DIAGNOSIS AND TESTING - 41TE TRANSAXLE
GENERAL DIAGNOSIS
NOTE: Before attempting any repair on a 41TE four-
speed automatic transaxle, check for diagnostic
trouble codes (DTC’s) using the DRB scan tool.
Refer to the Transmission Diagnostic Procedures
Manual.
Transaxle malfunctions may be caused by these
general conditions:
• Poor engine performance
• Improper adjustments
• Hydraulic malfunctions
• Mechanical malfunctions
• Electronic malfunctions
Diagnosis of these problems should always begin
by checking the easily accessible variables: fluid level
and condition, gearshift cable adjustment. Then per-
form a road test to determine if the problem has been
corrected or that more diagnosis is necessary. If the
problem persists after the preliminary tests and cor-
rections are completed, hydraulic pressure checks
should be performed.
DIAGNOSIS AND TESTING - ROAD TEST
Prior to performing a road test, verify that the
fluid level, fluid condition, and linkage adjustment
have been approved.
During the road test, the transaxle should be oper-
ated in each position to check for slipping and any
variation in shifting.
If the vehicle operates properly at highway speeds,
but has poor acceleration, the converter stator over-
running clutch may be slipping. If acceleration is nor-
mal, but high throttle opening is needed to maintain
highway speeds, the converter stator clutch may
have seized. Both of these stator defects require
replacement of the torque converter and thorough
transaxle cleaning.
Slipping clutches can be isolated by comparing the
“Elements in Use” chart with clutch operation
encountered on a road test. This chart identifies
which clutches are applied at each position of the
selector lever.
A slipping clutch may also set a DTC and can be
determined by operating the transaxle in all selector
positions.
ELEMENTS IN USE AT EACH POSITION OF SELECTOR LEVER
Shift Lever
Position
INPUT CLUTCHES HOLDING CLUTCHES
Underdrive Overdrive Reverse 2/4 Low/Reverse
P - PARK X
R - REVERSE X X
N - NEUTRAL X
OD -
OVERDRIVE
First X X
Second X X
Direct X X
Overdrive X X
D - DRIVE*
First X X
Second X X
Direct X X
L - LOW*
First X X
Second X X
Direct X X
* Vehicle upshift and downshift speeds are increased when in these selector positions.
21s - 72 41TE AUTOMATIC TRANSAXLE PL
41TE AUTOMATIC TRANSAXLE (Continued)
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