1993 PONTIAC GRAND-PRIX towing

Do not tow a trailer if your vehicle is
equipped with a 3.4L (VIN Code X)
engine and a manual transaxle.
Your Pontiac can tow a trailer if it is
equipped with a
3.1L (VIN Code T)
engine or a 3.4L (VIN Code X) engine
and an automatic transaxle, and proper
trailer towing equipment.
To identify
what the vehicle trailering capacity is
for your vehicle, you should read the
information in
Weight of the Trailer
that appears later in this section. But
trailering is different than just driving
your vehicle by itself. Trailering means
changes in handling, durability, and fuel
economy. Successful, safe trailering
takes correct equipment, and it has to
be used properly.
That’s the reason for this section. In it
are many time-tested, important
trailering tips and safety rules. Many of these
are important
for your safety and
that of your passengers.
So please read
this section carefully before you pull a
trailer. Load-pulling components such
as the engine, transaxle, wheel
assemblies, and tires are forced to work
harder against the drag of the added
weight. The engine is required to
operate at relatively higher speeds and
under greater loads, generating extra
heat. What’s more, the trailer adds
considerably to wind resistance,
increasing the pulling requirements.
All of that means changes in:
Handling
Durability
Fuel economy
If You Do Decide to Pull a Trailer
If you do, here are some important
points.
There are many different laws having
to do with trailering. Make
sure your
rig will be legal, not
only where you
live but also where you’ll be driving. A
good source for this information can
be state or provincial police.
Consider using a sway control. You
can ask a hitch dealer about sway
control.
Don’t tow a trailer at all during the
first
500 miles (800 km) your new
vehicle is driven. Your engine, axle or
other parts could be damaged.
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Will the trailer brake parts take 3,000
psi (20 650 1tPa) of pressure? If not,
the trailer brake system must not be
used with your vehicle.
If everything checks out this far, then
make the brake fluid tap at the upper
rear master cylinder port. But don’t
use copper tubing for this. If you do,
it will bend and finally break
off. Use
steel brake tubing.
Driving with a Trailer
Towing a trailer requires a certain
amount of experience. Before setting
out for the open road, you’ll want to get
to know your rig. Acquaint yourself
with the feel of handling and braking
with the added weight of the trailer.
And always keep in mind that the
vehicle you are driving is now a good
deal longer and not nearly
so responsive
as your vehicle is by itself.
Before you start, check the trailer hitch
and platform, safety chains, electrical
connector, lights, tires and mirror
adjustment. If the trailer has electric
brakes, start your vehicle and trailer
moving and then apply the trailer brake
controller by hand to be sure the brakes
are working. This lets
you check your
electrical connection at the same time.
During your trip, check occasionally to
be sure that the load is secure, and that
the lights and any trailer brakes are still
working.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving your vehicle without
a trailer.
This can help you avoid situations that
require heavy braking and sudden
turns.
Passing
You’ll need more passing distance up
ahead when you’re towing a trailer.
And, because you’re a
good deal longer,
you’ll need to
go much farther beyond
the passed vehicle before you can return
to your lane.
Backing Up
Hold the bottom of the steering wheel
with one hand. Then, to move
the
trailer to the left, just move that hand to
the left.
To move the trailer to the right,
move your hand to the right. Always
back up slowly and, if possible, have
someone guide you.
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Your Driving and the Road
Driving with a Trailer (CONT.)
Making Turns
When you’re turning with a trailer,
make wider turns than normal. Do this
so your trailer won’t strike soft
sh’oulders, curbs, road signs, trees, or
other objects. Avoid jerky or sudden
maneuvers. Signal well in advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle has
to have a different turn signal flasher
and extra wiring. The green arrows on
your instrument panel will flash
whenever you signal
a turn or lane
change. Properly hooked
up, the trailer
lights will also flash, telling other
drivers you’re about to turn, change
lanes or stop.
When towing a trailer, the green arrows
on your instrument panel will flash for
turns even if the bulbs on the trailer are
burned out. Thus, you may think
drivers behind you are seeing your
signal when they are not.
It’s important
to check occasionally
to be sure the
trailer bulbs are still working.
Your vehicle has bulb warning lights.
When you plug trailer lights into your
vehicle’s lighting system, its bulb
warning lights may not let you know if
one of your lights goes out.
So, when
you have trailer lights plugged in, be
sure
to check your vehicle and trailer
lights
from time to time to be sure
they’re all working. Once
you
disconnect the trailer lights, the bulb
warning lights again can tell you if one
of your vehicle lights is out.
Driving On Grades
Reduce speed and shift to a lower gear
before you start down a long or steep
downgrade.
If you don’t shift down, you
might have to use your brakes so much
that they would get hot and
no longer
work well.
On a long uphill grade, shift down and
reduce your speed to around
45 mph
(70 kwh) to reduce the possibility of
engine and transaxle overheating.
If you are towing a trailer and you have
an automatic transaxle with Overdrive,
it’s best to drive in
D instead of (or
as you need to, a lower gear). This will
minimize heat build-up and extend the
life of your transaxle.
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Parking on Hills
You really should not park your vehicle,
with a trailer attached, on a hill.
