General Description. Geo Tracker - 2WD 1997

For 1990-2009 cars

The Hydra-Matic 3L30 transmission is a fully automatic unit for rear wheel drive vehicles which provides three forward gear ranges and a reverse.

The major components of this transmission are:

• | Torque converter clutch assembly

• | Gear type oil pump

• | Low band assembly

• | Three multiple disc clutches

• | Planetary gear set

• | One sprag clutch

• | Valve body assembly

The oil pressure and shift points are controlled by a vacuum modulator that senses engine torque as a relation to engine vacuum.

You can operate the transmission in any one of the following six modes:

• | P--Park position prevents the vehicle from rolling either forward or backward. For safety reasons, use the parking brake in addition to the park position.

• | R--Reverse allows the vehicle to be operated in a rearward direction.

• | N--Neutral allows the engine to be started and operated without driving the vehicle. If necessary, you may select this position in order to restart the engine with the vehicle moving.

• | D--Drive position is used for normal driving conditions. Drive position provides three gear ratios plus a converter clutch operation. Downshifts are available for safe passing by depressing the accelerator.

• | 2--Manual second provides acceleration and engine braking. You may select this range at any vehicle speed.

• | 1--Manual Low provides maximum engine braking. You may select this range at any vehicle speed.