1996 CHEVROLET BLAZER ECU

Downloaded from www.Manualslib.com manuals search engine Before You Go Off-Roading
There are some things to do before you go out. For
example, be sure
to have all necessary maintenance and
service work done. Check to make sure all underbody
shields (if
so equipped) are properly attached. Be sure
you read
all the information about your four-wheel-drive
vehicle
in this manual. Is there enough fuel? Is the spare
tire
fully inflated? Are the fluid levels up where they
should be? What are the local laws that apply to
off-roading where you’ll be driving? If you don’t know,
you should check with law enforcement people
in the
area. Will you be
on someone’s private land? If so, be
sure to get the necessary permission.
Loading Your Vehicle for Off-Road Driving
There are some important things to remember about
how to load your vehicle.
0 The heaviest things should be on the load floor and
forward of your rear axle. Put heavier items as far
forward as you can.
Be sure the load is secured properly, so driving on
the off-road terrain doesn’t toss things around.
A CAUTION:
0 Cargo on the load floor piled higher than
the seatbacks can be thrown forward
during a sudden stop. You or your
passengers could be injured. Keep cargo
below the top of the seatbacks.
Unsecured cargo on the load floor can
be tossed about when driving over rough
terrain. You or your passengers can
be struck by flying objects. Secure the
cargo properly,
Heavy loads on the roof raise the vehicle’s
center of gravity, making it more likely to
roll over. You can be seriously
or fatally
injured if the vehicle rolls over, Put heavy
loads inside the cargo area, not on the roof,
Keep cargo in the cargo area as far forward
and low as possible.
You’ll find other important information in
this manual.
See “Vehicle Loading,” “Luggage Carrier” and “Tires”
in the Index.
I
4-15

Downloaded from www.Manualslib.com manuals search engine Include an ice scraper, a small brush or broom, a supply
of windshield washer fluid, a rag, some winter outer
clothing, a
small shovel, a flashlight, a red cloth and a
couple
of reflective warning triangles. And, if you will
be driving under severe conditions, include a small bag
of sand,
a piece of old carpet or a couple of burlap bags
to help provide traction. Be sure
you properly secure
these items in your vehicle.
Driving on Snow or Ice
Most of the time, those places where your tires meet the
road probably have good traction.
However, if there is snow or ice between your tires and the
road,
you can have a very slippery situation. You’ll have a
lot less traction or “grip” and will need to be very careful.
What’s the worst
time for this? “Wet ice.” Very cold
snow or ice can be slick and hard to drive on. But wet
ice can be even more trouble because
it may offer the
least traction of all. You can get wet ice when it’s about
freezing
(32°F; OOC) and freezing rain begins to fall.
Try
to avoid driving on wet ice until salt and sand crews
can get there.
4-40

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
= 1
Do not load your vehicle any heavier than the
GVWR, or either the maximum front or rear
GAWR.
If you do, parts on your vehicle can break,
or it can change the
way your vehicle handles.
These could cause you to lose control.
Also,
overloading can shorten the life of your vehicle.
Using heavier suspension components to get added
durability might not change your weight ratings. Ask
your dealer to help you load your vehicle the right way.
NOTICE:
Your warranty does not cover parts or
components that fail because of overloading.
~~
If you put things inside your vehicle -- like suitcases,
tools, packages, or anything else -- they will go as fast
as the vehicle goes. If you have to stop or turn quickly,
or if there
is a crash, they’ll keep going.
A CAUTION: ..,
Things you put inside your vehicle can strike
and injure people in
a sudden stop or turn, or
in a crash.
Put things in the cargo area of your vehicle.
0 Never stack heavier things, like suitcases,
Try to spread the weight evenly.
inside the vehicle
so that some of them are
above the tops
of the seats.
0 Don’t leave an unsecured child restraint in
your vehicle.
0 When you carry something inside the
vehicle, secure it whenever you can.
0 Don’t leave a seat folded down unless you
need to.
There’s also important loading information for off-road
driving
in this manual. See “Loading Your Vehicle” in
the Index.
4-45

Downloaded from www.Manualslib.com manuals search engine 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 as
responsive as your
vehicle is by itself.
Before
you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, 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 lamps 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.
4-52

