Shift Point Road Test
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.
NOTE:
If equipped, turn the power take-off (PTO) unit off for correct test results. For a description of PTO operation, refer to TRANSMISSION ELECTRONIC CONTROL SYSTEM .
This test verifies that the shift control system is operating correctly.
- Bring engine and transmission up to normal operating temperature.
- Operate the vehicle with the transmission range selector lever in (D) range.
- Apply minimum throttle and observe the speeds at which the upshift occurs and the torque converter engages. Refer to Shift Speed Application Charts .
- With the vehicle in OVERDRIVE (fourth gear), depress the transmission control switch. The transmission should downshift to third gear. Remove foot from accelerator pedal; engine braking should occur.
- Press accelerator pedal to floor (wide-open throttle). Transmission should shift from third to second gear or third to first, depending on vehicle speed. Torque converter clutch should disengage and then reapply.
- With vehicle in the (D) range above 80 km/h (50 mph) and less than half throttle, move the transmission range selector lever from (D) range to MANUAL 2 range and remove foot from accelerator pedal. The transmission should immediately downshift into second gear. With the vehicle remaining in MANUAL 2 range, move transmission range selector lever into MANUAL 1 range. Transmission should downshift into first gear at speeds BELOW 53 km/h (33 mph).
- If transmission fails to upshift/downshift or torque converter clutch does not apply and release, refer to DIAGNOSIS BY SYMPTOM for concern diagnosis.