1981 CHEVROLET MONTE CARLO air condition

Downloaded from www.Manualslib.com manuals search engine Air Selector Lever
The air selector lever regulates air flow from the heater, defroster and air
conditioning outlets. It also controls operation of the refrigeration compressor.
• OFF--In this position the blower doeS not operate . However , when the
vehicle is moving, air will enter the passenger compartment through the floor
air outlet.
• MAX (AIR COND)--Air from the p~ssengercompartment is· mixed with a
small amount of outside air, conditioned and discharged from the upper
outlets. This position with the
temperature lever in full COLD is used for
maximum cooling under conditions
of high temperatu re and humidity .
• NORM (AIR COND) --Outside air is conditioned as it passes through the
system and is discharged from the upper outlets. This position is used for
most air conditioning situations.
• BILEVEL (AIR COND)--Outside air is conditioned and directed out the upper
outlets PlUS the floor air outlet. A small amount of air also flows trom the
windshield defroster outlets.
This position provided comfort and keeps the
windshield clear under low fogging conditions .
• VENT (ECONOMY)--Outsid~,air is discharged from the upper outlets. This position is used in cool. to moderate weather when· conditioned air· is not
required. The air conditioning compressor is turned off.
• HEATER (ECONOMY)-'-Outside air is delivered from the floor air outlets
with a small amount from the windshield defroster outlets. This position is
used for most winter driving. The air conditioning compressor is turned off.
• DEF--Outside air is conditioned and delivered from the windshield defroster
outlets with a smail amount delivered from the floor air outlet. This position
is recommended for conditions
Of severe fogging and icing only.
Air Outlets
The instrument panel air outlets may be rotated or vanes turned to direct air flow in direction' desired.
For additional air flow a lap cooler is provided under the steering column. This outlet has vertical vanes and can be rotated up or down as desired . Under this
lap cooler is an outlet with a control that can
be moved to the IefI or right for
opening and closing , controlling the amount of air
to the floor from the bottom
of the outlet.
ELECTRO-CLEAR REAR WINDOW DEFOGGER
The optional defogger may be turned on after the engine is running by placing
the switch (on the instrument panel) in the
ON postlion . Power is indicated by a
green light. After the defogger has operated for a short time, the system will
automatically
shut off. If further defrosting or defogging is des ired, simply
actuate the switch again.
The defogger will not function if the ignition is off.
2-25

Downloaded from www.Manualslib.com manuals search engine Chevrolet's turbocharger incUles a "TlI'bo Control Center," which is an
electronic,
closed- loop, high energy spark control system that permits the use
of today's compression ratios with unleaded fuels. It works to control spark and
provide
good driveability. H automatically compensates for fuel octane,
atmospheric conditions,
load, and .other driving conditions, by continually monitoring engine detonation and adjusting the spark.
Are There Any Tricks To Driving A Turbocharged V-61
No, riot at all. Starting procedures are as covered on Page 2-8.
As with any normal engine, the turbocharged engine should not be run at
excessive
RPM immediately upon starting or shut down abruptly after running
at high
speeds.
Trailer
Towing: It should be noted that the Turbo V-6 engine uses advanced
electronic technology to provide a combination of performance and fuel
economy under most operating conditions, including driving in high-altitude
areas . Uke 'most V-6 engines, ~is su~abIe for pul~ng light-dutytrailers up to
450 kilograms (1,000 pounds) gross weight. However, the system was not
engineered for the rigors of towing
heavytraii for
specffic recommendations) .
Don't Attempt Do-tt-Yourself Fixes: The turbocharger has but a handful of
parts, but since it is precision-manufactured with some tolerances as fine as
1/1 ,000,000 of an inch, maintenance and repairs should be done by an
authorized Chevrolet dealer or other qualified service outlet which
regularly
does such servk:e.
Catch Trouble Before . It Becomes Major: The turbocharger is an integral part
of your engine and not ar\'add-on .device.1f you spot an oil leak or hear an
unusual sound coming from the turbocharger , take it
In for service immediately .
The trouble may be simple to correct, but if allowed to continue, may
necessitate a more costly repair.
Normaf Scheduled Maintenance -
with Two Exceptions: The recommended
maintenance for the turbocharged
V -6 engine is shown in the General Motors
Maintenance
Schedule found in the glove compartment of your Chevrolet. The
turbocharged engine requires basically the same maintenance as a regular V-6
with two ",xceptions :
Engine Oil Change -every 3,000 miles.
Oil Filter Change -every 3,000 miles .
2-33

