1997 GMC JIMMY maintenance schedule

Front Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant and when to change it. See
“Scheduled Maintenance Services” in the Index.
How to Check Lubricant
If the level is below the bottom of the filler plug hole,
you’ll need to add same lubricant.
If the differential is at operating temperature (warm),
add enough lubricant to raise the level to the bottom af
the filler plug hole.
If the differential is cold, add enough lubricant to raise
the level to 1/2 inch (12 mm) beluw the filler plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind
of lubricant to use. See “Recommended Fluids and
Lubricants”
in the Index.
6-22

There are only two reasons why the brake fluid level in
the reservoir might go down. The first is that the brake
fluid goes down to an acceptable level during normal
brake lining wear. When new linings are put in, the fluid
level goes back up. The other reason is that fluid is
leaking out of the brake system. If it is, you should have
your brake system fixed, since a leak means that sooner
or later your brakes won’t work well, or won’t work
at all.
So, it isn’t a good idea to “top off’ your brake fluid.
Adding brake fluid won’t correct a leak. If you add fluid
when your linings
are worn, then you’ll have too much
fluid when you get new brake linings. You should add
(or remove) brake fluid, as necessary, only when work is
done on the brake hydraulic system. Refer
to the Maintenance Schedule to determine when to
check your brake fluid. See “Periodic Maintenance
Inspections” in the Index.
Checking Brake Fluid
If you have too much brake fluid, it can spill on the
engine. The fluid
wiu burn if the engine is hot
enough.
You or others could be burned, and your
vehicle could
be damaged. Add brake fluid only
when work
is done on the brake hydraulic system.
I
You can check the brake fluid without taking off the cap.
Just look at the windows on the brake fluid reservoir. The fluid levels should be above MIN. If they aren’t,
have your brake system checked to see
if there is a leak.
After work is done on the brake hydraulic system, make
sure the levels are above
MIN and below the top of
each window.
6-29

I NOTICE: (Continued) I
If your tires have too much air (overinflation),
you
can get the following:
0 Unusual wear
0 Bad handling
0 Rough ride
Needless damage from road hazards.
When to Check
Check your tires once a month or n101-e. Also. check the
tire pressure
of the spare tire.
I! you have a compact spare tire. it should be at 60 psi
(420
k Pa).
How to Check
Use a good quality pocket-type gage to check tire
pressure. You can't tell
if your tires are properly inflated
simply
by looking at thcm. Radial tires may look
properly inflated even when they're underintlatecl.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks
by keeping out dirt and moisture.
Tire Inspection and Rotation
Tires s11o111d be rotated every 6,000 to 8,000 miles
( IO 000 to 13 000 km). Any time you notice unusual
we;^. rotate your tires as soon as possible and check
wheel alignment.
Also check for damaged tires or
wheels. See "When 1t.s Time for New Tires" and
"Wheel Replacement" later
in this section for
more information.
Thc purpose
of' reg~~lar rotation is to achieve more
uniform wear
fur all tires on the vehicle. The first
rotation
is thu most important. See "Schecluled
Maintenance Services"
in the Index for scheduled
rotation intervals.
r --
6-42

Section 7 Maintenance Schedule
This section covers the maintenance required for ~OLI~ vehicle. Your vehicle needs these services to retairl its safety,
dependability and emission control performance.
7-2
7-4
7-5 7-5
7-6
7-6
Introduction Part
A: Scheduled Maintenance Services
Short Trip/City Definition
Short Trip/City Intervals
Long Trip/Highway Definition
Long Trip/Highway Intervals 7-7
7-30
7-46
7-50
7-52
7-55 Short Trip/City Maintenance
Schedule
Long Trip/Highway Maintenance Schedule
Part
B: Owner Checks and Services
Part
C: Periodic Maintenance Inspections
Part
D: Recommended Fluids and Lubricants
Part
E: Maintenance Record
7-1

