1988 PONTIAC FIERO transmission

7A44 AUTOMATIC "PANSMISSION ON-VEHICLE SERVICE
Fig. 1 Shift Control Cable Attachments
4. Neutral starthack-up lamp switch.
5. Floorshift control bolts.
Install or Connect
1. Floorshift control bolts.
- 5 N-m (44 lbs. in.)
2. Neutral starthack-up lamp switch.
- 2 N.m (18 lbs. in.)
- Adjust switch
3. Cable at base and control lever.
4. Console, see Section 8C.
5. Adjust shift control cable.
6. Negative battery cable.
PARK/LOCK CONTROL CABLE
Remove or Disconnect (Fig. 3)
1. Negative battery cable
2. Place transmission control lever in "Park".
3. Turn ignition key to "run" position.
Important
s Do not attempt to proceed to Step 4 with
key in any other position.
4. Slip a screwdriver blade into slot provided in
ignition switch inhibitor, depress cable latch and
pull cable from inhibitor.
5. Push cable connector lock button at the shifter
base to the up position.
6. Snap cable from park lock lever pin.

AUTOMATIC TMNSMISSION ON-VEHICLE SERVICE 7A1-5
7. Depress two cable connector latches and remove
from shifter base.
8. Cable clips
Install or Connect
1. With cable lock button in the up position and
shift lever in the "Park" position, snap cable
connector into shifter base.
2. With ignition key in "run" position; snap cable
into inhibitor housing.
Important
e Do not attempt to insert cable with key in
any other position.
3. Turn ignition key to "Lock".
4. Snap cable end onto shifter park lock lever pin.
5. Push cable connector hose forward to remove
slack.
6. With no load applied to connector nose, snap
cable connector lock button down.
Inspect
Functional Operation
1. With the shift lever in "Park" and the key
in "Lock" position, make sure that you
cannot move the shifter lever to another
position. Ignition key should be removable
from column.
2. With the key in "run" and the shift lever in
"Neutral", make sure that you cannot turn
the key to "Lock".
3. If the above conditions are met, the system
is properly adjusted. Proceed to Step
5.
4. If the above conditions are not met, put
cable connector lock back to the up position
and readjust as indicated in Steps
5 and 6
above, then push cable connector lock
button down and recheck operation.
5. If key cannot be removed in "Park"
position, snap connector lock button to up
position and move cable connector nose
rearward until key can be removed from
ignition.
6. Snap lock button down.
7. Reinstall cable into clips to provide correct
routing.
PARK/NEUTRAL AND BACK-UP LAMP
SWITCH
Remove or Disconnect (Fig. 4)
1. Negative battery cable.
2. Console, see Section 8C.
3. Mounting bolts.
4. Switch
Using Old Switch
Install or Connect :
1. Place shift control lever shaft in "NEUTRAL" Align
carrier tang on switch with tang slot on
shift control.
Assemble mounting bolts-to-case, loosely.
Rotate switch to align service adjustment hole
with carrier tang hole.
Insert gage pin
(2.34mm/3/32") in service
adjustment hole and rotate switch until pin drops
in to a depth of 15 mm
(19/32").
Torque bolts.
- 2 N.m (1 8 lbs. in.).
Gage pin
Console, see Section
8C.
Negative battery cable.
Important
After switch adjustment, verify that engine
will only start in
"PARK" or
"NEUTRAL". If engine will start in any
other position readjust switch.
Using New Switch
Install or Connect
1. Place shift control lever in "NEUTRAL".
2. Insert carrier tang on switch in slot on shifter.
3. Mounting bolts and torque.
- 2 N-m (18 lbs. in.)
If bolt holes do not align with shift control verify
shift control lever is in "NEUTRAL" position,
do not rotate switch. Switch is pinned in
"NEUTRAL" position.
e If switch has been rotated and pin broken,
switch can be adjusted by using the Using
Old Switch" procedure.
4. Move shift control lever out of ""Neutral"
position to shear plastic pin.
Important
After switch installation verify that engine
will only start in "PARK" and
"NEUTRAL". If engine will start in any
other position, readjust switch using "Old
Switch" procedure.
5. Console, see Section
8C.
6. Negative battery cable.
T.V. CABLE
The T.V. cable used on the 700-R4 transmission
controls line pressure, shift points, shift feel, part
throttle downshifts and detent downshifts. The T.V.
cable operates the throttle valve lever
anu bracket
assembly in the control valve.
The Throttle Valve Lever and Bracket Assembly
serves two
(2) basic functions:
1. To
transfer the throttle lever movement to the
T.V. plunger in the control valve assembly. This
causes T.V. pressure and line pressure to increase
according to engine throttle
openiq : and controls
part throttle and detent downshifts.
2. To prevent the transmission from operating at
low (idle) pressures, if the
T.V. cable should

