Pipe/Hose Replacement (LZ4/LZE/LZ9)»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
12. Remove the power steering return hose from the power steering gear. Refer to «Power Steering Return Hose Replacement (LZ4/LZE/LZ9)»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
13. Remove the power steering gear mounting bolts (1) and nuts (4).
14. Remove the power steering gear through the left wheel opening.

1. Install the power steering gear through the left wheel opening.
2. Install the power steering gear mounting bolts (1) and nuts (4). Tighten the power steering gear mounting bolts to 90 N.m (66 lb ft).
3. Inspect the threads on the power steering pressure hose and the power steering return hose.
4. Inspect the O-ring seals on the power steering hoses.
5. Replace the seals if damaged, lubricate the seals before installation.
6. Install the clamp that holds the power steering hoses to the power steering gear.
7. Install the power steering pressure hose to the power steering gear. Refer to «Power Steering Pressure Pipe/Hose Replacement (LZ4/LZE/LZ9)»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
8. Install the power steering return hose to the power steering gear. Refer to «Power Steering Return Hose Replacement (LZ4/LZE/LZ9)»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
9. Raise the frame into position (3).
10. Install rear frame bolts. Refer to «Frame Replacement»(/chevrolet/impala/ix-2006-2016/remont/frames-subframes-crossmembers/#frame-and-underbody) .
11. Remove the jackstands.
12. Install the tie rod ends to the steering knuckles. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
13. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
14. Install the intermediate steering shaft (1) to the power steering gear stub shaft (2).
15. Install the lower pinch bolt to the intermediate steering shaft at the power steering gear stub shaft. Tighten the pinch bolt to 48 N.m (35 lb ft).
16. Install the intermediate steering shaft seal onto the power steering gear.
17. Install the tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
18. Remove the drain pan from under the vehicle.
19. Lower the vehicle.
20. Remove the J-42640: pin from the steering column.
21. Fill the power steering system with power steering fluid. Refer to «Checking and Adding Power Steering Fluid»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system__checking-and-adding-power-steering-fluid) .
22. Bleed the power steering system. Refer to «Power Steering System Bleeding»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
23. Inspect the power steering system for leaks. Refer to «Power Steering Fluid Leaks»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
24. Preform a front end alignment. Refer to «Wheel Alignment Measurement»(/chevrolet/impala/ix-2006-2016/remont/wheel-alignment/#wheel-alignment-system__wheel-alignment-measurement) .

Steering Gear Rack Bearing Preload Adjustment - Off Vehicle (Rack and Pinion)

1. Loosen the adjuster plug lock nut (1).
2. Turn the adjuster plug clockwise until the adjuster plug bottoms in the gear assembly.
3. Turn the adjuster plug back 50 degrees to 70 degrees (approximately one flat).
4. Install the adjuster plug lock nut (1) to the adjuster plug. Tighten: Hold the adjuster plug stationary while tightening the adjuster plug lock nut (1) to 68 N.m (50 lb ft).

J 22610 Keystone Clamp Pliers.

1. To remove the outer tie rod. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
2. Remove the hexagon jam nut (2) from the inner tie rod assembly (1).
3. Remove the tie rod end clamp (2) from the rack and pinion boot (1).
4. Remove the boot clamp (1) from the rack and pinion boot with side cutters.
5. Discard the boot clamp (1).
6. Remove the rack and pinion boot (1) and the breather tube, if present, from the rack and pinion gear assembly.

1. Install the new boot clamp (1) onto the rack and pinion boot (3).
2. Prior to rack and pinion boot installation, apply grease to the inner tie rod assembly (2) and the rack and pinion gear assembly (1).
3. Install the rack and pinion boot (3) onto the inner tie rod assembly (2).
4. If present, install the breather tube while aligning the breather tube with the mark made during removal and the molded nipple of the rack and pinion boot.
5. Install the rack and pinion boot onto the gear assembly (1) until the rack and pinion boot (3) is seated in the gear assembly groove.
6. Install the boot clamp (1) on the rack and pinion boot (2) with J 22610 .
7. Crimp the boot clamp (1).
8. Pinch the pliers together on the rack and pinion boot (2) in order to install the tie rod end clamp.
9. Install the tie rod end clamp (2) onto the rack and pinion boot (1).
10. Install the hexagon jam nut (2) to the inner tie rod assembly (1).
11. To assemble the outer tie rod assembly. Refer to «Steering Linkage Outer Tie Rod Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

