1998 GMC SAVANA Owners Manual

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
The key should turn to LOCK only when the shift
lever is in
PARK (P).
0 The key should come out only in LOCK.
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.
0 To check the parking brake’s holding ability: 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.
0 To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK
(P). Then
release all brakes.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials
from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
7-41
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 pour dealer’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 and Suspension 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.
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.
7-42
ProCarManuals.com

Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as
needed. Replace any components that have high effort
or excessive wear.
Do not lubricate accelerator and
cruise control cables.
Rear Axle Service
Check the gear lubricant level in the rear axle and add if
needed.
See “Rear Axle” in the Index. A fluid loss may
indicate a problem. Check the axle and repair it
if needed.
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, parking 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.
7-43
ProCarManuals.com

Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE
Engine Oil
(Gasoline
Engine)
Engine Coolant
FLUIDLUBRICANT
Engine Oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst”
symbol of the proper viscosity.
To
determine the preferred viscosity
for your vehicle’s engine, see
“Engine Oil” in
the Index.
50150 mixture of clean water
(preferably distilled) and use only
GM Goodwrench@ DEX-COOL@
or Havoline@ DEX-COOL@
Coolant. See “Engine Coolant” in
the Index.
I USAGE
Hydraulic Brake
System
Parking Brake
Cable Guides
Power Steering
System
Automatic
Transmission
Key
Lock
Cylinders
FLUIDLUBRICANT
Delco Supreme 11 @ Brake Fluid
(GM Part
No. 12377967 or
equivalent DOT-3 Brake Fluid).
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI
# 2, Category LB
or GC-LB.
GM Power Steering Fluid (GM
Part No. 1052884
- 1 pint,
10500 17
- 1 quart, or equivalent).
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 12346241 or equivalent).
7-44
ProCarManuals.com

USAGE
Chassis
Lubrication
Front Wheel Bearings
Differential,
Rear Axle
Windshield
Washer Solvent
Propshaft Splines and
Universal Joints
FLUID/LUBRICANT
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI
# 2, Category LB
or GC-LB.
Wheel Bearing Lubricant meeting
requirements
of NLGI ## 2,
Category GC or GC-LB (GM Part
No. 105 1344 or equivalent).
Axle Lubricant (GM Part
No. 105227 1) or SAE 8OW-90
GL-5 Gear Lubricant.
GM Optikleen' Washer Solvent
(GM Part
No. 105 15 15)
or equivalent.
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI ## 2, Category LB
or GC-LB.
USAGE
One-Piece
Propshaft Spline
Hood Latch
Assembly,
Pivots, Spring
Anchor and
Release Pawl
Hood Hinges
~
Weatherstrip
Conditioning
Weatherstrip
Squeaks
FLUIDLUBRICANT
Spline Lubricant, Special
Lubricant (GM Part
No. 12345879) or lubricant
meeting requirements of
GM 998530.
Lubriplate@ Lubricant Aerosol
(GM Part
No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI
## 2,
Category LB or GC-LB.
Multi-Pu ose Lubricant,
Superlube (GM Part
No. 1234624 1 or equivalent).
Dielectric Silicone Grease (GM
Part
No. 12345579 or equivalent).
Multi-Pu ose Lubricant,
Superlube (GM Part
No. 12346241 or equivalent).
%
%
7-45
ProCarManuals.com

Part E: Maintenance Record Any additional information from “Owner Checks and
Services” or “Periodic Maintenance” can be added on
After the scheduled services are performed, record the
the following record pages. Also, you should retain all
date, odometer reading and who performed the service maintenance receipts. Your owner information portfolio
in the boxes Provided after the maintenance interval. is a convenient place to store them.
Maintenance Record
ODOMETER
DATE READING SERVICED
BY MAINTENANCE PERFORMED
7-46
ProCarManuals.com

Maintenance Record
I ODOMETER I
DATE READING SERVICED BY MAINTENANCE PERFORMED
7-47
ProCarManuals.com

Maintenance Record
SERVICED BY
7-48
ProCarManuals.com