Fig. 3 Park Lock Cable
SWITCH
( BOLTS 2 N.m (18 LBS. IN.)
1 GAGE PIN
1 CARRIER TANG
1 TANG SLOT
1 DETENT PLATE
( PARK NOTCH
1 NEUTRAL NOTCH
1 SHIFT CONTROJLE$5t,-F
Fig. 4 Park/Neutral & Backup Lamp Switch
become broken or disconnected. If the cable is not
connected or broken, the
T.V. lifter rod will not
move from its normal position which holds the
T.V. exhaust check ball off its seat. The T. V.
lifter rod will drop down to allow the T.V.
exhaust ball to seat only if the cable is broken,
disconnected or out of adjustment. With the
transmission pan removed, pull down on the
T.V.
exhaust valve lifter rod and the spring should
return the rod to its normal up position. If the
throttle valve lever and bracket assembly or lifter
rod binds or sticks so that the
T.V. lifter rod
cannot lift the exhaust ball off its seat, high line
pressures and delayed upshifts will result. The
T.V. lifter rod must not be bent or it will not
function properly.
T.V. CABLE SYSTEM DIAGNOSIS
Inspect
CAUTION: To avoid possible personal
injury and/or damage to the car,
brakes must be applied at all times
during the test.
1. Install oil pressure gage.
2. Install engine tachometer.
3. Warm up engine to proper operating
temperature.
4. Run engine at 1000 RPM.
5. Apply parking brake.
6. Place gear selector in "PARK" and note oil
pressure.

AUTOMATIC TRANSMISSION ON-VEHICLE SERVICE 7A1-7
7. Place
gear selector into "DRIVE". Oil Pressure
should be equal or not more than 10 psi
(34 kPa)
higher than in "PARK".
8. Increase engine speed to 1400 RPM. If oil
pressure does not increase, adjust
T.V. cable.
Refer to T.V. Cable Adjustment.
Remove or Disconnect (Figs. 5 thru 7)
1. Air cleaner.
2. T.V. cable terminal from throttle lever.
3. Cable housing from bracket while compressing
locking tangs.
4. Routing clips or straps.
5. Raise
car, see Section OA.
6. Bolt securing T.V. cable to transmission.
o Pull up on cable cover at transmission until
cable is visible.
7. Cable from transmission link.
8. Cable seal.
Install or Connect
1. New seal into transmission case hole.
2. Transmission end of cable to T.V. link and secure
to transmission case with bolt and washer
assembly. Torque to 10
Nam (7 Ib. ft.).
3. Cable routing clips or straps.
4. Lower car.
5. Pass cable through engine bracket and engage
locking tangs of cable on bracket.
6. Avoid damaging or kinking wire cable.
7. Cable terminal to throttle lever.
Inspect
o Pull on upper end of cable. It should travel
a short distance with light resistance caused
by the small return spring on the
T.V. lever.
When releasing the upper end of the T.V.
cable, it should return to the zero T.V.
position.
Adjust
o T.V. cable. Refer to Figs. 5 thru 7.
CHANGING FLUID AND FILTER
Remove or Disconnect
1. Raise the car and support properly, see Section
OA.
2. Place drain pan under transmission oil pan.
3. Oil pan bolts from the front and sides only.
4. Loosen rear oil pan bolts approximately 4 turns.
NOTICE: Do not damage the transmission case
or oil pan sealing surfaces.
5. Lightly tap oil pan with rubber mallet or pry to
allow fluid to drain.
- Inspect fluid color
- Refer to chart in Section 7A
6. Remaining oil pan bolts, oil pan and gasket. 7. Oil filter
and o-ring
- O-ring may be stuck in the case
e Transmission case and oil pan gasket
surfaces with solvent and air dry.
- All traces of old gasket material must
be removed
Install or Connect
o Coat o-ring seal with a small amount of
petrolatum
o New o-ring onto filter
e New filter into case
a Oil pan and new gasket
e Oil pan bolts 20 N.m (15 lbs. ft.)
8. Lower car.
9. Fill transmission to proper level with
DEXRONO I1 fluid or equivalent, see Section
7A.
10. Check "Cold"
fluid level reading for initial till.
Do not overfill.
11. Follow
the "Transmission Fluid Level Checking
Procedure" in Section 7A of this Service Manual.
12. Check
oil pan gasket for leaks.
700-R4 SERVICEABLE COMPONENTS
The following parts can be serviced with the
transmission in the vehicle:
o Throttle valve control cable and/or sleeve heal
Fill tube and/or seal
o Governor assembly
a Speedometer drive and/or driven gear
e Servo assembly
a Valve body assembly, spacer plate, gaskets,
throttle lever and bracket assembly, auxiliary
valve body, TCC solenoid, switch and
wir-iug.
a Converter to flexplate bolts.
a Oil pan and/or gasket, strainer assembly and "0"
ring.
e Pressure Regular Valve.
o Rear Oil Seal.
SERVO ASSEMBLY
Remove or Disconnect (Fig. 8)
Tool Required:
J 29714-A
1. Raise car and suitably support, see Section OA.
2. Torque Arm,
see Section
3D.
3. Propeller Shaft, see Section 4A.
4. Exhaust hanger.
5. Support transmission.
6. Crossmember and transmission moulll.
7. Two
transmission oil pan bolts below servo cover.
8. Install J 29714-A on oil pan and reinstall oil pan
bolts.
9. Depress servo cover
and remove retaining ring.
10. J 29714-A.

