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Home >> Acura >> 2005 >> RSX Base, Standard >> Repair and Diagnosis >> Steering >> Power Steering >> Power Steering System >> Symptom Troubleshooting >> Hard Steering

Hard Steering

  1. Check the power assist (see STEERING WHEEL ROTATIONAL PLAY CHECK  ).

    K20A2 engine, K20Z1 engine models: 

    Is the starting load more than 38.2 N (3.9 kgf, 8.6 lbf)? 

    K20A3 engine model: 

    Is the starting load more than 37.2 N (3.8 kgf, 8.4 lbf)? 

    1. YES -  Go to step 2.
    2. NO -  Power assist is OK.
  2. Measure steady-state fluid pressure from the pump at idle with T/N 07406-0010001 (see PUMP PRESSURE TEST WITH T/N 07406-0010001  ) or T/N 07406-001000A (see PUMP PRESSURE TEST WITH T/N 07406-001OOOA  ).

    Is the pressure 1,470 kPa (15 kgf/cm 2  , 213 psi) or less? 

    1. YES -  Go to step 3.
    2. NO -  Go to step  7 .
  3. Measure the pump relief pressure at idle with T/N 07406-0010001 (see PUMP PRESSURE TEST WITH T/N 07406-0010001  ) or T/N 07406-001000A (see PUMP PRESSURE TEST WITH T/N 07406-001OOOA  ).

    K20A2 engine model: 

    Is the pressure 7,160- 7,850 kPa (73- 80 kgf/cm 2  , 1,040- 1,140 psi) or less? 

    K20Z1 engine model: 

    Is the pressure 7,360- 8,040 kPa (75- 82 kgf/cm 2  , 1,070- 1,170 psi) or less? 

    K20A3 engine model: 

    Is the pressure 6,570- 7,260 kPa (67- 74 kgf/cm 2  , 950- 1,050 psi) or less? 

    1. YES -  Go to step 4.
    2. NO -  Faulty pump assembly.
  4. With a spring scale, measure the power assist in both directions, to the left and to the right.

    Are the two measurements within 2.9 N (0.3 kgf, 0.66 lbf) of each other? 

    1. YES -  Go to step 5.
    2. NO -  Go to step  8 .
  5. Measure the fluid pressure with T/N 07406t0010001 (see PUMP PRESSURE TEST WITH T/N 07406-0010001  ) or T/N 07406-001000A (see PUMP PRESSURE TEST WITH T/N 07406-001OOOA  ) with both pressure gauge valves open (if so equipped), while turning the steering wheel fully to the left and fully to the right.

    K20A2 engine model: 

    Is the pressure 7,160- 7,850 kPa (73- 80 kgf/Cm 2  , 1,040- 1,140 psi) or less? 

    K20Z1 engine model: 

    Is the pressure 7,360- 8,040 kPa (75- 82 kgf/cm 2  , 1,070- 1,170 psi) or less? 

    K20A3 engine model: 

    Is the pressure 6,570- 7,260 kPa (67- 74 kgf/cm 2  , 950- 1,050 psi) or less? 

    1. YES -  Go to step 6.
    2. NO -  Faulty gearbox.
  6. Adjust the rack guide (see RACK GUIDE ADJUSTMENT  ) and retest.

    Is the steering OK? 

    1. YES -  Repair is completed.
    2. NO -  Faulty gearbox.
  7. Check the feed and return lines between the pump and the gearbox for clogging and deformation.

    Are the lines clogged or deformed? 

    1. YES -  Repair or replace the lines.
    2. NO -  Faulty valve body unit or pump.
  8. Check the cylinder lines for deformation (see FLUID LEAKAGE INSPECTION  ).

    Are the lines deformed? 

    1. YES -  Replace the lines.
    2. NO -  Go to step 9.
  9. Check for a bent rack shaft or misadjusted rack guide (too tight).

    Is the rack shaft bent or the rack guide adjusted too tight? 

    1. YES -  Replace the rack or readjust the rack guide.
    2. NO -  Faulty valve body unit.
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