Depending on date of manufacture, some transax-
les will utilize a new identification label located in
the same location as shown in (Fig. 2). This label can
be broken down as follows (Fig. 3):
If the tag is not legible or missing, the “PK” num-
ber, which is stamped into the transaxle case, can be
referred to for identification. This number differs
slightly in that it contains the entire transaxle part
number, rather than the last three digits.
OPERATION
Transmission output is directed to an integral dif-
ferential by a transfer gear system in the following
input-to-output ratios:
First 2.84 : 1
Second 1.57 : 1
Third 1.00 : 1
Overdrive 0.69 : 1
Reverse 2.21 : 1
DIAGNOSIS AND TESTING
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 Procedure Man-
ual.
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
Fig. 2 Transaxle Identification Label
1 - INPUT SPEED SENSOR
2 - OUTPUT SPEED SENSOR
3 - IDENTIFICATION TAG
Fig. 3 Identification Label Breakdown
1 - T=TRACEABILITY
2 - SUPPLIER CODE (PK=KOKOMO)
3 - COMPONENT CODE (TK=KOKOMO TRANSMISSION)
4 - BUILD DAY (344=DEC. 9)
5 - BUILD YEAR (9=1999)
6 - LINE/SHIFT CODE (3=3RD SHIFT)
7 - BUILD SEQUENCE NUMBER
8 - LAST THREE OF P/N
9 - NIK
10 - TRANSAXLE PART NUMBER
11 - P=PART NUMBER
21 - 4 TRANSAXLE LH
42LE AUTOMATIC TRANSAXLE (Continued)
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