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Home >> Infiniti >> 1992 >> Q45 Base >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - Power >> Testing >> Steering Wheel Turning Force

Steering Wheel Turning Force

  1. Ensure tires are inflated to normal pressure. Park vehicle on a level, dry surface. Set parking brake, and start engine. Bring power steering fluid to an operating temperature of 140-176°F (60-80°C).
  2. Turn steering wheel 360 degrees from its neutral position. Steering wheel turning force should be 7-9 lbs. (29-39 N) or less. If force is not to specification, check rack sliding force to determine condition of steering gear assembly.
  3. Disconnect steering column lower joint and knuckle arms from steering gear. Start engine, and run it at idle to ensure steering fluid has reached an operating temperature of 140-176°F (60-80°C).
  4. Slowly move tie rod approximately .45" (12 mm). Average rack sliding force on G20 and M30 is 64 lbs. (284 N). On Q45, sliding force is 37-51 lbs. (167-226 N). Maximum rack sliding force should be no more than 9 lbs. (39 N) greater than average sliding force. If rack sliding force is not within specification, repair steering gear assembly.
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