How This Section is Organized
The remainder of this section is divided into five parts:
“Part
A: Scheduled Maintenance Services” shows
u:hat
to 11a1:e done md how often. Some of these
services can be complex.
so unless you are technically
q~~alifiecl
and 11ac.e the necessary equiptnent. you should
let your dealer‘s service department or another qdified
service center
do these jobs.
Performing maintenance work on a vehicle can
be dangerous. In trying to do some jobs, you can
be seriously injured.
Do your own maintenance
work
only if you have the required know-how
and the proper tools and equipment for the job.
If you have any doubt, have a qualified
technician do the work. “Part
B: Owner Checks and Services”
tells you
what should be checked and when. It also explains
what
you c;m easily do to help keep yo~tr vehicle in
ci ~od condition.
“Part C: Periodic Maintenance Inspections”
explains import;lnt inspections that your
GM dealer’s
service depu-tment or another qualified service center
ShOLlld perforlll.
“Part
D: Recommended Fluids and Lubricants” lists
some products GM reco~ntnends to help keep yo~~r
vehicle properly maintainecl.
‘These products. or their
equivalents. should
be used whether you do the work
yourself
or I~a\;e it done.
“Part
E: Maintenance Record” pro\;ides a place for
you to record the maintenance perfw-riled on yo11r
\:chicle. Whenever any maintenance is perfor~ned. be
sure to write it down in this part. This will help you
deternline when your
next maintenance should be done.
In addition. it is a good idea to keep your tnaintenance
receipts. They
may be needed to ql~alify your vehicle for
warranty repairs.
7-3

Part A: Scheduled Maintenance
Services
Using Your Mair mce Schedule A - --
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 errands or in many
other ways.
Because
of all the different ways people LIS~ their GM
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 dealer.
This part tells
you the maintenance services YOLI should
have done and when
you should schedule them. If you
go to your dealer for your service needs, you'll know
that GM-trained
and supported service people will
perform the work using genuine
GM parts. The
proper tluids 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:
a
a
e
a
carry passengers and cargo within reconmended
limits. You
will find these limits on your vehicle's
Certification/Tire label. See "Loading Your Vehicle"
in the Index.
are driven on reasonable road surfaces within legal
dri\:ing limits.
are driven off-road
in the recommended manner. See
"Off-Road Driving With YOLIT Four-Wheel-Drive
Vehicle"
in the Index.
LIS~ the reconmended 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:
7-4

Maintenance Schedule
Short TripKity Definition
Follow the Short Trip/City Maintenance Schedule if any
one
of' these conditions is true for your
ehick:
0 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).
off-road frequently.
your vehicle.
or other comnwcial application.
0 Most trips include extensive idling (such as frequent
0 You operate your vehicle in dusty areas or
0 You I-'recluently tow a trailer or use a carrier on top of
0 If the vehicle is used for delivery service, police, taxi
OII~? of'the 1-ec1,son.s !*OLL .sho~rl~l,fi,ll~~t~~ this .sc*Iwdulc~ if you
optute !mrr \vl?ic*le L~OI- elq* of' thesc c-oditiorzs is tlwt
those cwclitior1.v
(YILIS~ e~lgiw oil to h~wk lloc
SOOIIOK
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).
Short TripKity Intervals
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. Front
Wheel Bearing Repack (2WD only) (or at each brake
relining, whichever occurs
first).
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. 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.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV
j Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months. whichever occ~lrs first).
Thc>,vt> if?ter~ul.s o~l~- .swwncrri:o 1uc1intemtlce ser\!ic:t>s.
He ,s11t-~3 to folloct- the c-omplote mrlirztencrnc'cJ .sc*he,dult?
on tl~~~.~~)ll~)~~,i~l~~ pclgr.s.
7-5

Maintenance Schedule
I Long Trip/Hiahway Definition
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.
Lone TridHiehwav Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever C)CCLI~S first).
Chassis Lubrication (or every
I2 months, whichever
occ~~rs first). Drive Axle Service. Tire Rotation.
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement.
Air Cleaner Filter Replacement. Front
Wheel Bearing Repack (2WD only) (or at each brake
relining, whichever occurs first).
Transmission Service (severe conditions only).
Drive Belt Inspection. Fuel
Tank, Cap and
Lines Inspection.
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).
Every 50,000 NIiles (83 000 km): Automatic
Every 60,000 Miles (100 000 km): Engine Accessory
Every 100,000 Miles (166 000 km): Spark Plug Wire
7-6