Downloaded from www.Manualslib.com manuals search engine 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 transmission fluid (don’t
overfill), engine oil, axle lubricant, belt, 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.
Trailer Wiring Harness
The light duty trailer wiring is a six-wire harness
assembly. The heavy duty trailer wiring is an eight-wire
harness assembly. The harnesses are stored under
the
vehicle, along the passenger-side frame crossmember on
two-door vehicles or on the driver’s side corner frame
crossmember
on four-door vehicles. The heavy duty
trailer wiring has a 30-amp feed wire with an inline fuse
located by the junction block. See “Fuses and Circuit
Breakers” in
the Index. Both harnesses have no
connector and should be wired
by a qualified electrical technician. The technician can
use the following color code chart when connecting the
wiring harness
to your trailer.
0
0
0
0
0
0
0
0
DARK BLUE: Use for electric trailer brakes or
auxiliary wiring.
RED: Use for battery charging; it connects to the
starter solenoid (eight-wire harness
only).
LIGHT GREEN: Back-up lamps (eight-wire
harness only).
BROWN: Taillamps and parking lamps.
YELLOW Left stoplamp and turn signal.
DARK GREEN: Right stoplamp and turn signal.
WHITE (Heavy Gage): Ground wire.
WHITE (Light Gage): Auxiliary stoplamp.
Securely attach the harness
to the trailer, then tape or
strap it to your vehicle’s frame rail. Be sure you leave
it loose enough
so the wiring doesn’t bend or break,
but
not so loose that it drags on the ground. Store the
harness in its original place. Wrap the harness together
and
tie it neatly so it won’t be damaged.
4-56

Downloaded from www.Manualslib.com manuals search engine Towing Your Vehicle
Try to have a GM dealer or a professional towing
service tow your vehicle. See “Roadside Assistance” in
the Index.
If your vehicle has been changed since it was
factory-new by adding things like fog lamps, aero
skirting, or special tires and wheels, these instructions
may not be correct.
,Before you do anything, turn on the hazard
warning flashers.
When
you call, tell the towing service:
Whether your vehicle has rear-wheel drive,
The make, model and year of your vehicle.
Whether you can move the shift lever for the
four-wheel drive
or all-wheel drive.
transmission and shift the transfer case,
if you
have one.
If there was an accident, what was damaged.
When the towing service arrives, let the tow operator
know that this manual contains these towing instructions. The operator may want to see them.
I A CAUTION:
-
To help avoid injury to you or others:
0 Never let passengers ride in a vehicle that is
0 Never tow faster than safe or posted speeds.
0 Never tow with damaged parts not fully secured.
0 Never get under your vehicle after it has
0 Always use separate safety chains on each
0 Never use J-hooks. Use T-hooks instead.
being
towed.
been lifted by the tow truck.
side when towing a vehicle.
5-7

Downloaded from www.Manualslib.com manuals search engine A vehicle can fall from a car carrier if it isn't
adequately secured. 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
edges underneath the towed vehicle. Always use
T-hooks inserted in the T-hook slots. Never use
J-hooks. They will damage drivetrain and
suspension components. When your vehicle
is being towed, have the ignition
key turned to the
OFF position. 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
transmission should be in
NEUTRAL (N) and the
transfer case, if you have one, should be
in 2HI. The
parking brake should be released.
Don't have
your vehicle towed on the drive wheels
unless
you must. If the vehicle must be towed on the
drive wheels, be sure to follow the speed and distance
restrictions later
in this section or your transmission will
be damaged.
If these limitations must be exceeded, then
the drive wheels have to be supported on a dolly.
5-8

Downloaded from www.Manualslib.com manuals search engine Storing a Flat or Spare Tire -..ne Tn4s
Storing a jack, a tire or other equipment in the
passenger compartment
of the vehicle could
cause injury. In a sudden
stop or collision, loose
equipment could strike someone. Store all these in the proper place.
Follow this diagram to store the
underbody-mounted spare.
cTD B
A. Retainer
B. Valve Stem
(Pointed Down)
C. Spare Tire
D. Spring
E. Wheel Wrench
E Lower
G. Raise
H. Hoist Arm
1. Put the tire on the ground at the rear of the vehicle,
with the valve stem pointed down and
to the rear.
2. Pull the retainer through the wheel.
3. Put the chisel end of the wheel wrench, on an angle,
through the hole
in the rear bumper and into the hoist
shaft. Turn the wheel wrench clockwise until the tire
is raised against
the underside of the vehicle.
You will hear two “clicks” when the tire is secure,
but
pull on the tire to make sure.
5-30