1999 OLDSMOBILE ALERO suspension

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6-31
To check the aim, the vehicle should be properly
prepared as follows:

The vehicle must have all four tires on a perfectly
level surface.

If necessary, pads may be used on an uneven surface.

The vehicle should not have any snow, ice or mud
attached to it.

The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.

There should not be any cargo or loading of the
vehicle, except it should have a full tank of fuel and
one person or 160 lbs. (75 kg) on the driver's seat.

Close all doors.

Tires should be properly inflated.

Rock the vehicle to stabilize the suspension.
Start with the horizontal aim. The adjustment screws
can be turned with an E8 Torx socket or a
T15 Torx screwdriver.
Once the horizontal aim is adjusted, then adjust the
vertical aim.
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7-17
Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall). You should let your 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 ªService and Owner
Publicationsº 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 ªEngine Exhaustº 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.
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.
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. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.
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8-12
CURRENT PUBLICATIONS FOR 1999 OLDSMOBILE
SERVICE MANUALS
Service Manuals have the diagnosis and repair information
on engines, transmission, axle, suspension, brakes,
electrical, steering, body, etc.
RETAIL SELL PRICE: $90.00
TRANSMISSION, TRANSAXLE, TRANSFER CASE
UNIT REPAIR MANUAL
This manual provides information on unit repair service
procedures, adjustments and specifications for the
1999 GM transmissions, transaxles and transfer cases.
RETAIL SELL PRICE: $50.00
SERVICE BULLETINS
Service Bulletins give technical service information needed
to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the
diagnosis and service of your vehicle.OWNER'S INFORMATION
Owner publications are written directly for Owners and
intended to provide basic operational information about the
vehicle. The owner's manual will include the Maintenance
Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner's Manual and
Warranty Booklet.
RETAIL SELL PRICE: $20.00
Without Portfolio: Owner's Manual only.
RETAIL SELL PRICE: $15.00
CURRENT & PAST MODEL ORDER FORMS
Service Publications are available for current and past
model GM vehicles. To request an order form, please
specify year and model name of the vehicle.
PLEASE COMPLETE THE ORDER FORM SHOWN ON
THE FOLLOWING PAGE AND MAIL TO:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207OR ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM ± 6:00 PM Eastern Time
For Credit Card Orders Only (VISA±MasterCard±Discover)
1999 OLDSMOBILE SERVICE PUBLICATIONS ORDERING INFORMATION
The following publications covering the operation and servicing of your vehicle can be purchased by filling out
the Service Publication Order Form in this book and mailing it in with your check, money order,
or credit card information to Helm, Incorporated (address below.)
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9-5
Ignition Positions 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Lock Check 7-16 . . . . . . . . . . . . . . . . . . . .
Illuminated Entry/Exit 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation, Tire 6-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Day/Night Rearview Mirror 2-44 . . . . . . . . . . . . . . . . .
Inspections 7-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake System 7-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling System 7-17 . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 7-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Boot 7-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Seal 7-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator and Heater Hose 7-17 . . . . . . . . . . . . . . . . . . . . . .
Steering 7-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension 7-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle System 7-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-53, 6-54, 6-55 . . . . . . . . . . . . . . . . . . . . . . . .
Intensity Control 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lamps 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack, Tire 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinders Service 7-14 . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-52 . . . . . . . . . . . . . . . . . . . . . Tire
-Loading Information 4-32 . . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-52 . . . . . . . . . . . . . . . . . . .
Lamps 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirror Reading 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-28 . . . . . . .
Lights
Air Bag Readiness 1
-25, 2-55 . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning 2-57, 4-7 . . . . . . . . . . . .
Brake System Warning 2-52, 6-25 . . . . . . . . . . . . . . . . . . . .
Change Oil 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Indicator 2-55 . . . . . . . . . . . . . . . . . . . . . .
Check Engine 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil Pressure Light 2-64 . . . . . . . . . . . . . . . . . . . . . .
Enhanced Traction System Active 2-59 . . . . . . . . . . . . . . . .
Enhanced Traction System Warning 2-58 . . . . . . . . . . . . . .
Interior 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant Warning 2-60, 6-21 . . . . . . . . . . . . . . . . . . . .
Low Oil 2-65, 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Tire Pressure 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Wash 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-8, 2-54 . . . . . . . . . . . . . . . . . . . . . .
Security 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Vehicle Soon 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lock Out Switch 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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