service BUICK REGAL 1998 Workshop Manual

Sheet Metal Damage
If your vehicle is damaged and requires sheet metal
repair or replacement, make sure the body repair shop
applies anti-corrosion material to the parts repaired or
replaced to restore corrosion protection.
Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch-up
materials available from your dealer or other service
outlets. Larger areas of finish damage can be corrected
in your dealer’s body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect
on the underbody. If these are not
removed, accelerated corrosion (rust) can occur on
the underbody parts such as fuel lines, frame, floor
pan and exhaust system even though they have
corrosion protection. At
least every spring, flush these materials from the
underbody with plain water. Clean any areas where mud
and other debris can collect. Dirt packed in closed areas
of the frame should be loosened before being flushed.
Your dealer or an underbody car washing system can
do
this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on your vehicle. This damage
can take two forms: blotchy, ringlet-shaped
discolorations, and small irregular dark spots etched into
the paint surface.
Although no defect
in the paint job causes this, Buick
will repair, at no charge
to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs first.
6-58
ProCarManuals.com

Vehicle Identification Number (VIN)
IIIIIIIIIIIII 11l1111111111I IIIIIIIIIIIIIIII1111IIIIIIIIIIII
7.
ENGINE/l&8 f - ASSEMBLY
CODE MODEL YEAR PLANT
This is the legal identifier for your vehicle. It appears on
a plate in the front corner of the instrument panel, on the
driver’s side.
You can see it if you look through the
windshield from outside your vehicle. The
VIN also
appears on the Vehicle Certification and Service Parts
labels and the certificates of title and registration.
Engine Identification
The 8th character in your VIN is the engine code. This
code will help you identify your engine, specifications
and replacement parts.
Service Parts Identification Label
You’ll find this label on the inside of the trunk lid. It’s
very helpful if you ever need to order parts.
On this
label is:
0 your VIN,
0 the model designation,
0 paint information and
a list of all production options and special
equipment.
Be sure that this label is not removed from the vehicle.
6-60
ProCarManuals.com

Replacement Bulbs
Exterior Lamps Bulb Number
Back-up .............................. 1156
Center High-Mounted Stop
............... 3155
Front Parking/Turn Signal
........... 4 157NAK
Headlamp, High Beam
.................. 9005
Headlamp, Low Beam.
.................. 9006
Sidemarker, Front ....................... 194
Sidemarker, Rear
........................ 194
Stop/Tail/Turn Signal
................... 3057
Tail (Applique)
....................... 194
Interior Lamps Bulb Number
Dome Lamp ....................... 9425542
*For service information on these bulbs, contact your
dealer service department.
Capacities and Specifications
4T65E:
Automatic Transaxle
Pan Removal and Replacement .... 7.4 quarts (7 L)
After Complete Overhaul
....... 10 quarts (9.5 L)
When drainingheplacing converter; more fluid will
be needed.
Cooling System Including Reservoir
3.8L (Code K) .............. 12.3 quarts (11.6 L)
3.8L (Code 1)
.............. 12.3 quarts (11.6 L)
Air Conditioning* .......... 1.88 lbs. (0.85 kg)
Refrigerant (R-l34a),
*See “Air Conditioning Refrigerants ”later in
this section.
Engine Crankcase
Oil and Filter Change ......... 4.5 quarts (4.3 L)
Wheel Nut Torque .......... 100 lb-ft (140 N-m)
Fuel Tank .................... 17 gallons (64 L)
Wiper Blade Lengths
Type ................................. Hook
Length ..................... 22 inches (56 cm)
Note: All capacities are approximate. When adding, be
sure
to fill to the approximate level, as recommended in
this manual. See “Recommended Fluids and
Lubricants” in the Index.
ProCarManuals.com

n
Section 7 Maintenance Schedule
This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety,
dependability and emission control performance.
7-2
7-2
7-3
7-4
7-4
7- 14 7- 14
7- 14
7- 15
7- 15
Introduction
Your Vehicle and the Envlronment
How This Section
is Organized
Part
A: Scheduled Maintenance Servlces
Using Your Maintenance Schedule
Part
B: Owner Checks and Services
At Each Fuel Fill
At Least Once a Month
At Least Twice a Year
At Least Once a Year
7-18
7- 18
7-18
7-18
7-18 7-18
7-19
7-20 Part C: Periodic Maintenance Inspections
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
Exhaust System Inspection
Engine Cooling System Inspection
Throttle System Inspection
Brake System Inspection
Part D: Recommended Fluids and Lubricants
Part
E: Maintenance Record
7-1
ProCarManuals.com

