Towing; Periodic Service Recommendations; Transmission Serial Number; Transmission Fluid - Pontiac Grand Prix Service Manual

7E-2 1969
PONTIAC SERVICE MANUAL
TOWING
If the transmission, drive line or axle do not have a
malfunction, the vehicle may be towed in neutral, with
steering column unlocked, at speeds up to 45 mph. The
distance should not exceed 50 miles.
For higher speeds or extended distances, it is recom-
mended that the propeller shaft be disconnected or the
rear wheels be off the ground.
TRANSMISSION SERIAL NUMBER
The serial number plate on the Turbo Hydra-Matic
(M-40) is located on the right side of the transmission,
just forward of the governor. The serial numbers
are
all preceded by either PA, PB, PC, PH, PQ, PR,
PS,
PT,
PV, PW or PX. The application of each transmis-
sion is as follows:
PA-428 cu. in. 4 barrel engine (Pontiac)
PB-400 cu. in. 2 barrel regular fuel engine (Pontiac)
PC-428 cu. in. H.O. engine (Pontiac)
PH-428 cu. in. Bonneville engine (Pontiac)
PQ-400 cu. in. Ram Air engine (GTO and Firebird)
PR-428 cu. in. 4 barrel and 428 cu. in. H.O. engines
(Grand Prix)
PS-350 cu. in. H.O. engine (Tempest and Firebird)
PT-400 cu. in. 2 barrel regular fuel engine (GTO and
Grand Prix)
W-350 cu. in. 2 barrel regular fuel engine (Tempest
and Firebird) with A/C
PW-400 cu. in. 4 barrel engine (Grand Prix)
PX-400 cu. in. 4 barrel c engine (GTO and Firebird)
It is very important that any communications concern-
ing Turbo Hydra-Matic (M-40) always contain the
transmission serial number and the vehicle identifica-
tion number (Fig. 73-2). All transmission parts re-
turned to Pontiac Motor Division must always be
tagged with the transmission serial number.
PERIODIC SERVICE RECOMMENDATIONS
TRANSMISSION Fluid
Transmission fluid level should be checked (with
transmission hot) every time engine oil level is checked
or every 6000 miles when engine oil is changed.
CA UTION: Since the Turbo Hydra-Matic (M-40)
transmission is very sensitive to oil level, special
precautions should be taken when checking the oil level,
to ensure against an over-11 (see Checking Procedure,
page 7E-4).
Transmission fluid should be changed every 24,000
miles or 24 months. When the car is in heavy duty
service (police, taxi, fleet service, or constant use in
heavy metropolitan area traffic), it is recommended
that the fluid be changed at 12,000 mile intervals.
ADJUSTMENTS WITH TRANSMISSION I N
CAR
SHIFT CONTROL AND BACK DRIVE LINKAGE
ADJUSTMENT
COLUMN SHIFT CONTROLS
NOTE: For Pontiac models, see Fig. 7E-3; for Tempest
and Grand Prix models, see Fig 7E-4; for Firebird
models, see Fig. 7E-5.
1. Loosen screw (nut
-
Firebird) onoadjusting swivel
clamp.
2. Set transmission range selector lever in PARK
detent.
NOTE: Obtain PARK position by rotating transmission
range selector lever clockwise (View A).
3. Set upper gearshift lever in PARK position and lock
ignition.
4. Push up on gear shift control rod to take up
clearance in steering column lock mechanism and
tighten screw on adjusting swivel clamp to 20 Ib. ft.
(except Firebird); tighten nut on adjusting swivel
clamp to 30 lb. ft. (Firebird only).
CONSOLE SHIFT CONTROLS
NOTE: For Tempest and Grand Prix models, see Fig.
7E-6; for Firebird models, see Fig. 7E- 7.
1. Disconnect shift cable from transmission selector
lever by removing nut from pin.
2. Adjust back drive linkage by following the procedu-
res under COLUMN SHIFT CONTROLS.
3. After adjusting column controls, unlock ignition and
rotate transmission range selector lever counterclock-
wise two detent positions.
4. Set console gearshift lever in NEUTRAL range and
move it forward against its stop in NEUTRAL.
5. Assemble shift cable and pin to transmission range