BUICK ROADMASTER 1993 Owners Manual

Add coolant mix at the recovery tank, but be careful not
to spill it.
You can be burned if you spill coolant on hot
engine
parts. Coolant: contains ethylene glycol,
and
it will burn if the engine parts are ho
e ~h. Dg -k SI coolant on a hot engr ---
Radiator -Pressure Cap , ..
,... , . ..
I
When you replace your raidiator$re&l ', cap,.an 'I
cap is recommended. ..
. I
.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.
When
you replace your thermostat, an,AC@ thermostat. .
is recommended.
259

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, the level %-‘- L
should be at the “HOT” mark. *. s
When the engine Compartment is cool, the level
should be at the “FULL
COLD’; mark.
What to Add:
Refer to the Maintenance Schedule to determine what
kind
of fluid to use. See (‘Recommended Fluids and
Lubricants” in the Index.
k‘ T, ’ . I

Windshield Washer Fluid
To Add:
The windshield washer reservoir is located at the left of
the engine compartment.
Open.
the cap labeled “WASHER FLUID ONLY.” Add
washer fluid until the bottle is full.
261

!

Replacing Brake System Parts
The braking system on a modem vehicle is complex. Its
many parts have to’ be of top quality and work. well
together if the vehicle is to have really good braking.
Vehicles we design and test have top-quality
GM brake
parts in them, as your: Buick, does when it is new. When
you replace parts
of your braking system - for
example, when.your brake linings wear down and you
have-to have
new ones put in - be sure you get new
genuine
GM replacement parts. If you don’t, your
brakes may no longer work properly. For example,
if
someone puts in brake linings that are wrong for your
vehicle, the balance between
your front and rear brakes
can change, for the worse.
The braking performance
you’ve come to expect can change
in many other ways
if someone puts in the wrong replacement brake parts.
Battery
Every new Buick has a,Delco Freedom@ battery. You
never have.to add water
to one of these. When it’s time
for a new battery, we recommend a Delco Freedom@
battery. Get one that has the catalog number shown
on
the original battery’s label.
Vehicle Storage,
If you’re not going to drive your vehicle for 25 days or
more, take
off the black, negative (-) cable from the
battery. This
will help keep your battery from running
down.
Batteries have acid that can burn you and gat
that can explode. You can be badly hurt
if you
aren’t careful. See “Jump Starting” in the lndl
for tips on working around a battery without getting hurt.
Contact your dealer to learn how to prepare your vehicle
for longer storage periods.
264 -

I-
Halagen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or I
others could be injured. Take special care when
handling and
displssina of halogen bulbs. ll
Headlamp Bulb Replacement
2. Turn each of the access cover retainers 1/4 turn and
lift the cover off.

I
4. .Remove wjre connector from bulb by lifiingthe lock" -
tab and pulling it away .from the plastic base.

5. Bulb
I_ -. _I-
Replacement , . ..
. -.
j.! i I I. !
Install the bulb by putting the sriJall tab- (D) hto the J;: ~ I..' '
small notch in the lamb (E). PGt the 'retainer: on and. turn
. ..
it 1/4 tun clockwise (to the.right).'to lock it into place. Remove-the two Phillips @ head screws;
For .the right-side taillight, remove The housing that
covers the spare tire'. For the left-side taillight, open the
ldcking rear storage compartment.
267

. ,. , .. ., , ...
Unskrew .tht$wingnut. From outside the vehicle,,
carefully
pull the taillight assembly away from the body. Press the
bulb housing release lever and turn the housing
1/4.turn counter-clockwise (to the left) to remove it..
To remove the bulb, push it in and rotate it
counterclockwise(to the left).
Reverse
all the steps to reassemble the taillight housing.