exchange unit. This will insure that metal particles
or sludged oil are not later transferred back into the
reconditioned (or replaced) transaxle.
The recommended procedure for cooler flushing is
to use Tool 6906 Cooler Flusher.
WARNING: WEAR PROTECTIVE EYEWEAR THAT
MEETS THE REQUIREMENTS OF OSHA AND ANSI
Z87.1–1968. WEAR STANDARD INDUSTRIAL RUB-
BER GLOVES.
KEEP LIGHTED CIGARETTES, SPARKS, FLAMES,
AND OTHER IGNITION SOURCES AWAY FROM THE
AREA TO PREVENT THE IGNITION OF COMBUSTI-
BLE LIQUIDS AND GASES. KEEP A CLASS (B) FIRE
EXTINGUISHER IN THE AREA WHERE THE
FLUSHER WILL BE USED.
KEEP THE AREA WELL VENTILATED.
DO NOT LET FLUSHING SOLVENT COME IN CON-
TACT WITH YOUR EYES OR SKIN: IF EYE CONTAM-
INATION OCCURS, FLUSH EYES WITH WATER FOR
15 TO 20 SECONDS. REMOVE CONTAMINATED
CLOTHING AND WASH AFFECTED SKIN WITH
SOAP AND WATER. SEEK MEDICAL ATTENTION.
(1) Remove cover plate filler plug on Tool 6906.
Fill reservoir 1/2 to 3/4 full of fresh flushing solution.
Flushing solvents are petroleum based solutions gen-
erally used to clean automatic transmission compo-
nents. DO NOT use solvents containing acids, water,
gasoline, or any other corrosive liquids.
(2) Reinstall filler plug on Tool 6906.
(3) Verify pump power switch is turned OFF. Con-
nect red alligator clip to positive (+) battery post.
Connect black (-) alligator clip to a good ground.
NOTE: When flushing transmission cooler and
lines, ALWAYS reverse flush.
(4) Connect the BLUE pressure line to the OUT-
LET (From) cooler line.
(5) Connect the CLEAR return line to the INLET
(To) cooler line
(6) Turn pump ON for two to three minutes to
flush cooler and lines.
(7) Turn pump OFF.
(8) Disconnect CLEAR suction line from reservoir
at cover plate. Disconnect CLEAR return line at
cover plate, and place it in a drain pan.
(9) Turn pump ON for 30 seconds to purge flush-
ing solution from cooler and lines. Turn pump OFF.
(10) Place CLEAR suction line into a one quart
container of Mopart ATF+4 (Automatic Transmission
Fluid—Type 9602).
(11) Turn pump ON until all transmission fluid is
removed from the one quart container and lines. This
purges any residual cleaning solvent from the trans-
mission cooler and lines. Turn pump OFF.
(12) Disconnect alligator clips from battery. Recon-
nect flusher lines to cover plate, and remove flushing
adapters from cooler lines.
OIL PUMP VOLUME CHECK
Measuring oil pump output volume will determine
if sufficient flow to the transmission oil cooler exists,
and whether or not an internal transmission failure
is present.
Verify that transmission fluid is at the proper
level. Refer to Fluid Level and Condition in this
Group. If adding fluid is necessary, fill to the proper
level with Mopart ATF+4 (Automatic Transmission
Fluid–Type 9602). The following procedure is to
check oil pump output volume:
(1) Disconnect the To cooler line at the oil cooler
inlet and place a collecting container under the dis-
connected line (Fig. 39).
CAUTION: With the fluid set at the proper level,
fluid collection should not exceed (1) quart or inter-
nal damage to the transmission may occur.
(2) Start engine and run at curb idle speed, with
the shift selector in neutral.
(3) If one quart of ATF is collected in 20 seconds or
less, flow is within acceptable limits. If fluid flow is
intermittent or it takes more than 20 seconds to col-
lect one quart of ATF, refer to Hydraulic Pressure
Tests in this Group.
(4) Inspect the cooler hose for damage. Replace if
necessary.
(5) Connect the To cooler hose to the oil cooler
inlet and torque clamp to 2 N·m (20 in. lbs.) torque.
(6) Refill the transaxle to proper level with
Mopart ATF+4 (Automatic Transmission Fluid–Type
9602).
Fig. 39 Cooler Line Location
1 – FROM TRANSAXLE COOLER
2 – TO TRANSAXLE COOLER
21 - 32 42LE TRANSAXLE LH
SERVICE PROCEDURES (Continued)
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