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

Road Test

  1. Drive vehicle with gearshift lever in "OD" position, and allow transaxle to reach normal operating temperature. Check minimum throttle upshifts in Overdrive. Transaxle should start in 1st gear, shift to 2nd, 3rd, and 4th gear at specified speeds. See F4E-III SHIFT SPEEDS  table.
  2. With transaxle in 4th gear (Overdrive), press Transmission Control Switch (TCS), if equipped. Transaxle should downshift to 3rd gear. Release accelerator pedal. Engine braking should occur.
  3. Press accelerator pedal to WOT. Transaxle should shift from 3rd to 2nd gear, or 3rd to 1st gear depending on vehicle speed. Torque converter clutch should disengage, and then reapply.
  4. With transaxle in "OD" position, and vehicle speed less than 68 MPH with half throttle, move gearshift lever to manual "2" position. Release accelerator pedal. Transaxle should immediately downshift to 2nd gear. Move gearshift lever to manual "1" position. Transaxle should downshift to 1st gear at speeds less than 27 MPH.
  5. If transaxle fails to operate normally or torque converter does not apply and release properly, diagnose problem by symptom. See appropriate SYMPTOM DIAGNOSIS under TROUBLE SHOOTING  .
    F4E-III SHIFT SPEEDS

    Operating Condition Shift Speed (MPH)
    "OD" & "D"(1) Range (Half Throttle) (2)
    1-2 17-21
    2-3 33-41
    3-4 51-61
    "OD" & "D" Range (WOT) (3)
    1-2 34-38
    2-3 65-70
    3-4 82-88
    "OD" & "D" Range (Coast) (4)
    4-3 17-20
    3-2 6-10
    2-1 6-10
    "OD" & "D" Range (Kickdown)
    4-3 78-84
    3-2 60-64
    2-1 24-27
    "OD" & "D" Range To "L" Range
    1-2 (Half Throttle) (2) 27-30
    2-1 (WOT) (3) 27-30
    (1) Highest gear available in this position is 3rd.
    (2) TP sensor voltage is 1.6-2.2 volts.
    (3) TP sensor voltage is 4.0 volts.
    (4) TP sensor voltage is .5 volt. Closed throttle, coasting condition. Downshift is gradual and may not be felt.