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Home >> Ford >> 2001 >> Explorer Chassis >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Overhaul - 5R55E >> Performance Tests >> Road Test

Road Test

  1. Ensure engine and transmission are at normal operating temperature. Road test vehicle in "D" position (overdrive on). Apply minimum throttle and observe speeds at which upshifts occur and Torque Converter Clutch (TCC) applies. For vehicle shift speed specifications, see appropriate table under SHIFT SPEED TABLES  .
  2. Stop vehicle. Press TCS switch. The O/D OFF light will illuminate. Repeat step  1 . Transmission will make all upshifts except 4-5 and TCC should apply above 29 MPH.
  3. Press accelerator pedal to floor (WOT). Transmission should downshift from 4th to 3rd, 3rd to 2nd or 3rd to 1st gear, depending on vehicle speed and TCC should release.
  4. With vehicle speed at about 30 MPH in "D" position, manually shift transmission into "1" position (manual low) and release accelerator pedal. Transmission should shift into 3rd gear. When vehicle speed drops below 20 MPH, transmission should downshift into 1st gear.
  5. If transmission fails to upshift/downshift or TCC does not apply/release, see SYMPTOM DIAGNOSIS  under TROUBLE SHOOTING.
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