Shift Point Road Test
This test verifies that the shift control system is operating correctly.
- Bring engine and transaxle up to normal operating temperature.
- Operate vehicle with selector lever in D range.
- Apply minimum throttle and observe speeds at which upshift occurs and torque converter engages using the shift speeds chart.SHIFT SPEEDS
Throttle Position Range Shift KM/H MPH Closed Throttle D 4-3 47 29 D
D3-2
2-124
1015
6Min. Throttle D 1-2 14 9 (TP voltage 1.25) D
D2-3
3-427
6117
38Wide Open D 1-2 68 42 Throttle D 2-3 109 68 D 3-4 154 96 D 4-3 146 91 D
D3-2
2-198
4561
28 - Stop vehicle, with the selector lever in the D range, press the overdrive cancel button. Repeat Step 3. Transaxle will make all upshifts except 3-4 and torque converter clutch apply should occur above 40 km/h (25 mph).
- With vehicle speed above 43 km/h (27 mph), press accelerator pedal to floor, wide-open throttle (WOT). Transaxle should shift from 3rd to 2nd, or 3rd to 1st, depending on the vehicle speed. The torque converter clutch should release.
- With vehicle speed above 56 km/h (35 mph), move the selector lever from D range to 1 range (LOW) and remove foot from accelerator pedal. Transaxle should immediately downshift to 2nd gear. When vehicle speed drops below 45 km/h (28 mph), transaxle should downshift into 1st gear.
- If transaxle fails to upshift/downshift or TCC does not apply and release, refer to DIAGNOSIS BY SYMPTOM for possible causes.
NOTE:
Shift speed ranges are approximate for all applications. For specific applications (engine, axle ratio and application) refer to the Automatic Transmission Specification Issue available from Ford Customer Service Division.