AUTOMATIC SHIFTS WILL OCCUR UNDER THE FOLLOWING CONDITIONS
TYPE OF SHIFT
APPROXIMATE SHIFT POINT
2.7L / 3.2 L 3.5L
4-3 coast downshift 13 mph 13 mph
3-2 coast downshift 9 mph 9 mph
2-1 coast downshift 5 mph 5 mph
1-2 upshift 6300 engine rpm 6600 engine rpm
2-3 upshift 6300 engine rpm 6600 engine rpm
4-3 kickdown shift 13-47 mph w/sufficient throttle 13-47 mph w/sufficient throttle
MANUAL SHIFTS ARE NOT PERMITTED UNDER THE FOLLOWING CONDITIONS
TYPE OF SHIFT APPROXIMATE SHIFT POINT
3-4 upshift Below 15 mph
3-2 downshift Above 74 mph @ closed throttle or 70 mph otherwise
2-1 downshift Above 41 mph @ closed throttle or 38 mph otherwise
DIAGNOSIS AND TESTING
42LE GENERAL DIAGNOSIS
CAUTION: Before attempting any repair on the
42LE Four Speed Automatic Transaxle, always
check for proper shift linkage adjustment. Also
check for diagnostic trouble codes with the DRB
scan tool and the 42LE Transaxle Diagnostic Proce-
dure Manual.
42LE automatic transaxle malfunctions may be
caused by these general conditions:
• Poor engine performance
• Improper adjustments
• Hydraulic malfunctions
• Mechanical malfunctions
• Electronic malfunctions
When diagnosing a problem always begin with
recording the complaint. The complaint should be
defined as specific as possible. Include the following
checks:
• Temperature at occurrence (cold, hot, both)
• Dynamic conditions (acceleration, deceleration,
upshift, cornering)
• Elements in use when condition occurs (what
gear is transaxle in during condition)
• Road and weather conditions
• Any other useful diagnostic information.
After noting all conditions, check the easily acces-
sible variables:
• Fluid level and condition
• Shift linkage adjustment
• Diagnostic trouble code inspection
Then perform a road test to determine if the prob-
lem has been corrected or that more diagnosis is nec-
essary. If the problem exists after the preliminary
tests and corrections are completed, hydraulic pres-
sure checks should be performed.
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.
21 - 20 42LE TRANSAXLE LH
DESCRIPTION AND OPERATION (Continued)
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