7A1-8 AUTOMATIC TRANSMISSION ON-VEHICLE SERVICE
RE-ADJUST TAB
ADJUSTMENT PROCEDURE RE-ADJUSTMENT PROCEDURE
1 AFTER INSTALLATION OF CABLE TO THE IN
CASE RE-ADJUSTMENT IS NECESSARY BECAUSE OF
TRANSMISSION, ENGINE BRACKET, AND INADVERTANT ADJUSTMENT BEFORE OR DURING ASSEMBLY,
CABLE ACTUATING LEVER, CHECK TO OR
FOR REPROCESSING. PERFORM THE FOLLOWING
ASSURE THAT THE CABLE SLIDER IS
IN THE ZERO OR FULLY RE-ADJUSTED
1 DEPRESS AND HOLD METAL RE-ADJUST TAB
POSITION (IF NOT, REFER TO
RE-ADJUSTMENT PROCEDURE)
2 MOVE SLIDER BACK THROUGH FITTING IN
DIRECTION AWAY FROM CABLE ACTUATING
2 ROTATE THE CABLE ACTUATING LEVER LEVER
UNTIL SLIDER STOPS AGAINST FITTING
TO ITS "FULL TRAVEL POSITION". 3 RELEASE METAL RE-ADJUST TAB 3 SLIDER MUST MOVE (RATCHET) TOWARD
LEVER WHEN LEVER IS ROTATED TO 4 REPEAT STEPS 2 AND 3 OF ADJUSTMENT PROCEDURE
"FULL TRAVEL POSITION"
Fig. 5 T.V. Cable - V.I.N. E

7A1-10 AUTOMATIC TRANSMISSION ON-VEHICLE SERVICE
rRE-ADJUSTMENT TAB
ADJUSTMENT PROCEDURE
RE-ADJUSTMENT PROCEDURE
1 AFTER INSTALLATION OF CABLE TO THE
ENGINE BRACKET AND THROTTLE 1 DEPRESS AND HOLD METAL RE-ADJUSTMENT TAB.
IDLER LEVER, CHECK TO
2 MOVE SLIDER BACK THROUGH FITTING IN ASSURE THAT THE CABLE SLIDER IS
DIRECTION AWAY FROM THROTTLE IDLER
IN THE ZERO OF
FULLY RE-ADJUSTED
LEVER UNTIL SLIDER STOPS AGAINST FITTING
POSITION (IF NOT, REFER TO THE
RE-ADJUSTMENT PROCEDURE)
3 RELEASE RE-ADJUSTMENT TAB
2 ROTATE THE THROTTLE IDLER LEVER TO 4 REPEAT STEP 2 81 3 OF ADJUSTMENT PROCEDURE
THE "FULL TRAVEL STOP POSITION
3. SLIDER MUST MOVE (RATCHET) TOWARD
LEVER WHEN LEVER IS ROTATED TO
"FULL TRAVEL STOP POSITION"
4. RELEASE LEVER
Fig. 7 T.V. Cable - V.I.N. F and 8