J-34028: Inner Tie Rod Wrench

1. Remove the steering gear from the vehicle. Refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
2. Remove the 2 steering gear boots and breather tubes from the steering gear. Refer to «Steering Gear Boot and Breather Tube Replacement - Off Vehicle»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
3. Place the steering gear in a vise.
4. Slide the left shock dampener (4) from the left inner tie rod housing (6) to the rack (5).
5. Place a pipe wrench on the rack next to the left inner tie rod housing.
6. Place a wrench on the flats of the left inner tie rod housing.
7. Rotate the left inner tie rod housing counterclockwise, while holding the rack stationary, until the left inner tie rod separates from the rack.
8. Slide the right shock dampener (3) from the right inner tie rod housing (2) to the rack (5).
9. Place a pipe wrench on the left side of the rack.
10. Place a wrench on the flats of the right inner tie rod housing.
11. Rotate the right inner tie rod housing counterclockwise, while holding the rack stationary, until the right inner tie rod (1) separates from the rack.
12. If the steering gear has a female rack (1) and a male inner tie rod (3), remove the old LOCTITE® from the threads (2) on the inner tie rod and from the threads on the rack. If the steering gear has a male rack (5) and a female inner tie rod (4), LOCTITE® will not be present.

1. If the steering gear has a female rack (1) and a male inner tie rod (3), apply LOCTITE® 262, or equivalent, to the threads (2) on the left inner tie rod.
2. Install the left inner tie rod to the rack (3).
3. Place a pipe wrench on the rack next to the left inner tie rod housing (2).
4. Place a torque wrench and the J-34028: wrench on the flats of the left inner tie rod housing. Tighten the inner tie rod to 100 N.m (74 lb ft).
5. If the steering gear has a female rack (5) and a male inner tie rod (1), apply LOCTITE® 262, or equivalent, to the threads on the right inner tie rod.
6. Install the right inner tie rod to the rack.
7. Place a pipe wrench on the rack next to the left inner tie rod housing (4).
8. Place a torque wrench and the J-34028: wrench on the flats of the steering linkage inner tie rod housing (7). Tighten the inner tie rod to 100 N.m (74 lb ft).
9. Place each inner tie rod assembly (2) on a vise.
10. Stake both sides of the 2 female inner tie rod housings to the male rack.
11. Insert a 0.25 mm gauge (1) between the rack (2) and the inner tie rod housing in order to inspect the 4 stakes. The feeler gauge must not pass between the rack and the inner tie rod housing stake.
12. Slide the left shock dampener (2) over the left inner tie rod housing (3) until the front lip of the left shock dampener bottoms against the left inner tie rod housing.
13. Slide the right shock dampener over the right inner tie rod housing until the front lip of the right shock dampener bottoms against the right inner tie rod housing.
14. Install the 2 steering gear boots and breather tubes to the steering gear. Refer to «Steering Gear Boot and Breather Tube Replacement - Off Vehicle»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
15. Install the steering gear to the vehicle. Refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

1. Remove the steering gear. Refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
2. Remove the TORX® screw (1) from the cylinder pipe retaining plate (2) at the valve end.
3. Remove the cylinder pipe retaining plate.
4. Loosen both cylinder pipe nuts (3) on the cylinder end of the gear assembly (1).
5. Remove both cylinder pipe assemblies (2) from the steering gear assembly.
6. Remove the O-rings seals (4) from the valve end (5). Discard the O-rings seals.

1. Inspect the cylinder pipes (1) for the following items: Cracks Dents Damage to the threads
2. Replace the parts as necessary.
3. Lubricate and install the NEW O-rings seals (2) onto the cylinder pipes.
4. Install the smaller cylinder pipe to the valve housing.
5. Install the cylinder pipe to the gear tube end. Finger tighten the cylinder pipe nut on the smaller cylinder pipe.
6. Install the larger cylinder pipe to the valve housing.
7. Install the cylinder pipe to the gear tube end. Finger tighten the cylinder pipe nut on the larger cylinder pipe.
8. Place the cylinder pipe retaining plate (2) over the cylinder pipe beads at the valve end.
9. Install the TORX® screw (1) to the cylinder pipe retaining plate (2). Using an E 8 socket, tighten the screw to 12 N.m (106 lb in).
10. Tighten both cylinder pipe nuts (3) at the cylinder end to 34 N.m (25 lb ft).
11. Install the steering gear. Refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

J-29810: Stub Shaft Seal Protector

1. Remove the steering gear from the vehicle, refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
2. Remove the adjuster plug lock nut (5) from the adjuster plug (4).
3. Remove the adjuster plug (4) from the gear assembly (1).
4. Remove the adjuster spring (3) and the rack bearing (2).
5. Remove the spool shaft boot (1) from the rack and pinion gear assembly.
6. Remove the retaining ring (2) from the valve bore of the rack and pinion gear assembly.
7. Remove the dust cover (4) from the bottom of the rack and pinion gear assembly.
8. Remove the hex lock nut (3) from the lower end of the pinion and valve assembly while holding the stub shaft with a 14 mm crowfoot wrench.
9. Using an arbor press (1), press on the threaded end of the pinion and valve assembly only far enough to allow removal of the stub shaft bearing annulus (3) and the stub shaft seal (2).
10. Remove the stub shaft seal.
11. Remove the stub shaft bearing annulus.

