Periodic Service Recommendations; Transmission Fluid - Pontiac tempest 1968 Service Manual

7E-2 1968 P O N T I A C SERVICE MANUAL
TOWING
If the transmission, drive line or axle do not have
a malfunction, the vehicle may be towed in neutral
at speeds up to 45 mph. The distance should not
exceed 50 miles.
For higher speeds or extended distances, it is
recommended that the propeller shaft be discon­
nected or the rear wheels be off the ground.
TRANSMISSION SERIAL NUMBER
The serial number plate on the Turbo Hydra-Matic
is located on the right side of the transmission,
just forward of the governor. The serial numbers
are all preceded by either PA, P B , P C , PG, PH,
PQ, P T , PX or P Y . The application of each trans­
mission is as follows:
PA - 428 cubic inch single exhaust.
P B - 400 cubic inch 2 barrel.
P C - 428 cubic inch 4 barrel and 428 cubic inch
H.O.
PG - 400 cubic inch 4 barrel (GP).
PH - 400 and 428 cubic inch for heavy duty r e ­
quirements.
PQ - 400 cubic inch 4 barrel - Ram A i r (GTO
and Firebird).
P T - 400 cubic inch 2 barrel (GTO).
PX - 400 cubic inch 4 barrel and 400 cubic inch
H.O. (GTO and Firebird except A i r Cond.).
P Y - 400 cubic inch 4 barrel and 400 cubic inch
H.O. (Firebird with Air Cond.).
It is very important that any communications
concerning Turbo Hydra-Matic always contain the
transmission serial number and the vehicle identifi­
cation number (Fig. 7E-2). All transmission parts
returned 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.
CAUTION: Since the Turbo Hydra-Matic trans­
mission is very sensitive to oil level, special pre­
cautions should be taken when checking the oil
level, to ensure against an overfill (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 recom­
mended that the fluid be changed at 12,000 mile
intervals. .
ADJUSTMENTS WITH TRANSMISSION IN CAR
SHIFT CONTROL LINKAGE ADJUSTMENT
GEARSHIFT C O N T R O L S - COLUMN SHIFT
NOTE: For Pontiac models, see Fig. 7E-3; for
GTO models, see Fig. 7E-4; for Firebird models,
see Fig. 7E-5.
1. Loosen screw (nut - Firebird) on adjusting
swivel clamp.
2. Set transmission selector lever in DRIVE
detent.
NOTE: Obtain DRIVE position by rotating trans­
mission lever clockwise to PARK position, then
counterclockwise three positions to DRIVE po­
sition (View B).
3. Set upper gearshift lever against DRIVE stop
(View A).
4. Tighten screw on adjusting swivel clamp to
20 lb. ft. (Pontiac and GTO); tighten nut on adjusting
swivel clamp to 30 lb. ft. (Firebird only).
GEARSHIFT C O N T R O L S - CONSOLE SHIFT
NOTE: For Pontiac models, see Fig. 7E-6; for
GTO models, see Fig. 7E-7; for Firebird models,
see Fig. 7E-8.
1. Disconnect shift cable from transmission selec­
tor lever pin.
2. Rotate transmission selector lever clockwise
to PARK position and adjust pin on selector lever
to dimension shown in View A.
3. Torque selector pin nut to 30 lb. ft., set the
gearshift lever in PARK position and connect shift
cable to pin.
NEUTRALIZER SWITCH ADJUSTMENT
COLUMN SHIFT CONTROLS
NOTE: For Pontiac models, see Fig. 7E-3; for
GTO models, see Fig. 7E-4; for Firebird models,
see Fig. 7E-5.
If the starter operates in any transmission shift
lever position other than PARK and NEUTRAL, the
starter neutralizer must be adjusted as follows:
1. Insert blade of any adjusting gauge of J 22701
gauge set into R E S E T slot, exerting sufficient pres­
sure to insure full penetration (approx. 0.4") of the
blade (View A).