Stall Speed Test: Notes

2008 Mazda Tribute s Sport, 4WDSECTION Notes
WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
  • Perform the line pressure test at engine idling prior to performing the test at engine stall. If line pressure is low at idle do not perform the test at engine stall or further transaxle damage will occur.
  1. Perform mechanical system test preparation. (See MECHANICAL SYSTEM TEST PREPARATION .)
  2. Connect a tachometer.
  3. Start the engine.
  4. Shift the selector lever to D range.
    CAUTION:
    • Do not maintain WOT in any gear range for more than 5 seconds or transaxle damage will occur.
    • If engine sped recorded by the tachometer exceeds maximum specified RPM, release the accelerator pedal immediately. Clutch or band slippage is indicator.
  5. Firmly depress the brake pedal with the left foot, and gently depress the accelerator pedal to the floor (WOT) with the right.
  6. When the engine speed no longer increases, quickly read the engine speed and release the accelerator pedal.
  7. Shift the selector the to N position and let the engine idle for 1 minute or more to cool the ATF.
  8. Perform stall tests for the remaining ranges and position in the same manner.
    • R position
    • 3 range
    • 2 range

      Engine Stall Speed 

      ATF Temperature: 60-70°C {140-158°F) 

      Turn Off All Electrical Loads 

      2,100-2,500 RPM 

  9. Turn off the engine.
RENDER: 1.0x

NO RELATED

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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.