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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Automatic Transmission - Diagnosis [La4A-El]) >> Performance Tests >> Road Test

Road Test

WARNING: This page is about a different car, the 2002 Mazda 626 and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure engine and transaxle are at normal operating temperature. Road test vehicle in "D" (overdrive on) position. Apply minimum throttle and observe speeds at which upshift occurs and torque converter engages. See SHIFT SPEED SPECIFICATIONS .
  2. Stop vehicle. Accelerate vehicle to 12-15 MPH. Release throttle and allow vehicle to coast. Monitor downshift speeds. Downshift is gradual and may not be felt.
  3. Accelerate vehicle until transaxle shifts into 4th gear. Depress Transaxle Control Switch (TCS). Transaxle should downshift into 3rd gear. Release throttle. Engine braking should occur. TCC should disengage and then reapply.
  4. Press accelerator pedal to floor (WOT). Transaxle should downshift from 3rd-to-2nd gear, or 3rd-to-first gear depending on vehicle speed. Torque converter clutch should unlock.
  5. Accelerate vehicle to about 50 MPH in "D" position. Manually shift transaxle into 2nd gear. Transaxle should shift into 2nd gear. Manually shift transaxle into first gear. When speed drops below 28-32 MPH, transaxle will downshift into first gear.
  6. If transaxle fails to upshift/downshift or torque converter clutch does not lock/unlock, see TROUBLE SHOOTING .