Downloaded from www.Manualslib.com manuals search engine "the "TEMP" light comes on (or, if you have a 900lant temperature gage, the
gage needle goes into the warning zone) and your air conditioner is on, turn it
off.
If the "TEMP" light (or gage) comes on while you are stopped in traffic,
shift the transmission to
"N" (Neutral).
If the "TEMP" light doesn't go off (or the gage needle doesn't start to drop)
within a minute or two:
• Pull over to a safe Place ""d stop the vehicle. Set the parking brake and
shift to "P" (Park) 9r, with a manual transmission, shift to Neutral first, then
set the parking brake.
• DON'T TURN OFF THE ENGINE. INCREASE THE ENGINE SPEED until it
sounds like it's going about twice as fast as normal idle speed. Bring the
idle speed back to normal
after two or three minutes.
tfthe "TEMP" light still doesn't 90 off, (or the gage needle doesn't start to
drop),
NOW TURN OFF THE ENGINE and proceed as follows.
•
lift the engine hood. Look at the coolant level in the "see through" coolant
recovery tank. The coolant level. should be at or above the "Full Cold"
mark on the tank. If it looks like the coolant is boiling, wait until it stops
before proceeding. You should not need to remove the radiator cap to
check the coolant
level and. it can be dangerous if the coolant is still hot. See the following Caution.
CAUTION: To help avoid being burned:
"'-'''''''''i',",,;0-Fc:io'ffi)tcremoy'J~_ c;<)olant recovery tank cap if the coolant is boiling, and
• do not remove -the radiatorc:ap WhilethIit8ngine'-aUid:radiltor a,.Slili hot.
Scalding fluid and steamean be released under pressure it either cap is taken off too soon,
-;<
• If coolant level is low:
•
looklorleaks at the radiator hoses and connections, heater hoses and
connections,
r"diator,and water pump. See that the. fan belts are not
broken or off the pulleys an.d that the fan turns when the engine is started,
•
Add coolant to the recovery tahk.
If
the cQolant level in the recovery tank is althe correct lellel arid the "TEMP"
light (gage) still co"",s.dn,. air may be tr~ in the cooling system, This may
stop coolant from returning to the radiator. In this case, you may have to add
coolant directly to the radiator.
See "Coolant Replacement" under engine
cooling system
in "Service and Maintenance," Section 5 of this manual. Follow
steps 1 and 10. for the correct way to remove the radiator cap and add .coolant
to the radiator.
After the
"TEMP" light is out (or the gage needle is out of the warning zone),
resume driving at a reduced speed. Return to normal driving after about ten
minutes if the light does not come back
on (or the gage needle does not go
back into the warning zone).
3-4

Downloaded from www.Manualslib.com manuals search engine Underbody Maintenance
Corrosive materials. used for ice and snow removal and dust control can collect on the underbody. If these materials are not removed, accelerated corrosion
(rust)
can occur on underbody parts such as fuel lines, frame , floor pan, and
exhaust system even though they have been provided with corrosion
protection.
At least every spring, flush these materials from the underbody with plain
water .
Take care to clean well any areas where mud and other debris can
collect. Sedimentpacked in closed areas. of the frame should be loo~ened before being flushed. H desired, your authorized dealer can perform this service
for
you.
I
I
, NOTICE
TO
NEW CHEVROLET OWNERS
REGARDING
CHEMICAL PAINT SPOTTING
Chevrolet believes: that certamweatb'er and atmospheric condi­tions may create a chemical fallout whereby certain airborne pollutants -fall upon and attack _vehicle paint s. Occurrences have taken place primarily in the·-northeastem--se~boardarea."The" paint damagetaJees two forms: Blotchy, ringlet shaped discolora­
tions , and small irregular dark spots etched into the paint 'surfac e.
Paint spotting as a result of the fall~ut is not related to a de fect in paint materialsoE workmanshlp~For this reason, claims arising
from this condition are not considered to be warranty related.
Nevertheless . be_cause -Chew ,oiet shares the pride which our­_o wners lake_ in preserving and _ m.ain(aining the appearance of their vehicles, Chevrolet has authorized _ its dealers to repair, at no charge to .the owner , the surfac es of new vehicles damaged
by this fallout condition within 12 months or 20,000 kilometers (12,000 miles) of pUIchase , whichever ·comes fi~sf.
4·6

