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Anonymous Posted on Aug 09, 2014

Where is the power steering pump located? - 2011 Acura TSX

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George Obray

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  • Posted on Aug 10, 2014
George Obray
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ELECTRIC POWER STEERING (EPS)
The TSX uses Electric Power Steering (EPS) which regulates steering via a computer-actuated electric motor. With the computer-controlled system, advanced algorithms built into the operating software allow for continuous fine-tuning of the steering assist forces so that minimal force is required at low speeds- such as when parking or maneuvering. Conversely, progressively higher steering effort is generated at higher speeds (such as when driving on the freeway) to deliver a sport-minded driving experience.
The EPS system found in the TSX is an evolution of an earlier EPS system found on the Acura NSX supercar. Its key features and advantages include:

  • The EPS system reduces the steering effort at low speeds, improving agility and ease of effort when parking or maneuvering in tight areas
  • Rigidity of the steering mount is higher, which allows a more precise and "connected" feel during high-speed maneuvers (such as during lane changes or when on winding mountain roads)
  • The EPS steering assist incorporates computer algorithms based on vehicle speed rather than engine speed, allowing TSX engineers the flexibility of tailoring the steering feel to match actual driving conditions- especially high-speed driving. The EPS steering algorithms incorporate steering assist changes for every 0.6 mph.
  • The EPS system is different (and uniquely tuned) for each of the TSX models: 2.4L I-4 sedan, 3.5L V-6 sedan, and the new Sport Wagon.
  • EPS employs a sporty, 13.5:1 steering ratio which further improves performance driving agility
  • In its evolution from the original NSX system, the TSX's EPS system uses a significantly more powerful electric motor teamed with a far more sophisticated microprocessor
  • By eliminating the conventional power steering pump assembly, EPS uses less engine power which improves acceleration and fuel efficiency
it is an electric pump without a pulley or belt or fluid apparently

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Perhaps this link will be helpful
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Power Steering Pump Removal & Installation Power Steering Pump (2V) To Remove:
  1. Before servicing the vehicle refer to the precautions at the beginning of this section.
  2. Disconnect the battery ground cable.
  3. Remove the accessory drive belt.
  4. Remove the alternator.
  5. Drain and remove the radiator coolant recovery reservoir.
  6. Position a drain pan under the power steering pump underneath the vehicle. Disconnect the hydraulic pressure and return lines and allow to drain.
  7. Remove the idler pulley from the power steering pump support.
  8. Remove the belt tensioner.
  9. Remove the bracket mounting bolt located under the belt tensioner mounting.
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  11. Clamp the pump support bracket in a suitable vise.
  12. Remove the power steering pump pulley from the pump shaft using Pump Pulley Remover T69L-10300-B, or equivalent. Remove the three bolts retaining the power steering pump to the power steering pump support and remove the power steering pump.

To Install:
NOTE: The pulley must be installed within 0.010 in (0.25 mm) flush with the power steering pump shaft.

  1. Install the power steering pump to the power steering pump support. Tighten the mounting bolts to 18 ft-lb. (25 Nm).
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  3. Install the power steering pump/pump support and torque nuts/bolt to 24 ft. lbs. (33 Nm).
  4. Install the bracket mounting bolt located under the belt tensioner mounting.
  5. Install the belt tensioner.
  6. Install the idler pulley to the power steering pump support.
  7. Connect the hydraulic pressure and return lines.
  8. Install the radiator coolant recovery reservoir.
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  10. Install the accessory drive belt.
  11. Fill the power steering reservoir with power steering fluid.
  12. Connect the battery ground cable.
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