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Home >> Ford >> 2002 >> ZX2 Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - Automatic Transmission >> Performance Tests >> Stall Speed Test

Stall Speed Test

CAUTION: DO NOT allow engine to run at maximum stall speed for more than 5 seconds. Run engine with transaxle in Neutral for one minute to cool transaxle after each test is completed.
  1. Engine coolant and transaxle fluid must be at proper levels and normal operating temperatures. Connect tachometer to engine. Apply parking and service brakes firmly. Block wheels and place gearshift lever in "R" position.
  2. While observing tachometer, steadily increase engine RPM to WOT, and release within 5 seconds. DO NOT exceed 5 second limit. Engine speed should be 2400-2700 RPM.
  3. Run engine with transaxle in Neutral for at least one minute to cool transaxle. Repeat procedure in each gear range. If engine speed is not within specification, release accelerator immediately. See STALL SPEED TEST RESULTS  . If engine speed is within specification, perform TIME LAG TEST  .