1. Install the hex lock nut (1) onto the pinion while holding the valve stub shaft. Tighten the nut to 30 N.m (22 lb ft).
2. Install the dust cover (2) to the rack and pinion gear assembly.
3. Install the stub shaft bearing annulus assembly (1) onto the valve stub shaft (2).
4. Install the J-29810: protector onto the valve stub shaft.
5. Lubricate the stub shaft seal (3) with grease.
6. Install the stub shaft seal (3) into the rack and pinion gear assembly.
7. Install the retaining ring (2) into the groove in the rack and pinion gear assembly.
8. Install the spool shaft boot (1) onto the rack and pinion gear assembly.
9. Lubricate the following items with lithium base grease: The rack bearing (2) The adjuster spring (3) The adjuster plug (4)
10. Install the following items into the gear assembly: The rack bearing (2) The adjuster spring (3) The adjuster plug (4)
11. Turn the adjuster plug (1) clockwise onto the rack and pinion gear assembly until the adjuster plug (1) bottoms in the rack and pinion gear assembly, then turn the adjuster plug (1) back 50 degrees to 70 degrees.
12. Check the rotational torque on the pinion. The maximum pinion preload torque is 1.8 N.m (16 lb in).
13. Install the adjuster plug lock nut (5) to the adjuster plug (4). Finger tighten the adjuster plug lock nut (5) while holding the adjuster plug (4) stationary. Tighten the nut to 68 N.m (50 lb ft).
14. Install the steering gear into the vehicle. Refer to «Steering Gear Replacement»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .
15. Flush and bleed power the steering system. Refer to «Power Steering System Bleeding»(/chevrolet/impala/ix-2006-2016/remont/manual-power-steering/#power-steering-system) .

The hydraulic power steering pump is a constant displacement vane-type pump that provides hydraulic pressure and flow for the power steering gear. The hydraulic power steering pumps are either belt-driven or direct-drive, cam-driven.

The power steering fluid reservoir holds the power steering fluid and may be integral with the power steering pump or remotely located. The following locations are typical locations for the remote reservoir

1. Mounted to the front of the dash panel
2. Mounted to the inner fender
3. Mounted to a bracket on the engine

The 2 basic types of power steering gears are listed below

1. A recirculating ball system
2. A rack and pinion system

In the recirculating ball system, a worm gear converts steering wheel movement to movement of a sector shaft. A pitman arm attached to the bottom of the sector shaft actually moves one tie rod and an intermediate rod move the other tie rod.

In the rack and pinion system, the rack and the pinion are the 2 components that convert steering wheel rotation to lateral movement. The steering shaft is attached to the pinion in the steering gear. The pinion rotates with the steering wheel. Gear teeth on the pinion mesh with the gear teeth on the rack. The rotating pinion moves the rack from side to side. The lateral action of the rack pushes and pulls the tie rods in order to change the direction of the vehicle's front wheels.

The power steering pressure hose connects the power steering pump union fitting to the power steering gear and allows pressurized power steering fluid to flow from the pump to the gear.

The power steering return hose returns fluid from the power steering gear back to the power steering fluid reservoir. The power steering return line may contain an integral fin-type or line-type power steering fluid cooler.

In a typical power steering system, a pump generates hydraulic pressure, causing fluid to flow, via the pressure hose, to the steering gear valve assembly. The steering gear valve assembly regulates the incoming fluid to the right and left chambers in order to assist in right and left turns.

Turning the steering wheel activates the valve assembly, which applies greater fluid pressure and flow to 1 side of the steering gear piston, and lower pressure and flow to the other side of the piston. The pressure assists the movement of the gear piston. Tie rods transfer this force to the front wheels, which turn the vehicle right or left.

Illustration Tool Number/ Description GE-28431-6 J-28431-6 Fluorescent Dye J-22610 Keystone Clamp Pliers J-24319-B Steering Linkage and Tie Rod Puller J-25033-C Pulley Installer J-25034-C Pulley Remover J-34028 Inner Tie Rod Wrench J-39570 Chassis Ear J-42640 Steering Column Anti-rotation Pin J-44721 Power Steering Analyzer

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

See also:
• Drive Belt Falls Off and Excessive Wear Diagnosis
• Drive Belt Falls Off and Excessive Wear Diagnosis
• Drive Belt Replacement
• Drive Belt Replacement
• Intermediate Steering Shaft Replacement
• Lifting and Jacking the Vehicle
• Tire and Wheel Removal and Installation
• Wheel Alignment Measurement
• Fluid and Lubricant Recommendations
• Fastener Caution
• Frame Replacement
• Power Steering System Description and Operation (w/o Electro-Hydraulic Steering)
• Checking and Adding Power Steering Fluid
• Steering Effort Hard or Too Easy in One or Both Directions
• Power Steering Pump Specifications
• Steering Gear Rack Bearing Preload Adjustment - Off Vehicle (Rack and Pinion)