How This Section is Organized
The remainder of this section is divided into five parts:
“Part A: Scheduled Maintenance Services” shows
what to have done and how often. Some of these
services can be complex,
so unless you are technically
qualified and have the necessary equipment, you should
let your dealer’s service department or another qualified
service center do these jobs.
I
I
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.
If you are skilled enough to do some work on your
vehicle,
you will probably want to get the service
information. See “Service and Owner Publications”
in the Index.
“Part B: Owner Checks and Services” tells
you what should be checked and when. It also explains
what you can easily do to help keep your vehicle in
good condition.
“Part C: Periodic Maintenance Inspections”
explains important inspections that your dealer’s service
department or another qualified service center
should perform.
“Part D: Recommended Fluids and Lubricants”
lists some recommended products to help keep your
vehicle properly maintained. These products, or their
equivalents, should be used whether you do the work
yourself
or have it done.
“Part E: Maintenance Record” provides a place
for you
to record the maintenance performed on your
vehicle. Whenever any maintenance is performed, be
sure to write
it down in this part. This will help you
determine when your next maintenance should be done.
In addition,
it is a good idea to keep your maintenance
receipts. They may be needed to qualify your vehicle for
warranty repairs.
7-3
ProCarManuals.com

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 errands 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 dealer. This
part tells you the maintenance services you 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 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.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits. You will find these limits
on your vehicle’s
Tire-Loading Information label. See “Loading Your
Vehicle” in the Index.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. See “Fuel” in the Index.
7-4
ProCarManuals.com

I Maintenance Schedule I
The services shown in this schedule up to 100,000 miles
(166
000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at 150,000 miles
(240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure
to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
* Your vehicle has an Engine Oil Life Monitor. This
monitor will show you when to change the engine oil
and filter
-- usually between 3,000 miles (5 000 km)
and 7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come on
before
3,000 miles (5 000 km). Never drive your vehicle
more than
7,500 miles (12 500 km) or 12 months
without an oil and filter change.
The system won’t detect dust in the oil.
So if you drive
in a dusty area, be sure to change your oil and filter
every
3,000 miles (5 000 km) or sooner if the CHANGE
OIL SOON light comes
on. Remember to reset the Oil
Life Monitor when the oil has been changed. For more
information,
see “Change Oil Soon Light” in the Index.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections” in Part C of this schedule.
7-5
ProCarManuals.com

I Maintenance Schedule I
7,500 Miles (12 500 knt)
0 Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See “Engine Oil”
in the Index.
An Emission Control Sewice. (See footnote *.)
rotation pattern and additional information. (See footnote +.)
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
15,000 Miles (25 000 km)
0 Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See “Engine Oil” in the Index.
An Emission Control Sewice. (See footnote *.)
0 Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote t.)
0 Replace passenger compartment air filter.
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
22,500 Miles (37 500 km)
0 Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See “Engine Oil” in the Index.
An Emission Control Service. (See footnote *.)
DATE
MILEAGE
ACTUAL I SERVICEDBY: I
DATE I
MILEAGE
ACTUAL SERVICED BY:
DATE
ProCarManuals.com

Maintenance Schedule
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
30,000 Miles (50 000 km)
17 Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See “Engine Oil” in the Index.
An Emission Control Service. (See footnote *,)
0 Replace passenger compartment air filter.
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
0 Replace air cleaner filter.
0 Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
rotation
pattern and additional information. (See footnote
+.)
An Emission Control Service.
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote?.)
0 For supercharged engines only: Check the supercharger oil level and add oil as
needed (or every
36 months, whichever occurs first). See “Recommended
Fluids and Lubricants” in this section.
An Emission Control Service. (See footnote?.)
DATE
7-7
ProCarManuals.com

I Maintenance Schedule I
37,500 Miles (62 500 km)
0 Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See “Engine Oil” in the Index.
An Emission Control Service. (See footnote *.)
rotation pattern and additional information. (See footnote +.)
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
45,000 Miles (75 000 km)
0 Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See “Engine Oil” in the Index.
An Emission Control Service. (See footnote *.)
0 Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote “f)
0 Replace passenger compartment air filter.
Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
DATE
DATE
MILEAGE
50,000 Miles (83 000 km)
0 Change automatic transaxle fluid and filter if the vehicle is mainly driven
MILEAGE under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
(32°C) or higher.
7-8
ProCarManuals.com