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HOMESERVICE MANUALSMAZDA2023CX-5 SREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSAXLE - SERVICE INFORMATION (FW6AX-EL)MECHANICAL SYSTEM TESTSTALL TESTNOTES
2023 Mazda CX-5 S

Stall Test: Notes

2023 Mazda CX-5 SSECTION Notes
  1. Perform the mechanical system test preparation. (See Mechanical System Test Preparation .)
  2. Apply the parking brake firmly, and set the wheel blocks for both the front and rear wheels.
  3. Start the engine.
  4. Measure the stall speed in the D position.
    1. Strongly depress the brake pedal with the left foot.
    2. Shift the selector lever to the D position.
      CAUTION:
      • To prevent damage to the transaxle, measure the stall speed (Step (3)-(4)) within 5 s.
    3. Slowly depress the accelerator pedal fully with the right foot all the way down.
    4. Read the engine speed quickly when the speed is stabilized, and remove the right foot from the accelerator pedal.
    5. Shift the selector lever to the N position and idle for 1 min or more.
  5. Measure the stall speed in the M (1st gear) and R positions using the same procedure.
    • If there is any malfunction, one of the following causes may have occurred.
    CONDITION AND POSSIBLE CAUSE

    Condition Possible cause
    Higher than specification Higher in R, D, and M (1GR) position Line pressure is low
    • Oil pump wear
    • ATF leakage from oil pump, control valve body, and transaxle case
    • Pressure regulator valve sticking
    • TR control valve sticking
    • Pressure control solenoid operation malfunction
    • Low and reverse brake slippage, and damage of one-way clutch
    Higher in D and M (1GR) position
    • Low clutch slippage
    • One-way clutch damage
    Higher in R position Perform road test to determine whether problem is in R-3-5 brake or low and reverse brake
    • Engine brake operates in M (1GR) position
      • R-3-5 brake slippage
    • Engine braking does not operate in M (1GR) position
      • Low and reverse brake slippage
    Lower than specification Lower in R, D, and M (1GR) position
    • Engine malfunction
    • One-way clutch slippage in torque converter
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.