AUTOMATIC TMNSMISSIOM ON-VEHICLE SERVICE 7A1-%I
11. Cover and seal ring.
- Seal may stick in case.
12. Servo
piston and bore apply pin assembly.
1 1. J 29714-A 2 2-4 SERVO COVER I
Fig. 8 Servo Cover
Inspect
e Refer to the Unit Repair Section for
disassembly and inspection procedures.
lnstall or Connect
Servo piston and bore apply pin assembly.
Seal ring and cover.
J 29714-A and two oil pan bolts.
Depress cover and install retaining ring.
Remove
J 29914-A and bolts.
Oil pan bolts.
- 20 N-m (15 lbs. ft.)
Crossmember and transmission mount.
Crossmember Bolts
- 54 N-m (40 Ibs. ft.)
e Mount to Crossmember Nut
47 Nm (35
Ibs. ft.)
e Mount to Transmission Bolts
- 54 N-m (40 lbs. ft.)
Remove transmission support.
Exhaust hanger.
Propeller Shaft, see Section 4A.
Torque Arm, see Section 3D.
Lower car.
Adjust
a Check and adjust fluid level, see Section 7A.
- Dexron I1 Automatic Transmission Fluid.
SPEEDOMETER DRIVE GEAR
Remove or Disconnect (Fig. 9)
1. Raise car, see Section OA.
2. Speedometer cable from transmission.
3. Speedometer driven gear and sleeve assembly. 4.
Torque arm, see Section 3D.
5. Propeller Shaft, see Section
4A.
6. Extension housing bolts.
7. Extension housing.
8. Speedometer drive gear and retaining clip.
Install or Connect (Fig. 10)
1.
Speedometer drive gear and retaining clip.
2. Seal
ring and extension housing.
3. Extension housing bolts.
- 34 N.m (26 Ibs. ft.).
4. Propeller Shaft, see Section 4A.
5. Torque Arm, see Section 3D.
6. Speedometer driven gear and sleeve assembly.
7. Speedometer cable.
8. Lower car.
a Adjust
e Check and adjust fluid level, see Section 7A.
- Dexron I1 Automatic Transmission Fluid
SPEEDOMETER DRIVEN GEAR
Remove or Disconnect (Fig. 9)
1. Raise car, see Section OA.
2. Speedometer cable.
3. Speedometer
driven gear and sleeve assembly.
Install or Connect
1. Speedometer driven gear and sleeve assembly.
a Use new "0" ring on sleeve.
2. Speedometer cable.
3. Lower car.
GOVERNOR
Remove or Disconnect (Fig. 9)
1. Raise car and suitably support, see Section OA.
2. Governor cover and "0" ring using
a
screwdriver.
e Use extreme care not to damage cover and
case.
3. Governor assembly.
4. Refer to the Unit Repair Section for disassembly
and inspection procedures.
Install or Connect
1. Governor assembly.
2. Governor
cover with a new
"0" ring.
e Apply sealant such as Loctite Cup Plug
Sealant
I1 or equivalent to the cover.
3. Lower car.
Adjust
e Check and adjust fluid level, see Section 7A.
e Inspect for leaks at cover.

7A1-12 AUTOMATIC TRANSMISSION ON-VEHICLE SERVICE
SOME MODELS I--- - .-
10 CASE, TRANSMISSION 35 SEAL, CASE EXTENSION TO CASE
36 EXTENSION, CASE 37 BOLT, CASE EXTENSION TO CASE 39 SEAL ASSEMBLY, CASE EXTENSION OIL 40 RETAINER, SPEEDO DRIVEN GEAR FITTING
41 BOLT €31 WASHER ASSEMBLY 42 SEAL, "0" RING (SPEEDO FITTING TO
CASE EXTENSION)
43 FITTING ASSEMBLY, SPEEDO DRIVEN GEAR
44 GEAR, SPEEDO DRIVEN 45 GOVERNOR ASSEMBLY
46 COVER, GOVERNOR
98 NUT, FLANGED HEX
99 SPEED SENSOR, INTERNAL TRANSMISSION
100 STUD, DOUBLE END 687 SHAFT, OUTPUT 688 CLIP, SPEEDO DRIVE GEAR
689 GEAR, SPEEDO DRIVE
690 SLEEVE, OUTPUT SHAFT NOT USED ON 691 SEAL, OUTPUT SHAFT ALL MODELS
FILLER TUBE
Remove or Disconnect (Fig. 1 1)
1. Fluid, level indicator.
2. Raise car and suitably support, see Section OA.
3. Bolt retaining filler tube to transmission.
4. Loosen tube from transmission.
5. Lower car.
6. Pull tube out of car from the top.
Install or Connect
1. Filler tube.
2. Raise car.
3. Locate filler tube on transmission.
- Use new filler tube seal.
4. Filler tube bolt to transmission.
@ 47 N.m (35 lbs, ft.) - V8
@ 75 N-m (55 lbs. ft.) - V6
5. Lower car.
6. Fluid level indicator.
e Check and adjust fluid level, see Section 7A.
e Inspect for leaks.
Fig. 9 Speedometer Drive/Driven Gears
688 CLIP, SPEEDO DRIVE GEAR
689 GEAR, SPEEDO DRIVE
699 ROTOR, INTERNAL TRANSMISSION SPEED
SENSOR
J10007-7A1 -F
Fig. 10 Drive Gear
1. V6- 75 N.rn (55 LBS. FT.) V8-47 N.rn (35 LBS. FT.)
2. FILLER TUBE
3. FLUID LEVEL INDICATOR
4. SEAL
Fig. 11 Filler Tube and Indicator
PRESSURE REGULATOR VALVE
Remove or Disconnect
1. Raise car and suitably support, see Section OA.
2. Drain transmission oil pan.
3. Oil pan and screen.
4. Compress
pressure regulator valve with small
screwdriver.