1st Gear
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The transmission operates differently in 1st gear above and below 8 km/h (5 mph). Transmission operation is the same below 8 km/h (5 mph) and in the LOW position.
1st Gear Above 8 km/h (5 mph) Clutch Application Chart
| Gear | Forward (1, 2, 3, 4) | Direct (3, 5, R) | Intermediate (2, 6) | Low / Reverse (L, R) | Overdrive (4, 5, 6) | Low-OWC |
|---|---|---|---|---|---|---|
| 1st Gear D | H | H | ||||
| Planetary Components | Front sun | Rear sun | Rear sun | Rear carrier/center ring | Rear carrier/center ring | Rear carrier/center ring |
H = Holding
1st Gear LOW Position and Below 8 km/h (5 mph) Clutch Application Chart
| Gear | Forward (1, 2, 3, 4) | Direct (3, 5, R) | Intermediate (2, 6) | Low / Reverse (L, R) | Overdrive (4, 5, 6) | Low-OWC | |||
|---|---|---|---|---|---|---|---|---|---|
| 1st Gear D | H | H | H | ||||||
| Planetary Components | Front sun | Rear sun | Rear sun | Rear carrier/center ring | Rear carrier/center ring | Rear carrier/center ring | |||
H = Holding
1st Gear Above 8 km/h (5 mph) Solenoid Operation Chart
| Base Selector Lever Position | PCM Commanded Gear | SSA NL (1, 2, 3, 4) | SSB NH (3, 5, R) | SSC NL (2, 6) | SSD NH (L, R, 4, 5, 6) | SSE (On/ Off) NC | TCC NL |
|---|---|---|---|---|---|---|---|
| D | 1 | On | On | Off | On | Off | Off |
NC = Normally Closed
NH = Normally High
NL = Normally Low
1st Gear LOW Position and Below 8 km/h (5 mph) Solenoid Operation Chart
| Base Selector Lever Position | PCM Commanded Gear | SSA NL (1, 2, 3, 4) | SSB NH (3, 5, R) | SSC NL (2, 6) | SSD NH (L, R, 4, 5, 6) | SSE (On/ Off) NC | TCC NL |
|---|---|---|---|---|---|---|---|
| L | 1 | On | On | Off | Off | On | Off |
NC = Normally Closed
NH = Normally High
NL = Normally Low
Powerflow
- In first gear, the forward clutch holds the front sun gear stationary.
- The rear planetary carrier/center ring gear is held stationary by the low One-Way Clutch (OWC) and/or the low reverse (1, R) clutch.
- The turbine shaft transfers torque to the center sun gear. The center sun gear transfers the torque to the center planetary carrier/front ring gear. The front ring gear transfers torque to the front planetary carrier/rear ring gear and the output hub to produce a ratio of 4.48.