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Home >> Mazda >> 2006 >> 6 s, 4D Wagon, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Automatic Transaxle [Service, Removal & Installation FS5A-El)) >> Mechanical System Test >> Stall Test

Stall Test

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  1. Perform mechanical system test preparation. (See MECHANICAL SYSTEM TEST PREPARATION ).
  2. Start the engine and shift the selector lever to R position.
    CAUTION:
    • Do not maintain WOT in any position/range for more than 5 seconds, or transaxle damage will occur.
  3. Firmly depress the brake pedal with the left foot, and depress the accelerator pedal to floor (WOT) with the right.
  4. When the engine speed no longer increases, quickly read the engine speed and release the accelerator pedal.
  5. Shift the selector lever to N position and let the engine idle for 1 minute  or more to cool the ATF.
  6. Perform stall tests of D, M (1GR, 2GR) ranges in the same manner.
  7. Turn off the engine.

Engine stall speed 

ENGINE STALL SPEED

Position/range Engine stall speed (RPM)
D, M (1GR, 2GR) 2,200-2,800
R

Evaluation of stall test 

EVALUATION OF STALL TEST

Condition Possible cause
Above specification Insufficient line pressure, torque converter pressure
  • Worn oil pump
  • Oil leaking from oil pump, control valve, and/or transaxle case
  • Pressure regulator valve sticking
  • Converter relief valve sticking
  • Pressure control solenoid malfunction
In D, M (1GR, 2GR) ranges
  • Forward clutch slipping
In M (2GR) range
  • 2-4 brake band slipping
In M (1GR) range and R position
  • Low and reverse brake slipping
In R position
  • Low and reverse brake slipping
  • Reverse clutch slipping
  • Perform road test to determine whether problem is in low and reverse brake or reverse clutch
  • Engine braking felt in M (1GR) range: Reverse clutch is defective.
  • Engine braking not felt in M (1GR) range: Low and reverse brake is defective.
Below specification
  • Engine lack of power