Downloaded from www.Manualslib.com manuals search engine COOL
WARM
Add just enough DEXRO~ II fluid to fill the transmission to the proper level. It
takes only 0.5 liter (one pint) to raise the level from "Add" to "Full" with a hot
transmission.
Automatic Transmission Drain Intervals
Change the transmission fluid and change the filter (or clean the screen) as
outlined
in Section A of the Maintenance Schedule folder.
ENGINE COOLING SYSTEM
Your vehicle has a coolant recovery system. Coolant in the system expands
with heat and overflows into the recovery tank. When the system cools down,
coolant is drawn back into the radiator.
The cooling system was
filled at the factory wrth a quality coolant that meets
GM
Spec~ication 1S99-M . The cooling ·system is designed to use coolant (a
mixture of water and ethylene glycol antifreeze) rather than plain water. The
coolant solution should be used year round.
It has many advantages, such as:
~ provides freezing protection down to -3rC (-34"F) "''''''<~. !'"","."" ' • provides boiling protection up to 12S"C (262"F),
• protects against rust and corrosio~in th~ cooling system,
• maintains the proper engine temperature for efficient operation and
emission control, and
• allows proper operation of the coolant temperature light or gage :
See Section A of the Maintenance Schedule folder to find out when the coolant
must
be ·replaced.
Cooling System Care
Check the c60ling system at regular intervals, such as during fuel stops . You usually do not need to remove the radiator cap to check the coolant level. Lift
the engine hood and look at the "see through" coolant recovery tank. When
the engine is
cold, the coolant level should be at the "Full Cold" mark on the
tank . When the engine has fully warmed . up, the level should be above the
"Full Cold" mark on the tank . If the coolantl6vel is low, remove the cap on the
coolant recovery tank. Add to the recovery tank enough of a 50/50 mixture of
water and a good quality ethylene glycol antifreeze to bring the
level up to the
proper mark. Put the cap back on the recovery tank.
Certain conditions, such
as air trapped in the system, may affect the coolant
level in the radiator. You should check"the coolant level in the radiator at the
time you change the engine
oil and when the engine Is cold. Follow.taps I, S,
9, and 10 under "Coolant Repfacement" for the correct way to remove the
radiator cap and add coolant.
5-6

Downloaded from www.Manualslib.com manuals search engine If you have to add coolant more than four times a year (either to the recovery
tank or to the radiator), see your dealer for a cooling system check.
NOTICE: If you use the proper quality antifreeze, there is no· need to add extra inhihitorsor additiveswtlich claim to improve-the system. They may be harmful to the proper operation of the system.
Cooling' System Service
The cooling system should be serviced at the intervals specified in Section A of
the Maintenance Schedule folder as follows:
1. Wash the radiator cap and filler neck with clean water. See step 1 of "Coolant Replacement" for the proper way to remove the radiator cap.
2. Check the coolant level in the radiator and have it tested for freeze
protection.
Add ethylene glycol antifreeze, if needed, to maintain freeze
protection at-3JOC (~$4°f).
3. Have the cooling system and radiator cap tested for a pressure capacity of 105. kPa (15psi). (The pressure cantle anywhere from 95 kPa, or 14 psi,
to 120
kPa, or 18 psi.) If a replacement cap is needed, use an AC cap, or
an equivalent cap, designed fof coolant recovery systems and specffied for
your model.
4. Tighten all radiator hose clamps ang heater hose clamps and inspect all
hoses. Replace the hOSes if they are swollen, "checked" or otherwise worn.
NOTICE: Take care when tightening the hose clamps at the radiator. Overtightening could bend or collapse the radiator fittings.
5. Clean the front of the radiator core and air conditioning condenser to
remove dirt and other objects. Also clean the auxiliary engine oil andlor
transmission fluid cooler if the vehicle has them.
Coolant Replacernent
At the intervals specffied in Section A of the Maintenance Schedule folder, flush
9r1d refill the cooling system as follows:
1. Remove the radiator cap when the engine is cool:
•
Turn the cap slowly to the left until it reaches a "stop." Do not press
down while turning the
cap.
• Wait until any remaining pressure (indicated by a hissing sound) is
relieved, then press down on the cap and continue turning it to the left.
CAUTION: To help avoid the dangarm being burned. donotrem_ove the radiator cap While the engine' and radiator are. still. hot. Scaldingftukland steam ean be blown out under ~re It the cap is taken off too SOOf1.
2. When the cap is removed, run the engine until the upper rad.iator hose is
hot.
(ThiS shows that th~ thermostat is open and the coolant is flowing
through the system.)
3. Stop the engine. Open Ihe,actialor drain valVE! to drain the coolant. Drainage may be speeded by removing the drain plugs in the block, ff so
equipped.
5-7

