1996 CHEVROLET S10 ECU

Downloaded from www.Manualslib.com manuals search engine Trailer Brakes
If your trailer weighs more than 1,000 lbs. (450 kg)
loaded, then it needs its own brakes
-- and they must be
adequate. Be sure to read and follow
the instructions for
the trailer brakes
so you’ll be able to install, adjust and
maintain them properly.
Your trailer’s brake system can tap into the vehicle’s
hydraulic brake system only if
a
a
The trailer parts can withstand 3,000 psi
(20 650 kPa) of pressure.
The trailer’s brake system will use less than
0.02 cubic inch (0.3 cc) of fluid from your vehicle’s
master cylinder. Otherwise, both braking systems
won’t work well. You could even lose your brakes.
If everything checks
out this far, then make the brake
fluid tap at the port on the master cylinder that sends
fluid
to the rear brakes. 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
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.

Downloaded from www.Manualslib.com manuals search engine 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;
0 Shift into a gear; and
0 Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
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 eight-wire harness is stored under your vehicle
along
the rear frame crossmember. This harness has a
30-amp feed wire with an inline fuse located in the
instrument panel fuse block and no connector. It 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 DARK BLUE: Use for electric trailer brakes or
0 RED: Use for battery charging; it connects to the
LIGHT GREEN: Back-up lamps.
0 BROWN: Taillamps and parking lamps.
0 YELLOW Left stoplamp and turn signal.
0 DARK GREEN: Right stoplamp and turn signal.
0 WHITE (Heavy Gage): Ground wire.
0 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.
auxiliary wiring.
starter solenoid.
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:
0 Whether your vehicle has rear-wheel drive,
four-wheel drive or all-wheel drive.
The make, model and year of your vehicle.
Whether you can move the shift lever for the
transmission and shift the transfer case, if you
have one.
0 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.
To help avoid injury to you or others:
Never let passengers ride in a vehicle that is
being towed.
Never tow faster than safe or posted speeds.
Never tow with damaged parts not
fully secured. Never get under your vehicle after it has
been lifted by the tow truck.
Always use separate safety chains on each
side when towing
a vehicle.
Never use J-hooks. Use
T-hooks instead.
5-7

Downloaded from www.Manualslib.com manuals search engine mm
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 and Tools
-- I
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.
I
I NOTICE:
Don’t use the existing hoist to store a tire with an
aluminum wheel or it could damage the wheel.
Secure the tire in the pickup bed. Follow
this diagram
to store a tire that doesn’t have an
aluminum wheel.
A. Wheel Wrench
B. Hoist Assembly
C. Retainer
D. Spring
E. Tire
E Valve Stem
(Pointed
Down)
G. Lower
H. Raise
5-30

Downloaded from www.Manualslib.com manuals search engine 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.
Note that with the ZR2 option, the spring and
retainer must be separated
to insert through the
wheel opening.
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. Return
the jack, wheel wrench and wheel blocks to the
proper location behind the seat. Secure the items.
A. Wheel Wrench E. Bolt Location (ZR2)
B. Bracket
C. Jacking Instructions
(Roll and place tag
behind the bracket after the tools are
installed.)
D. Bolt Location (Standard)
E Wheel Blocks
G. Nut
H. Rubber Band
I. Jack Position (ZR2)
J. Jack Position
(Standard)
5-31

Downloaded from www.Manualslib.com manuals search engine 2.2L Engine
To remove this air cleaner, open both clamps and push
the rear of the air cleaner toward the rear of the engine
compartment.
Insert a new air filter. Then replace the air cleaner
assembly, making certain the
PCV air tube is properly
seated in the left hand valve cover and the clamps are
securely fastened.
Refer
to the Maintenance Schedule to determine when to
replace the air filter.
A CAUTION:
F
Operating the engine with the air cleaner off can
cause you or others to be burned. The air cleaner
not only cleans the
air, it stops flame if the engine
backfires.
If it isn’t there, and the engine backfires,
you could be burned. Don’t drive with
it off, and
be careful working on the engine with the air
cleaner
off.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it.
Always
have the air cleaner in place when you’re driving.
See “Scheduled Maintenance Services” in the Index.
6-15

Downloaded from www.Manualslib.com manuals search engine Tire Chains
NOTICE:
If your vehicle has P235/75R15, P23970R15,
P235/55R16 or 3lxlO.5OR15LT/C size tires, don’t
use tire chains. They can damage your vehicle.
If you have other size tires, use tire chains only
where legal and only when you must. Use only
SAE Class “S” type chains that are the proper
size for your tires. Install them on the drive axle
tires (four-wheel-drive vehicles can use chains on
both axles) and tighten them as tightly as possible
with the ends securely fastened. Drive slowly and
follow the chain manufacturer’s instructions.
If
you can hear the chains contacting your vehicle,
stop and retighten them.
If the contact continues,
slow down until it stops. Driving too fast or
spinning the wheels with chains on will damage
your vehicle.
Appearance Care
Remember, cleaning products can be hazardous. Some
are toxic. Others can burst into flame if you strike a
match or get them
on a hot part of the vehicle. Some are
dangerous if you breathe their fumes in a closed space.
When
you use anything from a container to clean your
vehicle, be sure to follow the manufacturer’s warnings
and instructions. And always open your doors or
windows when you’re cleaning the inside.
Never use these to clean your vehicle:
0 Gasoline
0 Benzene
0 Naphtha
0 Carbon Tetrachloride
0 Acetone
0 Paint Thinner
0 Turpentine
0 Lacquer Thinner
0 Nail Polish Remover
They can all be hazardous
-- some more than
others
-- and they can all damage your vehicle, too.
I
‘ 6-52