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Home >> Volvo >> 1993 >> 850 Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - Aw50-42LE >> Testing >> Stall Speed Test

Stall Speed Test

  1. Operate engine and transaxle at normal operating temperature. Connect tachometer to vehicle and ensure it is visible to driver. Apply parking brake and block all 4 wheels.
    CAUTION: DO NOT  maintain stall speed RPM for more than 5 seconds. Transaxle damage may occur.
  2. Ensure A/C is off. Start engine, apply brakes and place transaxle in "D" position. Depress accelerator to full throttle and note maximum RPM obtained. Repeat test in "R" position. For stall speed specifications, see the STALL SPEED SPECIFICATIONS  table.
    STALL SPEED SPECIFICATIONS

    Engine Application RPM
    2.3L Turbo 2900
    2.4L (10-Valve) 2600
    2.4L (20-Valve) 2650
  3. If stall speed RPM recorded is lower or higher then specified, check fluid color and odor. If fluid color and odor is normal, replace torque converter. If fluid is discolored or has a burnt smell, manufacturer recommends replacing transaxle as an assembly.
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