transmission oil CHEVROLET TAHOE 1996 1.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine If You Do Decide To Pull A Trailer
If you do, here are some important points:
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There are many different laws, including speed limit
restrictions, 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 if your trailer will
weigh
4,000 lbs. (1 800 kg) or. less. You should
always use a sway control if your trailer will weigh
more than
4,000 lbs. (1 800 kg). You can ask a hitch
dealer about sway controls.
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.
Then, during the first
500 miles (800 km) that you
tow a trailer, don’t drive over
50 mph (80 kmk) and
don’t make starts at full throttle. This helps your
engine and other parts of your vehicle wear in at the
heavier loads.
If you have an automatic transmission, you can tow
in OVERDRIVE
(OD). You may want to shift the
transmission to DRIVE (D) or,
if necessary, a lower
gear selection
if the transmission shifts too often
(e.g., under heavy loads and/or hilly conditions). Three important
considerations have to do with weight:
the weight of the trailer,
the weight
of the trailer tongue
and the weight on your vehicle’s tires.
Weight of the Trailer
How heavy can a trailer safely be?
It depends on how you plan to use your rig. For
example, speed, altitude, road grades, outside
temperature and how much your vehicle is used to pull a
trailer are all important. And, it can also depend on any
special equipment that you have
on your vehicle.
Use the following chart to determine how much your
vehicle can weigh, based upon your vehicle model
and options.
Maximum trailer weight is calculated assuming the
driver and one passenger are in the tow vehicle and it
has all the required trailering equipment. The weight of
additional optional equipment, passengers and cargo in
the tow vehicle must be subtracted from the maximum
trailer weight.
Above the 2,000 lbs.
(908 kg) trailer rating, the
engine oil cooler is required on C/K-
1500 models with
5.7L engine and C/K-2500 Suburban models with
5.7L engine and 3.73 axle ratio.
4-45

Downloaded from www.Manualslib.com manuals search engine Making Turns
NOTICE:
Making very sharp turns while trailering could
cause the trailer to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very sharp turns while trailering.
When you’re turning with a trailer, make wider turns than
normal.
Do this so your trailer won’t strike soft shoulders,
curbs, road signs, trees or other objects. Avoid jerky or
sudden maneuvers. Signal well in advance.
nrn Signals When Towing a Trailer
The green arrows on your instrument panel will flash
whenever you signal
a turn or lane change. Properly
hooked up, the trailer lamps 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.
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 km/h) to reduce the
possibility of engine and transmission overheating.
If you have an automatic transmission you should use
THIRD
(3) (or, as you need to, a lower gear) when
towing a trailer. Operating your vehicle in THIRD
(3)
when towing a trailer will minimize heat buildup and
extend the life of your transmission.
When towing at high altitude
on steep uphill grades,
consider the following: Engine coolant will boil at a
lower temperature than at normal altitudes. If you turn
your engine off immediately after towing at high altitude
on steep uphill grades, your vehicle may show signs
similar to engine overheating. To avoid this, let the
engine run while parked (preferably on level ground)
with the automatic transmission in
PARK (P) for a
few minutes before turning the engine off. If you do
get the overheat warning, see “Engine Overheating”
in the Index.
4-51

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:
0 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 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 qoickly.
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
A seven-wire harness is stored under the rear of your
vehicle, between the frame rails. An electrical connector
will need to be added at the trailer end
of the harness, by
a qualified electrical technician. For additional trailer
wiring and towing information, please consult your
dealer. 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 won’t bind or break
when turning with the trailer, but not
so loose that it
drags on the ground. Store’ the harness in its original
position. Wrap the harness together and tie it neatly
so it
won’t be damaged.
If you tow a trailer, your Center
High-Mounted Stoplamp (CHMSL) may not be
properly visible from behind.
You should select a trailer
with a CHMSL on
it or, if one is not available, have one
installed. See your GM dealer about how to connect
your vehicle’s wiring to a trailer CHMSL.
4-53

Downloaded from www.Manualslib.com manuals search engine A. Battery
B. Air Cleaner
C. Radiator Cap
D. Coolant Recovery Tank
E. Air Filter Restriction Indicator
F. Engine Oil Dipstick
G. Automatic Transmission Dipstick
H. Fan
I. Power Steering Fluid Reservoir
J. Engine Oil Fill
. I '.. t .. L $K. , .,J Brake Fluid Reservoir
L. Windshield Washer Fluid Reservoir
M. Fusemelay Center
N. Storage Compartment
6-9

