air condition OLDSMOBILE BRAVADA 1998 Owner's Manual

Part A: Scheduled Maintenance
Services
Using Your Maintenance Schedule
We at General Motors want to help you keep your vehicle
in good working condition. But we don‘t know exactly
how you’ll drive
it. You may drive very short distances
only a few times
a week. Or you may drive long distances
all
the time in very hot, dusty weather. You may use your
vehicle
in making deliveries. Or you may drive it to work,
to do en-ands or
in many other ways.
Because of
all the different ways people use their
vehicles, maintenance needs vary. You may even need
more frequent checks and replacements than
you’ll find
in the schedules in this section. So please read this
section and note how you drive.
If you have any
questions on how to keep your vehicle
in good
condition, see your
GM retailer.
This part tells you the maintenance services you should
have done and
when you should schedule them. If you
go to your retailer for your service needs, you’ll know
that GM-trained and supported service people
will
perform the work using genuine GM parts. The proper fluids and lubricants to use are listed
in
Part D. Make sure whoever services your vehicle uses
these.
All parts should be replaced and all necessary
repairs done before you
or anyone else drives the vehicle.
These schedules are for vehicles
that:
0 carry passengers and cargo within recommended
limits. You
will find these limits on your vehicle’s
Certification/Tire label. See “Loading Your Vehicle”
in the Index.
0 are driven on reasonable road surfaces within legal
driving limits.
0 use the recommended fuel. See ”Fuel” in the Index.
Selecting the Right Schedule
First you’ll need to decide which of the two schedules is
right for your vehicle. Here’s how to decide which
schedule to follow:
ProCarManuals.com

Maintenance Schedule
I Short Trip/City Definition
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions is true for your vehicle:
0
0
0
0
0
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
You operate your vehicle in dusty areas or
off-road frequently.
You frequently tow a trailer or use a carrier on top of
your vehicle.
If
the vehicle is used for delivery service, police, taxi
or other commercial application.
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 sooney:
Short Trip/City Intervals
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).
Every 6,000 Miles (10 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving in dusty conditions. Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Every 60,000 Miles (100 000 km): Engine
Accessory Drive Belt Inspection. Fuel Tank, Cap
and Lines Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
7-5
ProCarManuals.com

Maintenance Schedule
I Short TripKity Intervals I
Every 150,000 nliles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
1 Long Tripmighway Definition
Follow this maintenance schedule orll\. if none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Do not use this scl1edule 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.
Long Tripmighway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
I2 months, whichever occurs first).
Chassis Lubrication (or every
12 months, whichever
occurs first). Drive Axle Service. Tire Rotation.
Every 15,000 Miles (25 000 km): Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement.
Air Cleaner Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Every 60,000 Miles (100 000 km): Engine
Accessory Drive Belt Inspection. Fuel Tank, Cap
and Lines 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).
Tlrosc) iuter.\uls o,rl\* .\'lttlllllcrri:o l1lui/1~cn~rnco wr\.ic-e.s.
Br strw to,fi)llon* tho cw11plett-' nlcrintencrm-e schdule on
tl1e~fi~llol-t:iug pcrgc~s.
7-6
ProCarManuals.com

I Short Trip/City Maintenance Schedule 1
I.5,OOO Miles (25 000 km) (Continued)
0 Inspect air cleaner filter if you are driving in dusty conditions. Replace filter if
necessary. An Emissiolz Control Service. (See footnote?.)
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°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
If !?ou cIo rzof LW ~OUP' vehicle under uny of these conditior1s, chrzge tize,flrrid
crnclfilter. ever~? 50,000 miles (83 000 knl).
(32°C) or higher.
18,000 Miles (30 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
An Emission Control Service.
(See footnote #.)
velocity .joints and axle seals for leaking. (See footnote 'K'k.)
rotation pattern and additional information. (See footnote +.)
DATE
SERVICED
BY
7-10
ProCarManuals.com

