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AUTOMATIC TRANSMISSION
21 - 85
(7) H o l d t h e valve body i n position a n d i n s t a l l t h e
valve body attaching bolts finger t i g h t only.
(8) I n s t a l l n e u t r a l start a n d backup l a m p switch i n
case.
(9) Move m a n u a l lever t o N e u t r a l position.
(10) Move valve body as needed t o a l i g n n e u t r a l
finger of m a n u a l lever w i t h plunger o f n e u t r a l s t a r t
switch.
(11) T i g h t e n valve body a t t a c h i n g screws alter-
nately and evenly t o 11 N n n (100 in-lbs) torque.
(12) I n s t a l l new fluid f i l t e r o n valve body. I n s t a l l
and t i g h t e n the three, long f i l t e r screws t o 4 N n n (35
in-lbs) torque.
(13) I n s t a l l m a n u a l a n d t h r o t t l e levers on t h r o t t l e
lever shaft. T i g h t e n lever clamp screws and check for
free operation. Shaft a n d levers m u s t operate freely
w i t h o u t any b i n d .
(14) I n s t a l l o i l p a n a n d n e w gasket. Tighten p a n
bolts to 17 N n n (150 in-lbs) torque.
(15) Connect n e u t r a l s w i t c h a n d lockup
solenoid
wires.
(16) I n s t a l l t h e speedometer p i n i o n gear, adapter
and distance sensor.
(17) Lower t h e vehicle.
(18) F i l l transmission w i t h Mopar A T F Plus, type
7176, or Dexron II™ f l u i d .
(19) Adjust gearshift a n d t h r o t t l e linkage.
TRANSMISSION COOLER SERVICE
FLUSHING
COOLERS
AND LINES
I f a transmission m a l f u n c t i o n contaminates t h e
f l u i d , t h e cooler a n d lines m u s t be reverse flushed
thoroughly. This is necessary t o prevent sludge a n d
particles from flowing back i n t o t h e transmission af-
t e r repair. The f l u s h i n g procedure
applies to stan-
dard a n d a u x i l i a r y coolers.
Pressure equipment is preferred for cooler reverse
flushing. However, reverse f l u s h i n g can be performed
w i t h hand operated equipment as follows.
Flushing Procedure
(1) Identify a n d disconnect t h e cooler pressure a n d
r e t u r n lines a t t h e transmission.
(2) Position a d r a i n p a n under t h e cooler pressure
l i n e t o catch m a t e r i a l flushed t h r o u g h t h e cooler and
lines.
(3) Reverse flush t h e cooler u s i n g a h a n d operated
suction g u n f i l l e d w i t h m i n e r a l spirits. Insert t h e
g u n nozzle (or hose) into t h e cooler r e t u r n line. Then
force m i n e r a l spirits i n t o t h e line a n d t h r o u g h t h e
cooler.
(4) Continue reverse f l u s h i n g u n t i l t h e f l u i d e x i t i n g
t h e cooler pressure line is clear and free from debris.
R e p l a c e t h e c o o l e r i f f l u i d c a n n o t b e p u m p e d
t h r o u g h i t .
(5) Clear t h e f l u s h i n g materials f r o m t h e cooler
and lines w i t h short pulses o f compressed air. Insert
the a i r g u n nozzle i n t o t h e cooler r e t u r n l i n e a n d
continue the short a i r pulses u n t i l a l l fluid is cleared
from t h e cooler a n d lines.
(6) P u m p one q u a r t o f automatic transmission
fluid
t h r o u g h t h e cooler a n d lines before reconnecting t h e
lines.
CHECKING
COOLER
FLUID
FLOW
Cooler flow is checked, b y measuring the amount o f
f l u i d pumped t h r o u g h t h e cooler i n a specified t i m e
by t h e transmission o i l p u m p .
(1)
Disconnect
t h e cooler r e t u r n line from t h e
transmission a n d place i t i n a one q u a r t test con-
tainer.
(2) A d d extra q u a r t of fluid t o transmission.
(3) Use stopwatch t o check test t i m e .
(4) Shift into N e u t r a l .
(5) S t a r t a n d r u n engine a t curb idle speed a n d
note cooler flow. A m i n i m u m o f one q u a r t (0.9 l i t e r )
of fluid should flow i n t o test container i n 20 seconds.
(6) I f fluid flow i s i n t e r m i t t e n t , flows less t h a n one
quart i n 20 seconds, or fails t o flow a t a l l , cooler i s
plugged or damaged and should be replaced.
I f a transmission malfunction contaminates t h e
fluid,
the
fluid
coolers a n d lines m u s t be
flushed
thoroughly. T h i s is necessary t o prevent sludge a n d
particles from flowing back i n t o t h e transmission af-
ter repair. T h e flushing procedure applies t o stan-
dard and a u x i l i a r y coolers.
MAIN COOLER
REPLACEMENT
The m a i n transmission cooler is located i n t h e r a -
diator lower t a n k . T h e cooler is n o t a serviceable
component. I f the cooler i s damaged i n any w a y , t h e
radiator w i l l have t o be replaced.
AUXILIARY
COOLER
REPLACEMENT
(1) Remove g r i l l e .
(2) Remove brackets securing cooler to radiator a n d
raditor support ( F i g . 23).
(3) T a g cooler hoses for i n s t a l l a t i o n reference ( F i g .
23).
(4) Position d r a i n p a n under cooler lines.
(5) Loosen cooler connecting hose clamps a n d dis-
connect t h e hoses.
(6) Remove t h e cooler
(7) Connect cooler t o hoses.
(8) Position cooler on r a d i a t o r a n d i n s t a l l cooler
support brackets a n d a t t a c h i n g fasteners.
(9) T i g h t e n cooler hose clamps securely.
(10) I n s t a l l g r i l l e .
(11) Check a n d adjust transmission fluid level.
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