1997 PONTIAC BONNEVILLE check engine

Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow
of coolant through the radiator until the coolant
reaches a preset temperature.
Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless you suspect there is a leak
in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
How To Check Power Steering Fluid
When the engine compartment is cool, unscrew the cap
and wipe the dipstick with a clean rag. Replace the cap
and completely tighten it. Then remove the cap again
and look at the fluid level on the dipstick.
The level should be at the FULL COLD mark. If
necessary, add only
enough fluid to bring the level up to
the
mark.
What to Use
To determine what kind of fluid to use, see
“Recommended Flui’ds and Lubricants” in the Index.
Always use
the proper fluid. Failure to use the proper
fluid can cause leaks
and damage hoses and seals.
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L36 Engine Accessory Belt
The L36 engine uses an engine accessory belt. This
diagram shows the features connected and the routing.
See “Maintenance Schedule” in the Index for when to
check the belt.
A
C
A. Power Steering
B. Generator
C. Air Conditioning
D. Crank
E. Coolant Pump
E Idler
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L67 Engine Accessory Belt
The Supercharged 3800 (L67) engine uses two accessory
drive belts. The inner belt drives the generator, power
steering pump, coolant pump
and air conditioning. The
outer belt drives the supercharger. Each belt has its own
temioner and idler pulley. See “Maintenance Schedule’’
in the Index for when to check the accessory drive belts
and the supercharger oil level. Have your dealer check
the
oil level in the supercharger.
F
1. Front Belt
2. Back Belt
A. Generator
B. Power Steering Pump
C. Crank
D. Supercharger
E. Coolant Pump
E Air Conditioning
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Maintenance Schedule
1 Short Trip/City Definition I
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions is true for your vehicle:
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).
Most trips are through dusty areas.
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 sooner.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Chassis Lubrication
(or
6 months, whichever occurs first). Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving in dusty conditions.
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Supercharger Oil Check (or every
36 months,
whichever occurs first)
(3.8L Code 1 engine only).
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to
follow the complete maintenance schedule on
the following pages.
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Maintenance Schedule
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.
Driving a vehicle with a fdy warmed engine
under highway conditions causes engine
oil to
break down slower.
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or every
12 months, whichever
occurs first). Tire Rotation.
Every 30,000 Miles (50 000 km): Supercharger Oil
Check (or every
36 months, whichever occurs first)
(3.8L Code 1 engine only). Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 0100 km): Engine Accessory
Every 100,000 Miles (166 000 km): Spark Plug Wire
Every 150,0001 Miles (240 000 km): Cooling System
Drive Belt Inspection.
Inspection.
Spark Plug Replacement.
Service (or every
60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure
to follow the complete maintenance schedule on
the following
pages.
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I Short TriplCity Maintenance Schedule I
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 f.)
c] Rotate tires. See “Tire Inspection and
Rotation” in the Index for proper rotation
pattern and additional information.
(See footnote
+.)
I DATE I ACTUAL’MILEAGE I SERVICED BY: I
33,000 Miles (55 000 km)
0 Change engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
I I I
DATE ACTUAL MILEAGE SERVICED BY:
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)Short Trip/City Maintenance Schedule 1
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 T.)
Rotate tires. See “Tire Inspection and
Rotation” in the Index for proper rotation
pattern and additional information.
(See footnote
+.) (Also see footnote ++.)
DATE SERVICED BY ACTUAL MILEAGE
63,000 Miles (105 000 km,
0 Change
engine oil and filter (or every
3 months, whichever occurs first).
An Emission Control Service.
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