Question about 2005 Cadillac Deville

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Loss of power steering

At idel rpm (650) steering is lost without loss of rpm-increase of rpm returns power steering-fluid level ok-belt tensioner ok-have unpluged from rack & pinion-no change (i assume this is a pressure switch to increase rpm)

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If memory serves me correctly... the 05 deville is equipped with "Magnasteer" the electical connector at the rack and pinion is not a pressure sensor unless its on the line itself. The system operates by inducing voltage to magnets in the rack to make turning easier at lw speeds while adding resistance at higher speeds for added control and less drift. Check for any codes on your climate control by pushing "off and warmer" at the same time with the engine off, key on. Google the codes and see if any relate to the steering system and repost! I hope that helps!

Posted on Jun 04, 2009

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Sudden Loss of power steering whilst driving. No symptoms, noises, etc. before hand. Power steering fluid level is normal.


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Power steering for my Bora/Jetta 4 V5 has suddenly gone and its hard.


Priority Action Part Type Cause
1 Inspect Power Steering Fluid Low Power Steering Fluid Level.
2 Inspect Power Steering Pump Worn out or Damaged Power Steering Pump.
3 Inspect Power Steering Hose Leaking or Incorrectly Installed Power Steering Hose.
4 Inspect Belt Tension Incorrect Belt Tension Will Allow Belts to Slip.
5 Inspect Belt Incorrectly Routed, Adjusted(Tensioned), Missing or Worn Drive Belt(s).
7 Inspect Ball Joint-upper Worn, Damaged, or Faulty Ball Joint.
8 Inspect Ball Joint-Lower Malfunctioning Ball Joint.

What happes when a vehicle experiences a loss of power steering, is that the car reverts to a
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Removing power steering pump from v8 windsor


Section 11-02A: Steering Pump, Power, C-II 1996 Aerostar, Ranger and Explorer Vehicles Workshop Manual REMOVAL AND INSTALLATION Pump and Pulley SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Steering Pump Pulley Remover T69L-10300-B Steering Pump Pulley Replacer T65P-3A733-C
Removal
  1. Disconnect the power steering return hose (3A713) at the pump and drain fluid.
  1. Remove the power steering pressure hose (3A719) by unscrewing connector from the pump.
  1. On the Aerostar 3.0L V-6 engine (6007), loosen the drive belt tensioner (6B209) and adjustment bolts.





    Item Part Number Description 1 10346 Generator 2 8501 Water Pump 3 8678 Belt Idler Pulley 4 3A733 Power Steering Pump Pulley 5 6303 Crankshaft 6 2884 A/C Clutch 7 — Without A/C On the 2.3L I-4 and 4.0L V-6 engines, slacken belt tension by lifting drive belt tensioner in a counterclockwise direction. On Ranger 3.0L V-6 engines, slacken belt tension by lifting drive belt tensioner in a clockwise direction. Remove drive belt (8620) from under drive belt tensioner and slowly lower pulley to stop. Remove the drive belt from the power steering pump pulley (3A733).





    Item Part Number Description 1 10346 Generator 2 2884 A/C Clutch 3 3A733 Power Steering Pump Pulley 4 8501 Water Pump 5 6303 Crankshaft 6 8678 Belt Idler Pulley 7 6B209 Drive Belt Tensioner
  1. NOTE: If the drive belt requires servicing, refer to Section 03-05 .

    Remove the drive belt from the power steering pump pulley.
  1. Remove the oil dipstick tube.
  1. Remove the power steering pump support (3C511).
  1. Install Steering Pump Pulley Remover T69L-10300-B on the pulley.
  1. NOTE: Do not apply pressure on the power steering pump rotor shaft (3B559). Pressure will damage internal thrust areas of the power steering pump (3A674).

    While holding the remover tool nut stationary with a wrench, rotate the inner spindle of the remover tool clockwise until the pulley is pulled off the power steering pump rotor shaft.
  1. Remove the bolts attaching the power steering pump to the A/C compressor mounting bracket (2882).
Installation
  1. Install the power steering pump on the A/C compressor mounting bracket. Install and tighten attaching bolts to 41-61 Nm (30-45 lb-ft). On 4.0L engine, tighten to 47-64 Nm (35-47 lb-ft).
  1. Position the support on the A/C compressor mounting bracket. Install mounting bolts and tighten to 47-64 Nm (35-47 lb-ft).
  1. NOTE: Fore/aft location of power steering pump pulley on power steering pump rotor shaft is critical. Incorrect belt alignment may cause drive belt squeal or chirp. Make sure pull-off groove on power steering pump pulley is facing front and flush with end of shaft ± 0.254mm (± 0.010 inch).

