Shift Point Road Test

This test verifies that the shift control system is operating properly.

1. Bring engine and transmission up to normal operating temperature.
2. Operate vehicle with transmission selector in D range.
3. Apply minimum throttle and observe speeds at which upshift occurs and torque converter engages. See the following Shift Speeds chart in this section.
4. Stop the vehicle. Depress transmission control switch and overdrive "off" switch (O/D OFF) to activate D range. Repeat Step  3 . Transmission will make all upshifts except 4-5 and torque converter clutch apply should occur above 46 km/h (27 mph).
5. Press accelerator pedal to floor, wide open throttle (WOT). Transmission should shift from third to second, or third to first, depending on vehicle speed, and torque converter clutch should release.
6. With vehicle speed above 48 km/h (30 mph), move the selector lever from D range to 1 range (LOW) and release accelerator pedal. Transmission should immediately downshift to third gear. When vehicle speed drops below 32 km/h (20 mph), transmission should downshift into first gear.
7. If transmission fails to upshift/downshift or torque converter clutch does not apply/release, see SYMPTOM TROUBLESHOOTING CHART - AUTOMATIC TRANSMISSION  .