1993 PONTIAC BONNEVILLE check engine

To Check or Replace (3800
Supercharged Engine):
1, Unsnap the three clips in the housing cover and pull back.
2. Unscrew the clamp on the air intake
hose where the hose attaches to the
throttle body near the top of the
engine. Detach the hose from the
throttle body, then pull back the rear
of the housing cover. 3. Remove the air filter.
4. Be sure to install the air filter and
5. Reattach the air intake hose and
replace the cover tightly.
tighten the clamp.
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Service & Appearance Care
Automatic Transax/e Fluid
When to Check and Change:
A good time to check your automatic
transaxle fluid level is when the engine
oil is changed. Refer to the Maintenance
Schedule to determine when to change
your fluid. See the
Index under
Scheduled Maintenance Services.
How to Check:
Because this operation can be a little
difficult, you may choose to have this
done at a dealership Service
Department. If
you do it yourself, be
sure to follow all the instructions here,
or you could get a false reading on the
dipstick.
Too much or too little fluid can
damage your transaxle.
Too much
can mean that some of the fluid
could come
out and fall on hot
engine parts, starting
a fire. Be
sure to get an accurate reading if
you check your transaxle fluid.
Wait at least
30 minutes before checking
the transaxle fluid level if
you have been
driving:
When outside temperatures are above
At high speed for quite a while.
In heavy traffic-especially in hot
While pulling a trailer.
90" F (32" C).
weather.
To get the right reading, the fluid should
be at normal operating temperature,
which is
180°F to 200°F (82°C to
93" C).
Get the vehicle warmed up by driving
about
15 miles (24 km) when outside
temperatures are above
50" F (10" C). If
it's colder than
50°F (lO°C), you may
have
to drive longer.
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To Check the Fluid Level:
Park your vehicle on a level place.
Place the shift lever in P (Park) with
With your foot on the brake pedal,
the parking brake applied.
move
the shift lever through each gear
range, pausing for about three seconds
in each range. Then, position the shift
lever in
P (Park).
five minutes.
Let the engine run at idle for three to
Then, Without Shutting Off the
Engine,
Follow These Steps:
1. Pull out the dipstick and wipe it with
a clean rag or paper towel.
2. Push it back in all the way, wait three
seconds and then pull it back out
again.
3. Check both sides of the dipstick, and
read the lower level. The fluid level
must be in the crosshatched area.
4. If the fluid level is where it should
be, push the dipstick back in all the
way.
c
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Service & Appearance Care
Automatic Transaxle Fluid (CONTJ
How to Add Fluid:
Refer to the Maintenance Schedule to
determine what kind
of transaxle fluid to
use. See the
Index under Fluids &
Lubricants.
If the fluid level is low, add only enough
of the proper fluid to bring
the level up
into the cross-hatched area on the
dipstick. It doesn't take much fluid,
generally less than a pint
(0.5 L). Don't
overfill. We recommend that you use
only fluid labeled DEXRON@-IIE,
because fluids with that label are made
especially for your automatic transaxle.
Damage caused by fluid other than
DEXRON@-IIE is not covered by your
new vehicle warranty. After adding
fluid, recheck the fluid
level as described under
How to Check.
When the correct fluid level is obtained,
push the dipstick back
in all the way.
Engine Coolant
The following explains your cooling
system and how to add coolant when
it
is low. If you have a problem with
engine overheating, see the Index under
Engine Overheating.
The proper coolant for your Pontiac
will:
Give freezing protection down to
Give boiling protection up to 262°F
Protect against rust and corrosion.
-34°F (-37°C).
(128" C).
Help keep the proper engine
temperature.
a
Let the warning lights work as they
should.
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Service & Appearance Care
A’
Adding Coolant
To Check Coolant:
When your engine is cold, the coolant
level should be between the
FULL
COLD mark and FULL HOT. When
your engine is warm, the level should be
up
to FULL HOT, or a little higher.
m.. 240
If you have the optional low coolant
warning light and it comes on when
your engine is running, you’re low on
coolant. Or, if you have the optional
Driver Information Center and the
warning
LOW COOLANT appears,
you’re low on coolant.
To Add Coolant:
If you need more coolant, add the
proper
mix at the coolant recovery
tank.
II Turning the radiator pressure 1
- 1 cap when the engine and
raalator are hot can allow steam
and scalding liquids to blow out
and bum
you badly. With the
coolant recovery
tank, you will
almost never have to add coolant at
the radiator. Never
turn the
radiator pressure cap-even a
little-when the engine and
radiator are hot.
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Service & Appearance Care
Power Steering Fluid
How to Check Power Steering Fluid:
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.
When the engine Compartment is hot,
When the engine compartment is cool,
the
level should be at
the H mark.
the level should be at the
C mark.
I.. 242
I
What to Add:
Refer to the Maintenance Schedule to
determine what lund
of fluid to use. See
the
Index under Fluids & Lubricants.
1
When adding power steering fluid
or making a complete fluid change,
always use the proper fluid. Failure
to use the proper fluid can cause
leaks and damage hoses and seals.
Windshield Washer Fluid
To Add:
Open the cap labeled WASHER FLUID
ONLY. Add washer fluid until the bottle
is
full.
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Engine Identification
The eighth character in your VIN is the
engine code for your
GM engine. This
code will help you identify your engine,
specifications, and replacement parts in
this section.
Service Parts Identification Label
You’ll find this label on your spare tire
cover. It’s very helpful if you ever need
to order parts. On this label is:
Your VIN.
Its model designation.
Paint information.
A list of all production options and
special equipment.
Be sure that this label is not removed
from the vehicle.
Add-on Electrical Equipment
Don’t add anything electrical to
your Pontiac unless you check with
your dealer first. Some electrical
equipment can damage your
vehicle and the damage wouldn’t
be covered
by your warranty. Some
of it can just keep other things
from working as they should.
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Service & A .ante Care
Righf Side Fuse Panel Fuses
Additional fuses are located in the relay
(AMP.) center, on the far right side, below the
Position Rating Circuitry
instrument panel. %u must remove the
sound insulator
on the right side of the
passenger
foot well to replace these
fuses.
Replacing these fuses is difficult. We
recommend that you see your dealer if
you need one replaced.
1
2
3
4
5
6
7
8
10
15
15
20
15
20
10
10
A/C Programmer
Fog Lamps
Power Antenna/Door Locks
Horns
Engine Relays and
Miscellaneous Engine
Content
Fuel Pump
Fuel Injectors
Engine Control Module, PASS-KeyTM
Maxifuse/Relay Center
To check the fuses in this underhood
fuse center, turn the two
knobs % turn
counterclockwise and loosen
the metal
wing nut on the passenger side
of the
cover. Then remove the cover. The
inside of the cover has a chart that
explains the features and controls
governed by each fuse and relay.
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