Steering Wheel Effort Inspection

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the following points:
- Tire size and tire pressure
- Fluid level
- Drive belt deflection
With the vehicle on a hard, level surface, put the wheels in the straight-ahead position.
Remove the air bag module.
WARNING:
- See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] or DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] for removal/installation of the air bag module after inspection.
Start the engine and warm the power steering fluid to 50-60 °C {122-140 °F} .
Measure the steering wheel effort using a torque wrench.
- If not within the specification, inspect the following:
  - Air in steering system
  - Fluid leakage at hose or connectors
  - Function of oil pump and steering gear
Steering wheel effort
1. 7.8 N.m {80 kgf.cm, 69 in.lbf} max.
Fig 1: Measuring Steering Wheel Effort Using Torque Wrench
Courtesy of MAZDA MOTORS CORP.
NOTE:
- To determine whether the steering effort is satisfactory or not, perform the inspection on another vehicle of the same model and under the same conditions, and compare the results.
- The steering wheel effort varies with conditions as shown below.
  - Road conditions, such as dry or wet, and asphalt or concrete.
  - Tire conditions, such as brand, wear, and tire pressure.