SECTION 6B
POWER STEERING PUMP
SPECIFICATIONS
General Specifications
Application | Description |
Lubricant | Power Steering Fluid DEXRON® II D |
Pressure | 7,088 - 8,619 kPa (1,028 - 1,250 psi) |
Type | Vane |
Displacement | 8.5 cc/rev |
Capacity | 0.66 Liter |
Fastener Tightening Specifications
Application | N•m | Lb-Ft | Lb-In |
Air Cleaner Housing Bolts | 12 | - | 106 |
Power Steering Pump Front Shackle Bolt | 20 | 15 | - |
Power Steering Pump Rear Shackle Bolt | 22 | 16 | - |
Power Steering Pump Bolt | 22 | 16 | - |
Power Steering Pump Retaining Nut | 25 | 18 | - |
Power Steering Pump Pressure Line Union Nut | 28 | 21 | - |
Tension Pulley Securing Bolt | 25 | 18 | - |
SPECIAL TOOLS
Special Tools Table
 
| DW110-080 Serpentine Accessory Drive Belt Remover |
DIAGNOSIS
Power Steering Pump Diagnosis
Foaming, Milky Power Steering Fluid, Low Fluid Level, and Possible Low Pressure
Checks | Action |
Check the power steering fluid level. | Fill the power steering fluid reservoir. |
Check for air contamination in the power steering fluid. | Bleed the power steering system. |
Check the power steering pump for internal leaks and overflow. | Replace the power steering pump. |
Check the power steering pump housing and the soft plug for leaks. | Replace the power steering pump. |
Low Pressure Due to Steering Pump
Checks | Action |
Check the power steering pump flow control valve for sticking and improper operation. | Replace the power steering pump. |
Check the power steering pump seals for wear. | Replace the power steering pump. |
Check the pressure plate, the pump ring, the thrust plate, and the rotor for scores, cracks, or breaks. | Replace the power steering pump. |
Check the vanes for sticking in the rotor slots. | Replace the power steering pump. |
Check the power steering pump for internal leaks and overflow. | Replace the power steering pump. |
Growling Noise in Steering Pump
Checks | Action |
Check the pump hoses and the steering gear pipes for restricted flow. | Clean out the pipes and the hoses. Replace the pipes and the hoses as needed. |
Check the pressure plate, the pump ring, the thrust plate, and the rotor for scores, cracks, or breaks. | Replace the power steering pump. |
Check the power steering hose for contact with the body. | Secure the pump hose in a clamp away from the body. |
Check the power steering fluid level. | Fill the power steering pump reservoir. |
Rattling Noise in the Steering Pump
Checks | Action |
Check for air contamination in the power steering fluid. | Bleed the power steering system. |
Check the power steering hose for contact with the body. | Secure the pump hose in a clamp away from the body. |
Check the power steering fluid level. | Fill the power steering pump reservoir. |
Check the pump mounting for improper installation. | Tighten the power steering pump attachment bolts. |
Swishing Noise in the Steering Pump
Checks | Action |
Check the power steering pump flow control valve for damage. | Replace the power steering pump. |
Whining Noise in the Steering Pump
Checks | Action |
Check the pressure plate and the vanes for scores. | Replace the power steering pump. |
Check the pump shaft bearing for scores. | Replace the power steering pump. |
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
Serpentine Accessory Drive Belt
Tools Required
DW110-080 Serpentine Accessory Drive Belt Remover
Removal Procedure
- Remove the air cleaner housing by removing the housing bolts and loosening the clamp.
- Use serpentine accessory drive belt remover to turn the tensioner bolt clockwise, compressing the tensioner, and releasing the tension on the serpentine accessory drive belt.
- Remove the serpentine accessory drive belt.
Installation Procedure
- Use serpentine accessory drive belt remover to turn the tensioner bolt clockwise, compressing the tensioner, and releasing the tension on the serpentine accessory drive belt.
- With the wrench in place on the tensioner bolt, loop the serpentine accessory drive belt loosely over the pulleys.
- Slip the belt over the tensioner.
- Remove the wrench from the tensioner bolt and the belt will tighten itself.
- Install the air cleaner housing with the housing bolts and the clamp.
Tighten
Tighten the air cleaner housing bolts to 12 N•m (106 lb-in).
- If the pump was removed from the engine, bleed the power steering system. Refer to Section 6A, Power Steering System.
Notice : When adding fluid or making a complete fluid change, always use DEXRON® II D power steering fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks.
- Inspect for leaks. If leaks are found, correct the cause of the leak and bleed the system.
Pump Assembly (1.2 Engine)
Removal Procedure
- Match-mark on the pump and the rear shackle to keep tension equally before removal.
- Drain the power steering fluid after disconnecting the pressure and supply lines from the pump.
- Remove the rear shackle bolt and pump retaing bolt, pressure switch connector.
- Remove the pump assembly after removing the front shackle bolt.
Installation Procedure
- Install the rear shackle bolt and pump bolt loosely to adjust belt tension.
- Tighten the bolts after adjusting belt tension.
Tighten
Tighten the rear shackle bolt to 22 N•m (16 lb-ft).
Tighten the pump bolt to 22 N•m (16 lb-ft).
- Install the front shackle bolt.
Tighten
Tighten the front shackle bolt to 20 N•m (15 lb-ft).
- Connect the pressure and supply lines, pressure switch connector to the power steering pump.
Tighten
Tighten the pressure line union nut to 28 N•m (21 lb-ft).
Notice : When adding fluid or making a complete fluid change, always use DEXRON® II D power steering fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks.
- Refill the pump with new fluid and bleed the air from the system. Refer to Section 6A, Bleeding the Power Steering System.
- Inspect for leaks. If leaks are found, correct the cause of the leak and bleed the system.
Pump Assembly (1.4 & 1.6 Engine)
Removal Procedure
- Remove the serpentine accessory drive belt. Refer to "Serpentine Accessory Drive Belt" in this section.
- Drain the power steering fluid after disconnecting the pressure and supply lines from the pump.
- Remove the pump assembly by removing the steering pump retaining nuts.
Installation Procedure
- Install the pump to the A/C compressor bracket and tighten the steering pump retaining nuts.
Tighten
Tighten the steering pump retaining nuts to 25 N•m (18 lb-ft).
- Connect the pressure and supply lines to the power steering pump.
Tighten
Tighten the pressure line union nut to 28 N•m (21 lb-ft).
- Install the serpentine accessory drive belt. Refer to "Serpentine Accessory Drive Belt" in this section.
Notice : When adding fluid or making a complete fluid change, always use DEXRON® II D power steering fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks.
- Refill the pump with new fluid and bleed the air from the system. Refer to Section 6A, Bleeding the Power Steering System.
- Inspect for leaks. If leaks are found, correct the cause of the leak and bleed the system.
GENERAL DESCRIPTION AND SYSTEM OPERATION
Power Steering Pump
General Description
The pump has a remote fluid reservoir. A pressure-relief valve inside the flow control valve limits pump pressure.
Seals
Seal Replacement
Lip seals, which seal the rotating shafts, are used on the driveshaft of the pump. This type of seal requires special treatment. When leakage occurs in this area, always replace the seal after inspecting and thoroughly cleaning the sealing surfaces. If the corrosion in the lip seal contact zone is slight, clean the surface of the shaft with a crocus cloth. Replace the shaft only if the leakage cannot be stopped by first smoothing the shaft with the crocus cloth.