If
something goes wrong, your rig could
start to move. People can be injured,
and both your vehicle and the trailer
can be damaged.
But if you ever have to park your rig on
a hill, here’s how to do it:
1. Apply your regular brakes, but don’t
shift into
P (Park) yet.
2. Have someone place chocks under
the trailer wheels.
3. When the wheel chocks are in place,
release the regular brakes until the
chocks absorb the load.
4. Reapply the regular brakes. Then
apply your parking brake, and then
shift to
P (Park).
5. Release the regular brakes.
When You Are Ready to Leave After
Parking
on a Hill
1. Apply your regular brakes and hold
the pedal down while you:
Start your engine;
Shift into a gear; and
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear
4. Stop and have someone pick up and
of
the chocks.
store the choclts.
Maintenance When Trailer Towing
Your vehicle will need service more
often when you’re pulling a trailer. See
the Maintenance Schedule for more on
this. Things that are especially
important in trailer operation
are
automatic transaxle fluid (don’t
overfill), engine oil, belts, cooling
system, and brake adjustment. Each
of
these is covered in this manual, and the
Index will help you find them quickly. If
you’re trailering, it’s a good idea to
review these sections before you start
your trip.
Check periodically to see that all hitch
nuts and bolts are tight.
IBI ...
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Here you’ll find what to do about
some problems that can occur on the
road
.
Part 5
Problems on the Road
Hazard Warning Flashers ........................................................................\
........ 184
Towing Your Pontiac ........................................................................\
............... 189
Engine Overheating ........................................................................\
................. 193
If a Tire Goes Flat ........................................................................\
.................... 200
Changing a Flat Tire ........................................................................\
................ 200
Compact Spare Tire ........................................................................\
................. 207
If You’re Stuck: In Sand, Mud. Ice or Snow .................................................. 208
Jump Starting ........................................................................\
........................... 185
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A
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X51 01
Towing Your Pontiac
Try to have a GM dealer or a
professional towing service tow your
Pontiac. The usual towing equipment is:
(A) Sling-type tow truck
(B) Wheel-lift tow truck
(C) Car carrier
If your vehicle has been changed or
modified since it was factory-new by
adding aftermarket items like fog lamps,
aero skirting, or special tires and
wheels, these instructions and
illustrations may not be correct.
Before you do anything, turn on the
hazard warning flashers. When you call, tell
the towing service:
That your vehicle cannot be towed
from the front or rear with sling-type
equipment.
drive.
vehicle.
lever.
damaged.
That your vehicle has front-wheel
The make, model, and year of your
Whether you can still move the shift
If there was an accident, what was
When the towing service arrives, let the
tow operator know that this manual
contains detailed towing instructions
and illustrations. The operator may
want to see them.
To help avoid injury to you
or others:
* Never let passengers ride in a
vehicle that is being towed.
Never tow faster thar -3fe
posted speeds.
Never tow with damaged part
not fully secured.
Never get under your vehicle after
it
has been lifted by the tow
truck.
Always use separate safety chains
hooks instead. '
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Problems on the Road
Towing Your P onfiac (c0N;T.j
When your vehicle is being towed!, have
the ignition key
off. The steering wheel
should be clamped
in a straight-ahead
position, with a clamping device
designed for
towing service. Do not use
the vehicle's steering
column lock for
this. The transaxle should be in
N [Neutral) and the parking brake
re1,eased.
Don't have your vehicle towed
on the
front wheels, unless
you must. If the
vehicle must be towed
on the front
wheels, don't go more than 35 mph
(56 km/h) or farther than 50 miles
(80 km) or your transaxle will be
damaged. If these limits must be
exceeded, then the front wheels have to
be supported on a dolly.
II
CAUTION
* A vehicle can fall from a car
scb,red. This can cause a collision,
serious personal injury and vehicle
damage. The vehicle should be
tightly secured with chains or steel
cables before it is transported.
Don't use substitutes (ropes,
leather straps, canvas webbing,
etc.) that can be cut
by sharp e('- :s
underneath the tou hicle .
I b carrier if it isn't properly
Towing from the Front-
Vehicle
Hook-up
Before hooking up to a tow truck, be
sure to read all the information on
Towing Your Pontiac earlier in this
section.
1. Attach T-hook chains into the side
slots in the cradle in front of the
wheels, on both sides.
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Problems on the Road
1
Towing from the Rear-
Vehicle Hook-up
Before hoolring up to a tow truck, be
sure to read all the information on
Towing Your Polttiac earlier in this
section.
I. ;Qttach T-hook chains on both sides
in the slotted holes in the bottom
of
the floor pan support rails just ahead
of the rear wheels,
X5082
Do not tow with sling-type
equipment or the rear bumper
valance will be damaged. Use
wheel-lift or car carrier equipment.
Additional ramping may be
required for car carrier equipment.
Use safety chains and wheel strans. I
I
Install a towing dolly beneath the
wheels that would be on the ground
during the tow. This will increase
clearance between the wheel-lift
equipment and the underbody of
the towed vehicle. This will help to
avoid damaging a vehicle during a
tow over rough surfaces.
'I
A W6024
2. Attach a separate safety chain around
the outboard end of each lower
control arm.
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