Road Testing Vehicle
WARNING: This page is about a different car, the 2018 Ford F-350 Super Duty and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Shift Point Road Test
NOTE:
Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.
Most performance based automatic transmission DTCs require the fault to be detected multiple times before setting a DTC. In many instances the faults musts be detected consecutively a predetermined number of times (up to five). Performing the shift point road test as detailed below increases the likelihood that a DTC sets if a fault is present in the system.
- Bring engine and the transmission up to normal operating temperature.
- Operate the vehicle with the selector lever in the D position.
- Apply minimum throttle and observe speeds when an upshift occurs. Refer to the Shift Speeds chart.
- With the selector lever in the D position and speed above 80 km/h (50 mph) and less than half throttle, move the selector lever from the D position to manual 2 position and release the accelerator pedal. The transmission should downshift into 2nd gear. With the transmission remaining in the manual 2 position, move the selector lever into the manual 1 position and release the accelerator pedal. The transmission should downshift into 1st gear at speeds below approximately 45-56 km/h (28-35 mph).
- If the transmission fails to upshift/downshift, REFER to: Diagnosis By Symptom .
Shift Speed
| Throttle Position | Shift | Km/h | MPH |
|---|---|---|---|
| Light Throttle | 1-2 | 13-21 | 8-13 |
| Throttle Position (TP) Sensor | 2-3 | 26-34 | 16-21 |
| Voltage @ 1.25 Volts | 3-4 | 35-43 | 22-27 |
| 4-5 | 56-64 | 35-40 | |
| 5-6 | 71-79 | 44-49 | |
| Closed Throttle | 6-5 | 56-64 | 35-40 |
| 5-4 | 40-48 | 25-30 | |
| 4-3 | 13-21 | 8-13 | |
| 3-2 | 3-11 | 2-7 | |
| 2-1 | 2-6 | 1-4 | |
| Wide Open Throttle (WOT) | 1-2 | 45-53 | 28-33 |
| 2-3 | 87-95 | 54-59 | |
| 3-4 | 140-148 | 87-92 | |