I Short TripKity Maintenance Schedule I
27,000 Miles (45 000 km) (Continued)
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
(See
footnote
#.)
velocity joints and axle seals for leaking. (See footnote +'+'.)
30,000 Miles (50 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote
#.)
0 Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals
for leaking. (See footnote a:*.)
0 Replace fuel filter.
An Emission Control Service. (See footnote-1.)
0 Replace air cleaner filter.
An Emission Control Service.
0 Change automatic transmission fluid and filter if the vehicle is mainly driven
under one
01- more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
An Emission Control Service.
(32°C) or higher.
DATE 1
SERVICED BY
7-12
ProCarManuals.com

I Short TripKity Maintenance Schedule I
45,000 Miles (75 000 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 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°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
(32°C) or higher.
If you clo not use yo~lr velzicle under cmy oftlzese cotzditions, chunge the jluid
und,filter every
50,000 miles (83 000 km).
filter if necessary.
An Emission Control Service. (See footnoteJf.)
0 Inspect air cleaner filter if you are driving in dusty conditions. Replace
DATE
R;IILEAGE
ACTUA*’ SERVICED BY
7-15
ProCarManuals.com

I Short TripKity Maintenance Schedule
60,000 Miles (100 000 kin) (Colztinued)
0 Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
**.)
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°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
Ifyocr do not use your vehicle under any of tl.rese conditions, clzange the.fluid
anclfilter every 50,000 miles (83 000 knz).
(32°C) or higher.
0 Inspect engine accessory drive belt.
0 Replace fuel filter.
0 Replace air cleaner filter.
An Emission Control Service. (See footnote?.)
An Emission Contrrul Service.
0 Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts
as needed.
An Ernission Control Service. (See footnote?.)
rotation pattern
and additional information. (See footnote +.)
0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
ProCarManuals.com

I Short TripKity Maintenance Schedule I
- 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, change the fluid
andfilter every
50,000 miles (83 000 km).
filter if necessary.
An Emission Control Service. (See footnote?.)
velocity joints and axle seals for leaking. (See footnote
**.)
0 Inspect air cleaner filter if you are driving in dusty conditions. Replace
0 Check readfront axle fluid level and add fluid as needed. Check constant
78,000 MiZes (130 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
An Emission Control Service.
(See footnote #.)
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 I
MILEAGE
- 7-21
ProCarManuals.com

I Long Tripmighway Maintenance Schedule I
30,000 Miles (50 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Ccmtrol Service.
0 Lubricate chassis components (or every 12 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 ‘j”!’.)
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°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
(32 O C) or higher.
- Uses such as found in taxi, police or delivery service.
Ifyo~t do 17.of LW ywr vehicle u~zder L~II~ qf these conditions, c+.ange thcJluicl
mid ji’lter every 50,000 nziles (83 000 km).
rotation pattern and additional information. (See footnote +.)
AI? Emissiol? Control Service. (See footnote’!.)
An Emission Control Service.
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
0 Re.place fuel filter.
0 Replace air cleaner filter.
DATE I
I MILEAGE ACTUAL I SERVICEDBY I
7-30
ProCarManuals.com

Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be performed at least twice a year (for instance, each
spring and fall). You should
let your retailer’s service
department or other qualified service center do these
jobs. Make sure any necessary repairs are completed
at once.
Proper procedures to perform these services may be
found in a service manual. See “Service and Owner
Publications” in the Index.
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or
lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the drive
axle boot seals for damage, tears
or leakage. Replace
seals
if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system.
Look for broken, damaged,
missing or out-of-position parts
as well as open seams,
holes, loose connections or other conditions which could
cause
a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See “Engine Exhaust”
in
the Index.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace
as needed. Clean the outside
of the radiator and air conditioning condenser.
To help
ensure proper operation, a pressure test of the cooling
system and pressure cap is recommended at least once
a year.
ProCarManuals.com