    Install the Steering Pump Pulley Replacer T65P-3A733-C and install the power steering pump pulley.
  1. Install the drive belt on the power steering pump pulley.
  1. On the 2.3L I-4, Ranger 3.0L V-6, and 4.0L V-6 engines, position and rotate drive belt on engine. While lifting drive belt tensioner in a counterclockwise direction (clockwise on Ranger 3.0L V-6), slide drive belt under drive belt tensioner and lower drive belt tensioner to drive belt.
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  1. Install the power steering pump support, if removed.
  1. Install the oil dipstick tube.
  1. Install the pressure hose tube nut and new Teflon® wagner into power steering pump valve outlet fitting (3D654) and tighten to 41-54 Nm (30-40 lb-ft).
  1. Connect the power steering return hose to the power steering pump, and reposition the clamp.
  1. Fill the power steering oil reservoir (3A697) with Premium Power Steering Fluid E6AZ-19582-AA or equivalent fluid meeting specification ESW-M2C33-F. Start the engine and turn the steering wheel (3600) from left to right without hitting stops to remove air from the system.
  1. Check for leaks and recheck the fluid level. Add fluid if necessary to proper level as specified in Section 11-00 .


    Power Steering Pump and Power Steering Pulley, 2.3L TPH Engine, Ranger Only





    Item Part Number Description 1 2882 A/C Compressor Mounting Bracket 2 N606543-S2 Bolt (2 Req'd) 3 N606069-S2 Bolt (2 Req'd) 4 N605803-S2 Bolt 5 N800199-S8M Screw 6 3D673 Power Steering Pump Pulley 7 3F671 Power Steering Belt Idler Support 8 N806020-S2 Bolt 9 3A674 Power Steering Pump 10 19703 A/C Compressor A — Tighten to 21.2-29 Nm (16-21 Lb-Ft) B — Tighten to 40.3-55 Nm (30-41 Lb-Ft) C — Tighten to 44-51 Nm
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    Item Part Number Description 1 3A674 Power Steering Pump 2 3C511 Power Steering Pump Support 3 6007 Engine 4 N803564 Stud 5 N802827-S2 Nut 6 N800199-S8M Screw (3 Req'd) 7 N8011179-S2 Screw (3 Req'd) 8

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1 Answer

Want to change power steering pump



REMOVAL & INSTALLATION

  1. Disconnect the hoses at the pump and tape or plug the openings shut to prevent contamination or excessive fluid loss. Position the disconnected lines in a raised position to help prevent leakage.
  2. Remove the pump belt.
  3. Loosen the retaining bolts and any braces, then remove the pump assembly.

To install:
  1. Install the pump on the engine with the retaining bolts hand-tight.
  2. Remove the plugs or tape, then connect and tighten the hose fittings.
  3. Refill the pump with fluid and pre-bleed by turning the pulley counterclockwise (viewed from the front). Stop the bleeding when air bubbles no longer appear.
  4. Install the pump belt on the pulley, then properly adjust the belt tension and tighten the retaining bolts. Refer to of this guide for details on belt adjustment.
  5. Check for proper operation, then recheck fluid level and bleed the system, as necessary.


SYSTEM BLEEDING

  1. Fill the fluid reservoir with fresh fluid.
  2. Let the fluid stand undisturbed for two minutes, then crank the engine for about two seconds. Refill reservoir is necessary.
  3. Repeat Steps 1 and 2 above until the fluid level remains constant after cranking the engine.
  4. Raise the front of the car until the wheels are off the ground, then start and run the engine. Increase the engine speed to about 1,500 rpm.
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The steering becomes hard then easy then hard then easy. It is present when turning left and right.


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1 Answer

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CHECK LIST

  1. Check the power steering pump hoses for leaks
  2. Check the power steering pump pulley for lose fit or wobble during rotation,
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  4. Check the power steering drive belt for the proper tension.

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