Aerostar AWD V6-245 4.0L (1990)
Shifter A/T: Description and Operation
SELECTOR SHIFT PATTERNS
NOTE: The A4LD uses a seven position, Select Shift control. It is linked to the manual lever on the transmission to select the desired operating
position.
1. In the (Park) position the transmission is in neutral. The output shaft is locked to the case by engaging a parking pawl within the paring gear. The
engine can be started in this selector position. This is the only position in which the ignition key can be removed.
2. In the R (Reverse) position the transmission is in reverse at a reduced ratio.
3. In the N (Neutral) position the transmission is in neutral but the output shaft is not locked to the case. The engine can be started, and the parking
brake applied, since the rear wheels are free to turn.
4. The OD (Overdrive) position is the normal driving position. Selection of this position provides all automatic shifts including the application and
release of the converter clutch. The transmission may also be shifted manually between all forward ranges.
5. The D (Drive) position provides all automatic shifts, including the application and release of the converter clutch, except the shift into overdrive.
This position can be used when overdrive is not wanted such as hilly/mountainous terrain or trailer towing.
6. The 2 (Manual Second) position provides only 2nd gear operation regardless of vehicle speed. It is useful for start-up on slippery surfaces or to
provide engine braking on downgrades.
7. The Manual Low) position, when Selected at start-up, provides only 1st gear operation. Selection of this position at higher speeds results in a
downshift to second gear. An automatic downshift to low will occur only after vehicle speed decreases to approximately 30 mph, dependent on
axle ratio and tire size. Once in low, the transmission will stay in low until the selector lever is moved to another position.
