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TAAT Transmission parts

Transmission general data

Number of gears Transmission Type Drive ATF (full capacity) L ATF (change) L ATF type (recommended)
4 AT FWD 6,2 4,2-5,2 Dexron VI

TAAT automatic gearbox was released in 1991 by Saturn LLC. This type of gearbox was mainly used in 1991-UP Saturn S-Series. In terms of design TAAT is a parallel shaft FWD unit with the drive gear. TAAT has 4 forward gears and 1 reverse gear by means of multidisc clutches, 4-element torque converter with a lock-up clutch, 1-st sprag-type clutch, and a tooth clutch activated by a servo unit.

What are you looking for?

Overhaul Kit | Friction Kit | Friction | Steel Plate | Steel Kit | Band | Solenoid Kit | Solenoid EPC | Solenoid TCC | Pump | Shaft | Drum | Valve body | Torque converter | Hub | Piston | Piston Kit | Planetary Gear | Filter | Gasket | Bushing | Seal | Bearing | Pressure Plate | Stator | Differential | Retainer | Inhibitor Switch | Instruction manual | TOOLS & ACCESORIES | Sensor

Which cars run with this gearbox? CLICK

Technical issues and repair guidelines

One of the main peculiarities of this transmission in comparison with common automatic gearboxes lies in the electronic control. This gearbox uses 5 solenoids together with the transmission control module and its sensors to control shift timing, shift feel, and give on board diagnostics.


Repair specialists say that the valve body is the most problematic component in TAAT. Delays, slippages, kicks or lack of Reverse during gear-shifting are likely to be caused by valve body issues. However, there are several other sources of a Reverse problem:

1. Delay or no Reverse may be caused by the loose-fitting main shaft nut

2. Malfunctioning car speed sensor may also lead to no-Reverse condition.

3. Wrong adjustment of the pattern select switch

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