| SUBJECT: Transaxle Slips Momentarily During Light
Throttle 23 Upshifts |
| NO: 212395 Rev. A |
| GROUP: Transmission |
DATE: Jan. 26, 1996
NOTE: THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 212395, DATED DEC. 22, 1995,
WHICH SHOULD BE REMOVED FROM YOUR FILES. A LABOR OPERATION DUMBER IS REVISED AND
HIGHLIGHTED WITH **ASTERISKS**. |
MODELS: 1995 1996 (PL) Neon
NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 31TH TRANSAXLE. |
SYMPTOM/CONDITION:
Transaxle slips momentarily (engine RPM increases/flares) during light throttle 23
upshifts. |
DIAGNOSIS:
Road test the vehicle. Accelerate at light throttle to
achieve a 23 upshift at 1822 MPH and listen for the engine to flare. If the engine
flares during the 23 upshift, perform the Repair Procedure. |
PARTS REQUIRED:
1 (AR) 4669863 Bracket, Kickdown With Single Over Head Cam
(SOHC) Engine
1 (AR) 4669864 Bracket, Kickdown With Double Over Head Cam (DOHC) Engine
1 (AR) 4659879 Valve Body
1 (AR) 4269649 Filter, Transaxle Oil
AR 4798233 Fluid, Mopar Automatic Transmission Type 7176 |
REPAIR PROCEDURE:
This bulletin involves adjusting the throttle pressure cable;
or replacing the kickdown bracket on the throttle body and adjusting the throttle pressure
cable; or replacing the kickdown bracket on the throttle body and valve body and adjusting
the throttle pressure cable.
1. Check the throttle pressure cable for proper adjustment (there should be no backlash)
adjust if needed, use the following procedure while the engine is at normal operating
temperature:
A. Release the crosslock on the throttle pressure cable assembly (pull the crosslock
up). Refer to Figure 1.
B. To ensure proper adjustment, the cable must be free to slide all the way toward the
engine (against its internal stop) after the crosslock is released. Move the transaxle
throttle control leveler fully clockwise (against its internal stop) and press the
crosslock down into the locked position.
Adjustment is now complete and any throttle cable backlash
has been automatically removed. Test the throttle pressure cable assembly for freedom of
operation by moving the transaxle throttle control lever forward (counterclockwise). Then
slowly release the lever to confirm it will return fully rearward (clockwise). No
lubrication is required for the throttle cable system.
C. Road test the vehicle to verify the flare condition is corrected.
2. If the flare condition persists, replace the kickdown bracket on the throttle body with
the appropriate bracket specified in the Parts Required section of this bulletin. Then
perform Step 1 again.
3. If the flare condition persists, replace the transaxle valve body (P/N 4659879), use
the following procedure:
A. Record the radio station presets and disconnect the battery cables.
B. Pull the Power Distribution Center (PDC) up and out of its holding bracket. Set the PDC
aside to gain clearance.
C. Remove the battery from the vehicle and disconnect the cruise control, if equipped.
D. Loosen the throttle pressure cable lever and gear shift cable lever pinch bolts. Refer
to Figure 2. Remove both 1 levers from their r shafts
and set aside de
E. Raise the vehicle on an appropriate hoist.
F. Clean the bottom of the transaxle.
G. Remove the transaxle oil pan and properly dispose of the fluid. Be sure to remove all
sealant from the mating surfaces.
H. Remove the neutral start/backup lamp switch. Refer to Figure
3.
I. Remove and discard the transaxle oil filter.
J. Remove the "E"clip holding the parking rod to the valve body and separate
the rod from the valve body. Refer to Figure 4.
K. Remove the 7 bolts attaching the valve body to the transaxle and separate the valve
body and governor tubes from the transaxle. Refer to Figure
5.
L. Install the new valve body (P/N 4659879) and governor tubes to the transaxle, torque
the 7 attaching bolts to 105 in. lbs. (12 Nm).
M. Install the parking rod and secure with the "E"clip previously removed.
N. Install a new transaxle oil filter (P/N 4269649), torque the screws to 40 in. lbs. (5
Nm).
O. Install the neutral start/backup lamp switch.
P. Apply a 1/8 in. (3 mm) bead of Mopar Silicone Sealant (P/N 4318025) to the transaxle
oil pan mounting flange. Attach the transaxle oil pan to the transaxle and torque the
attaching bolts to 165 in. lbs. (19 Nm).
Q. Install the throttle pressure cable lever and gear shift cable lever on their shafts
and tighten their pinch bolts.
R. Lower the vehicle and connect the cruise control, if equipped.
S. Install the battery, PDC and connect the battery cables.
T. Add 4 quarts Mopar Automatic Transmission Fluid Type 7176 (P/N 4467721) through the
dipstick opening.
U. Start the engine, and allow to idle for a minimum of one minute. With the parking brake
and the service brakes applied, move the gear selector lever momentarily to each gear
position. Place the gear selector lever in either park or neutral.
V. Check the transaxle fluid level and add an appropriate amount of transmission fluid to
bring the level to 1/8 in. (3 mm) below the ADD mark on dipstick.
W. Recheck the fluid level after the transaxle is at normal operating temperature. The
level should be in the HOT range of the dipstick.
X. Repeat Step 1 of this bulletin.
Y. Program the previously recorded radio station presets, and set the clock.
|
| POLICY: Reimbursable within the provisions of the
warranty. |