check engine CHEVROLET TAHOE 1996 1.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine I Long Trip/Highway Maintenance Schedult; ~~ -- Gasoline Engines
60,000 Miles (100 000 km) (Continued)
0 Inspect-fuel tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for any
damage. Replace parts as needed.
An Emission Control Service.
Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace
as required. This is a Noise Emission
Control Service. Applicable
only to vehicles sold in
the United States.
0 If your engine has a thermostatically
controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve works properly.
This is a Noise
Emission Control Service. Applicable
only to
vehicles
sold in the United States.
0 Conduct Exhaust Gas Recirculation (EGR)
system inspection as described in the
service manual.
An Emission Control Service.
inspection. Check all fuel and vapor lines
and hoses for proper hook-up, routing and
condition. Check that the purge valve works
properly, if equipped. Replace as needed.
An. Emission Control Service. T
0 Conduct evaporative control system
FF=m
ACTUAL MILEAGE SERVICED BY
7-36
i

Downloaded from www.Manualslib.com manuals search engine 67,500 Miles (112 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking.
**
Rotate tires. See “Tire Inspection and Rotation’’
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for freedom of movement.
Refer to the appropriate
GM service manual for
proper caliper service procedures.
DATE SERVICED BY ACTUAL MILEAGE
75,000 Miles (125 000 km)
Change engine oil and filter (or every
12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see footnote ##
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
**
0 Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace as required.
This is a Noise Emission
Control Service. Applicable only
to vehicles sold in
the United States.
1
(Continued)
7-37

Downloaded from www.Manualslib.com manuals search engine I Long Tripmighway Maintenance Schedule -- Gasoline Engines I
75,000 Miles (125 000 km) (Continued)
0 If your engine has a thermostatically
controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve works properly.
This is a Noise
Emission Control Service. Applicable only to
vehicles sold in the United States.
82,500 Miles (137 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking.
**
0 Rotate tires. See “Tire Inspection and Rotation”
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for freedom of movement. Refer to
the appropriate GM service manual for
Drooer caliDer service procedures.
DATE ACTUAL MILEAGE SERVICED BY:
7-38
DATE ACTUAL MILEAGE
SERVICED BY

Downloaded from www.Manualslib.com manuals search engine 90,000 Miles (150 000 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
**
0 For Two-Wheel-Drive vehicles only: Clean
and repack the front wheel bearings (or at
each brake relining, whichever occurs first).
0 Replace fuel filter. An Emission Control Service.
0 Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace
as required. This is a Noise Emission
Control Service. Applicable only to vehicles
sold in
the United States.
If your engine has a thermostatically
.controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve works properly. This is a Noise
Emission Control Service. Applicable only
to
vehicles sold in the United States.
DATE
SERVICED BY: ACTUAL MILEAGE
7-39

Downloaded from www.Manualslib.com manuals search engine Long Tripmighway Maintenance Schedule -- Gasoline Engines
97,500 Miles (162 500 km).
Cl&ge engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and axle seals for leaking.
**
0 Rotate tires. See “Tire Inspection and Rotation’’
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for freedom of movement.
Refer to the appropriate
GM service manual for
100,000 Miles (1 66 000 km)
Cl Drain., flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant”
in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test the
cooling system and pressure cap.
An Emission Control Service.
0 Inspect spark plug wires.
An Emission Control Service.
proper caliper service procedures.
DATE
SERVICED BY: ACTUAL MILEAGE.
‘7-40

Downloaded from www.Manualslib.com manuals search engine Part B: Owner Checks and Services
Listed below are owner checks and services which
should be performed at the intervals specified to help
ensure the safety, dependability and emission control
performance
of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids
or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part
D.
At Each Fuel Fill
It is important for you or a service station attendant to
pe$orm these underhood checks at each fuel
fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. See “Engine
Oil” in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add the proper
coolant
mix if necessary. See “Engine Coolant” in the
Index for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the
windshield washer tank and add the proper fluid if
necessary. See “Windshield Washer Fluid” in
the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
See “Tires” in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See “Audio Systems” in the
Index for further details.
7-42

Downloaded from www.Manualslib.com manuals search engine At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly. Look for any other loose or damaged
safety belt system parts.
If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag covers, and
have them repaired or replaced. (The air bag system
does
not need regular maintenance.)
Air Cleaner Filter Restriction Indicator Check
Your vehicle has an indicator on the engine that lets you
know when the air cleaner filter is dirty and needs to be
changed. Check indicator at least twice a year or when
your oil is changed. See “Air Cleaner” in the Index for
more information.
Automatic Transmission Check
Check the transmission fluid level; add if needed. See
“Automatic Transmission”
in the Index. A fluid loss
may indicate a problem. Check the system and repair
if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part
D.
Body Lubrication Service
Lubricate all fuel door, body hood and body door
hinges, rear compartment hinges, tailgate handle pivot
points, latches, locks and folding seat hardware. Part
D
tells you what to use. More frequent lubrication may be
required when exposed to a corrosive environment.
Starter Switch Check
CAUTION:
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
7-43

Downloaded from www.Manualslib.com manuals search engine 1.
2.
3.
Before you start, be sure you have enough room
around
the vehicle.
Firmly apply both the parking brake (see “Parking
Brake” in the Index if necessary) and the regular
brake.
NOTE.
Do not use the accelerator pedal, and be
ready to turn off the engine immediately
if it starts.
Try to start
the engine in each gear. The starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, your
vehicle needs service.
Brake-Transmission Shift Interlock (BTSI) Check
I
’ A CAUTION:
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
1.
2.
3.
Before you start, be sure you have enough
room around the vehicle. It should be parked on
a level surface.
Firmly apply the parking brake (see “Parking Brake”
in the Index if necessary).
NOTE: Be ready
to apply the regular brake
immediately if the vehicle begins to move.
With the engine
off, turn the key to the RUN position,
but don’t
start the engine. Without applying the regular
brake,
try to move the’ shift lever out of PARK (P) with
normal effort.
If the shift lever moves out of
PARK (P), your vehicle’s BTSI needs service.
7-44

Downloaded from www.Manualslib.com manuals search engine Steering Column Lock Check
While parked, and with the parking brake set, try to turn
the key to LOCK
in each shift lever position.
The key should turn to LOCK only when the shift
The key should come out only in LOCK.
lever
is in PARK (P).
Parking Brake and Automatic Transmission
PARK (P) Mechanism Check
- -
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front
of your vehicle in case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
'To check the parking brake: With the engine running
and transmission in NEUTRAL
(N), slowly remove ,
foot pressure from the regular brake pedal. Do this
until the vehicle is held by the parking brake only.
To check the PARK (P) mechanism's holding ability:
With the engine running, shift to PARK (P). Then
release all brakes.
7-45

Downloaded from www.Manualslib.com manuals search engine Drive Axle Service
Check readfront axle fluid level and add as needed.
Check constant velocity joints and axle seals for leaking.
Transfer Case (Four-wheel Drive)
Inspection
Every 12 months or at oil change intervals, check front
axle and transfer case and add lubricant when necessary.
Oil the control lever pivot point and all exposed control
linkage. Check vent hose at transfer case for
kinks and
proper installation. More frequent lubrication may be
required on off-road use.
Brake System Inspection
Inspect the complete ,system. Inspect brake.lines and
hoses for proper hook-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum'brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel.cylinders, calipers, parlung brake, etc.
Check parking brake adjustment.
You may need to have
your brakes inspected more often
if your driving habits
or conditions result in frequent braking.
7-47