General System Description
The 41TE is a four speed transaxle, in which hydraulically applied clutches shift a planetary gear train.
Virtually all functions are electronically controlled, by a fully-adaptive control system.
- - Fully-adaptive control systems perform functions based on real-time information from feedback sensors.
Gear Ratios
- Forward ratios of 2.84, 1.57, 1.00, and 0.69 with torque converter clutch application available in 2nd, direct or overdrive gear;
- Reverse ratio is 2.21.
Gear Selection
Conventional six position shift lever: P, R, N, OD, 3, and L.
Shifting and Torque Converter Lock-Up
When OD is selected the transaxle shifts normally through all four speeds with torque converter clutch engagement in overdrive.
- This position is recommended for most driving.
The 3 position is tailored for use in hilly or mountainous driving.
0 When 3 is selected, the transmission uses only 1st, 2nd, and direct gears with 2nd-direct shift delayed to 40 mph or greater.
- When operating in 3 or L positions torque converter clutch engagement occurs in direct gear for improved transmission cooling when towing trailers and on steep grades.
Note: If high engine coolant temperature occurs the torque converter clutch will also engage in 2nd gear.
The L position provides maximum engine braking for descending steep grades.
Unlike most transaxles. upshifts are provided to 2nd or direct gear at peak engine speeds, if the accelerator is depressed.
- This provides engine over-speed protection and maximum performance.
Construction
The 41TE four speed electronic transaxle consists of:
- Three multiple-disc input clutches
- Two multiple disc grounded clutches
- Four hydraulic accumulators
- Two planetary gear sets
This provides four forward ratios and a reverse ratio.
The clutch-apply pistons were designed with centrifugally balanced oil cavities.
- This allows quick response and good control at any speed.
A push/pull piston is incorporated for two of the three input clutches.
Caution: Some clutch packs appear similar, but are not the same. Do not interchange clutch components as they might fail.