Downloaded from www.Manualslib.com manuals search engine A. Battery
8. Coolant Recovery’Tank
C. Air Cleaner
D. Radiator Cap
E. Air Filter Restriction Indicator
E Engine Oil Dipstick
G. .Automatic Transmission Dipstick
H. Engine Oil Fill
I. Fan
J. Power Steering Fluid Reservoir
K. Brake Fluid Reservoir
L. Storage Compartment
M. Windshield Washer Fluid Reservoir
N. Fuse/Relay Center
.. 6-11

Downloaded from www.Manualslib.com manuals search engine A ,CAUTION:
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.
I
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.
Automatic Transmission Fluid
When to Check and Change
A good time to check your automatic transmission fluid
level
is when the engine oil is changed.
Change both the fluid and filter every
50,000 miles
(83 000 Ism) if the vehicle is mainly driven under one
or,more of these conditions:
0 In heavy city traffic where the outside temperature
regularly reaches
90” F (32 O C) or higher.
0 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
0 Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
See “Scheduled Maintenance Services” in
the Index.
6-18

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
Short Trip/City Definition -- Gasoline Engines
Follow the Short TripKity Maintenance Schedule if any
one of these conditions is true
for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
driying in stop-and-go traffic).
off-road frequently.
your vehicle.
or other, commercial application.
Most trips include extensive idling (such as frequent
You operate your vehicle in dusty areas or
You frequently tow a trailer or use a carrier on top of
0 If the vehicle is used for delivery service, police, taxi
One of the reasons you should follow this schedule if you
operate your vehicle under any
of these conditions is that
these conditions cause engine oil to break down soonel:
Short'Trip/City Intervals -- Gasoline Engines
Every
3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first). Chassis
Lubrication (or
3 months, whichever occurs first). Drive
Axle Service (or
3 months, whichever occurs first).
At 6,000 Miles (10 000 km) -- Then Every
12,000 Miles (20 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only). Thermostatically Controlled Engine
Cooling
Fan Check' (or every 12 months, whichever
occurs first). Front Wheel Bearing Repack
(2WD only)
(or at each brake relining, whichever occurs first).
Every 30,000 Miles (50 000 km): Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark Plug Replacement.
Positive Crankcase Ventilation (PCV) Valve Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on
the following pages.

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
Follow this maintenance schedule only if none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Driving a vehicle with a fully warmed engine
under highway conditions causes engine oil to break
down
s10w.e~
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months,' whichever occurs first).
Chassis Lubrication (or every 12 months, whicheve
occurs first). Drive Axle Service.
At 7,500 Miles (12 500 km) -- Then Every
15,000 Miles (25
000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and
Underhood Insulation Inspection (GVWR above :r
8,500 lbs. only). Thermostatically Controlled
Engine
Cooling Fan Check (or every 12 months, whichever
occurs first).
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement. Front Wheel Bearing Repack (2WD only) (or at each brake relining, whichever
occurs first).
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control ,System Inspection.
Every 100,000 Miles (166 000 km): Cooling System
Service
(or every 60 months, whichever occurs first).
Spark Plug Wire Inspection.
Spark Plug Replacement.
Positive Crankcase Ventilation (PCV) Valve Inspection.
These intervals only summarize maintenance services.
Be sure to
follow the complete maintenance schedule on
the following pages.
7-5

Downloaded from www.Manualslib.com manuals search engine I Short Trip/City Maintenance Schedule -- Gasoline Engines
The services shown in this schedule up to 100,000 miles
( 166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that
the failure to perform this maintenance item will
not
nullify the emission warranty or limit recall liability
prior to the completion
of the vehicle's useful life.
We, however, urge that all recommended
maintenance services
be performed at the indicated
intervals and the maintenance be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage, transmission shift linkage, transfer
case shift linkage, parking brake cable guides, front
axle propshaft splines and brake pedal springs. Ball
joints and kingpin bushings should not be lubricated
unless their temperature
is 10°F (-12"C), or higher,
or they could be damaged.
** Drive axle service:
0 Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
Standard Differential -- Clieck fluid level and add
fluid as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
0 More frequent lubrication may be required for
heavy-duty or off-road use.
7-6

Downloaded from www.Manualslib.com manuals search engine Short TripKity Maintenance Schedule -- Gasoline Engines
48,000 Miles (80 OOOkm)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see footnote ##
(or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
**
50,000 Miles (83 000 km),
0 Change automatic transmission fluid and
filter if the vehicle is mainly driven under
one
or more of these conditions:
- In heavy city traffic where the outside
temperature regularly reaches
90 O F
(32°C) or higher.
- In hilly or mountainous terrain..
- .When doing frequent trailer towing.
- Uses such as found in taxi, police or
If you do not use your vehicle under any of
these conditions, the
fluid and filter do not
require changing.
delivery service.
DATE
SERVICED BY: ACTUAL MILEAGE
7-16 ’