GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Spark 🢒 Transmission 🢒 Automatic Transmission - Jatco 🢒 Mechanical Component Description

Oil Pump
Object Number: 1348502 Size: SH

The trochoid oil pump is installed at input shaft inside of the AT case.

Oil pump is operated by the torque converter sleeve case. Therefore, lubrication inside the AT is not carried out when the engine stops.

Oil Cooler
Object Number: 1348504 Size: SH

The built-in (case-combined) water-cooled oil cooler (1) is installed on the AT case.

Select Lever

The select lever is a floor type. "N" and "D" can be selected freely; "P" to/from "R", "N" to "R", "D" to "2", and "2" to "L" are selected by pressing the button.

Important: Be sure to observe the following points when operating the shift lever. Otherwise, it may cause the interior of the automatic transmission to be damaged or the vehicle to start suddenly.

  1. "P" should be selected when the vehicle has been brought to a complete stop.
  2. Shifting from forward ranges ('D", "2", or "L") to reverse ("R") and vice versa should only happen when the vehicle has been brought to complete standstill.
  3. If the engine is turning over at high speed when "N" or "P" is selected, do not select another range.
  4. While driving the vehicle, do not drive continuously with the "N" range is selected or do not repeat the shift operation to the "N" range.

Select Lever Positions

Position

Description

"P" - Parking Position
    • The output shaft of transmission is mechanically locked.
    •  Engine can be started.
    • The key interlock mechanism of the ignition key is released.
    • When the ignition key is ON, shifting to another range is possible by pressing the button while depressing the brake pedal.

"R" - Reverse position

Selected when the vehicle is to be moved backward.

"N" - Neutral position

Engine can be started.

"D" - Normal driving position
    •  Shifts automatically between 1st and 2nd, 2nd and 3rd, and 4th gears in response to the vehicle speed and accelerator opening angle.
    • Shifting gear is limited to 3rd when O/D is OFF.

"2" - Position selected when engine braking is desirable or you want to limit the gear to 2nd.

Shifts automatically between the 1st and 2nd gears.

"L" - 1st gear position

Selected when climbing a steep slope or powerful engine braking is desirable when driving downhill.