1997 CHEVROLET TAHOE transmission

Downloaded from www.Manualslib.com manuals search engine If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
I NOTICE:
Too much or too little fluid can damage your
transmission.
Too much can mean that some of
the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be
~ sure to get an accurate reading if you check your
~ transmission fluid.
Wait at least 30 minutes before checking the
transmission fluid level if you have been driving:
0 When outside temperatures are above 90°F (32" C).
0 At high speed for quite a while.
0 In heavy traffic -- especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which is
180°F to 200°F
(82°C to 93°C).
Checking Transmission Fluid Hot
Get the vehicle warmed up by driving about 15 miles
(24 km) when outside temperatures are above 50°F
(10°C). If it's colder than 50°F (lO"C), drive the
vehicle in THIRD (3) until the engine temperature gage
moves and then remains steady for
10 minutes. Then
follow the hot check procedures.
Checking Transmission Fluid Cold
A cold check is made after the vehicle has been sitting
for eight hours or more with the engine off and is used
only as a reference. Let the engine run at idle for five
minutes if outside temperatures are
50°F (10°C) or
more. If it's colder than
50°F (lO"C), you may have
to idle the engine longer. Should the fluid level be low
during a cold check, you
must perform a hot check
before adding fluid. This will give you a more accurate
reading of the fluid level.
6-21

Downloaded from www.Manualslib.com manuals search engine Checking the Fluid Hot or Cold
Park your vehicle on a level place. Keep the
engine running.
With the parking brake applied, place the shift lever
in PARK
(P).
With your foot on the brake pedal, move the shift
lever through each gear range, pausing for about
three seconds in each range. Then, position the shift
lever in PARK (P). Then, without shutting
off the engine, follow these steps:
Let the engine run at idle for three minutes or more.
1. The red transmission dipstick is located at the rear of
the engine compartment, on the passenger’s side.
Flip the handle up and then pull out the dipstick and
wipe it with a clean rag or paper towel.
2. Push it back in all the way, wait three seconds and
then pull
it back out again.

Downloaded from www.Manualslib.com manuals search engine 3. Check both sides of the dipstick, and read the lower
level. The fluid level must be in the COLD area for a
cold check or in the
HOT area or cross-hatched area
for a hot check.
4. If the fluid level is in the acceptable range, push the
dipstick back in all the way; then flip the handle
down to lock the dipstick in place.
How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind
of transmission fluid to use. See “Recommended
Fluids and Lubricants” in the Index. Add
fluid only after checking the transmission fluid
HOT. (A COLD check is used only as a reference.) If the
fluid level is low, add only enough of the proper fluid to
bring the level up to the HOT area for
a hot check. It
doesn’t take much fluid, generally less
than one pint
(0.5 L). Don’t ove$ll.
NOTICE:
We recommend you use only fluid labeled
DEXRON@-111, because fluid with that label is
made especially for your automatic transmission.
Damage caused by fluid other than DEXRON-I11
is not covered by your new vehicle warranty.
After adding fluid, recheck the fluid level as
When the correct fluid level is obtained, push the
described under “How
to Check.”
dipstick back in all the way; then flip the handle
down to lock the dipstick in place.
6-23

Downloaded from www.Manualslib.com manuals search engine 15
16
Fuse/Circuit Breaker Usage
14 4WD Indicator, Cluster, Front and
Rear Comfort Controls, Instrument
Switches, Radio Illumination,
Chime Module
DRL Relay, Fog Lamp Relay
17
18
19
20
21
22
23
24
A
B Front and Rear Turn Signals,
Back-up
Lamps, BTSI Solenoid
Radio (Ignition)
4WALNCM, ABS, Cruise Control
Radio (Battery)
PRNDL, Automatic Transmission, Speedometer, Check Gages,
Warning Lights
Variable Effort Steering
Not Used
Rear Wiper, Rear Washer Pump
Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
Power Door Lock, Six-Way Power
Seat, Keyless Entry Module
Power Windows
Underhood Fuse/Relay Center
The underhood fusehelay center is located in the rear of
the engine compartment near the brake fluid reservoir.
Move the retainer clips for the cover to access the
fuse block.
You can remove fuses with a fuse extractor. The fuse
extractor is mounted to the interior fuse block. To
remove fuses if you don't have a fuse extractor, hold the
end of the fuse between your thumb and index finger
and pull straight out.
6-65

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
Short Trip/City Definition -- Gasoline Engines .
Follow the Short Trip/City 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.
driving in stop-and-go traffic).
frequently. your vehicle.
or other commercial application.
Most trips include extensive idling (such as frequent
You operate your vehicle in dusty areas or off-road
0 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 soonez
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).
Short Trip/City Intervals -- Gasoline Engines
Every 6,000 Miles
(10 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and Underhood
Insulation Inspection
(GVWR above 8,500 lbs. only).
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): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation
(PCV) Valve Inspection.
Service (or every 60 months, whichever occurs first).
Every 150,000 Miles (240 000 km): Cooling System
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 Maintenance Schedule
I Long Trip/Highway Definition -- Gacoline Engines
Follow this maintenance schedule only if none of the
conditions from the Short Trip/City Maintenance
Schedule is true. Do not use this schedule if the vehicle
is used for trailer towing, driven in a dusty area or used
off paved roads. Use the Short Trip/City schedule for
these conditions.
Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break
down slowel:
1 Long TripMighway Intervals -- Gasoline Engines I
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, whichever
occurs first). Drive Axle Service. Tire Rotation.
Underhood Insulation Inspection (GVWR above
8,500 lbs. only).
Every 15,000 Miles (25 000 km): Shields and
Long TripMighway Intervals -- Gasoline Engines
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): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to
follow the complete maintenance schedule
on the following pages.
7-6

Downloaded from www.Manualslib.com manuals search engine Short Trip/City Maintenance Schedule -- Gasoline Engines I
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. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240
000 km).
See “Owner Checks and Services’’ and “Periodic
Maintenance Inspections” following.
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.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspection” in Part
C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants” in the Index for proper lubricant to use):
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 -- Check 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).
heavy-duty or off-road use.
More frequent lubrication may be required for

Downloaded from www.Manualslib.com manuals search engine Short TripKity Maintenance Schedule -- Gasoline Engines
48,000 Miles (80 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every
3 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and
axle seals for leaking. (See footnote
**.)
0 Rotate tires. See “Tire Inspection and
Rotation’’ in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
DATE SERVICED BY ACTUAL MILEAGE
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 OF
(32°C) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of these
conditions, the fluid andfilter
do not require changing.
DATE
SERVICED BY ACTUAL MILEAGE
7-17