Downloaded from www.Manualslib.com manuals search engine Rear Axle, Standard
See Section A of the Maintenance Schedule folder to find out how often the
lubricant level should be checked. If you pull a trailer, the lubricant must be changed as recommended in the Maintenance.Schedule folder.
Add lubricant, if needed, to fill to the level of the filler plug hole on the
passenger's side of the
differential case. Use SAE BOW GL-S or SAE BOW·90
GL-S gear lubricant. (For those vehicles driven in Canada, use SAE BOW GL-S gear lubricant.) You can also use special gear lubricant Part No. GM 10S2271
or 10S2272. You can buy these products from your dealer.
Rear Axle--!-imited-Slip Differential
See Section A of the Maintenance Schedule folder to find out when the lubricant should be drained and refilled.
Refill to the level of the filler plug hole with special gear lubricant part No. GM
1052271 or 10S2272. You can buy these products from your authorized dealer.
Power Steering System
Check the fluid level in the power steering pump as recommended in the
Maintenance Schedule folder.
Add GM Power Steering Fluid (Part Number GM 1 OSOOI7) as needed:
"HOT"
"COLO"
"ADD"'"
• If the fluid is warmed up (about 66'C or IS0'F --hot to the touch), the
fluid level should be between the "Hot" and "Cold" marks on the filler cap
indicator.
• If cool (about 21 'C or 70'F), the fluid level should be between the "Add" and "Cold" marks.
This
fluid does not need periodic changing.
Air Cleaner Element
When replacement afair cleaner filter.;element is necessary. an AC air filter element is recommended.
See your Maintenance Schedule for change intervals. Operation of vehicle in
dusty areas will',necessitate more.frequentreplacernent.' Your dealer. can be of
assistance in determining the properreplacement.frequency for the conditions under which you operate your vehicle.
S-9

Downloaded from www.Manualslib.com manuals search engine Air Conditioning
Your vehicle's air conditioning system will not operate below ambient
temperatures of 4'C (40"F) regardless of control position. .
See your
dealer immediately H you suspect the system is not performing as it
should.
TIRES
CAUTION: T~\'reduce the 'risk of lose ~VehiCIe control and Person.1 injury:
• TTres MUST BE prOperly Inflated, .nd your vehicle MUST NOT BE overkMtded (see 1M r.e PtacM'.d _1Oc_.c:t on the driver's door).
• Voui" vehicle MUST NOT BE operated cti, lpeedsfaster than 85 mph (140 ~m/h) unless it Is equipped with poIi~ pursuit tires or equivalent high-speed capability ti,es.-regardhtss 01 the ~ speed lmtt.
For more Safety InfOrmation. ~ the rest or this " TIre" section.
The tires installed on your vehicle are engineered to provide a proper balance
of these performance characteristics under normal driving conditions.
• Endurance
• Handling
• Noise
• Ride
• Road Hazard Resistance
• Rolling Resi.stance
• Traction
• Tread Mile'age"' •... .... <.
This section has some tips on how you can get the most benem from these tires. '
Vehicle Loading
The tires on your vehicle will perform well at all normal loads when inflated as
recommended on the . Tire Placard (located on the driver's door of your vehicle) . Do not load your vehicle beyond the load Umits (total kilograms or
pounds) shown
on the·TIre Placard . The placard. tells you the design limits of
the vehicle, not
Just of the tires.
VEt«:lf CAP.l.CIl" DCGuI' ... " ,COLO Tff\E ffiESSURE ... _, ,., " •... 10'" ,_, "' ...
SPAR{ HR£
",,! " 1-::.:::(' 1 • SEE O~ S ~ANu ... i. FOR "'OI)IJ lQtjA,l INf-QAMATioN
5·11