2003 Acura TL engine

Your car has several identif ying
numbers located in various places.
The Vehicle Identif ication Number
(VIN) is the 17-digit number your
Acura dealer uses to register your
car f or warranty purposes. It is also
necessary f or licensing and insuring
your car. The easiest place to find
the VIN is on a plate fastened to the
top of the dashboard. You can see it
by looking through the windshield
on the driver’s side. It is also on the
Certification label attached to the
driver’s doorjamb, and is stamped on
the engine compartment bulkhead.
The VIN is also provided in bar code
on the Certification label.
Identif ication Numbers
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C CEER
RT TI
IFFI ICCA A T
TI
IOON N L
LAA B
BEEL
L
V
V
E
EH
H I
ICCL LEE I
IDD E
EN
NT TI
IFFI ICCA A T
TI
IOON N N
NUUMM B
BEER
R

The Transmission Number is on a
label on top of the transmission. The Engine Number is stamped into
the engine block. It is on the f ront.
Identif ication Numbers
T echnical Inf ormation317
A AU
UT TO
OM M A
AT
TI
ICC T
TR
RA A N
NS SMM I
ISSS SIIOON N N
NUUMM B
BEER
R
E
E
N
NG GIINNE E N
NUUMM B
BEER
R

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Î
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Specif ications
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Dimensions
Weights
Air Conditioning
Capacities Capacities
192.9 in (4,900 mm)
70.3 in (1,785 mm)
55.9 in (1,420 mm)
108.1 in (2,745 mm)
61.2 in (1,555 mm)
60.4 in (1,535 mm) 1.48 US gal (5.6, 1.23 Imp gal)
1.98 US gal (7.5, 1.65 Imp gal)
4.6 US qt (4.4
, 3.9 Imp qt)
4.2 US qt (4.0
, 3.5 Imp qt)
5.3 US qt (5.0
, 4.4 Imp qt)
3.1 US qt (2.9, 2.6 Imp qt)
7.6 US qt (7.2, 6.3 Imp qt)
2.6 US qt (2.5
, 2.2 Imp qt)
4.8 US qt (4.5, 4.0 Imp qt)
Including the coolant in the reserve tank and that remaining in the
engine.
Reserve tank capacity: 0.16 US gal (0.6
, 0.13 Imp gal)
Excluding the oil remaining in the engine.
HFC-134a (R-134a)
25 27 oz (700 750 g) ND-OIL8
Length
Width
Height
Wheelbase
Track
Gross vehicle weight rating See the certification label attached
to the driver’s doorjamb.
Refrigerant type
Charge quantity
Lubricant type
Fuel tank Engine
coolant
Engine oil
Automatic
transmission
fluid
Windshield
washer
reservoir
Approx.
Front
Rear
Change
Total
Change
Including
filter
Without
filter
Total
Change
Total
U.S. Cars
Canada Cars
1:
2:17.17 US gal (65.0, 14.30 Imp gal)
1
2

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Specif ications
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Fuses Battery Lights
Engine
Alignment
Tires3.50 x 3.39 in (89.0 x 86.0 mm)
12 V 60 W (HB3)
12 V 24/2.2 CP
195.8 cu-in (3,210 cm
)
9.8 : 1
Water cooled 4-stroke
SOHC VTEC 6-cylinder (V6), gasoline engine
Interior
Under-hood Capacity 12 V 65 AH/20 HR
Headlights
Front turn signal/Side marker/
Parking lights
Fog Lights
Rear turn signal lights
Stop/Taillights
High-mount brake light
Back-up lights
License plate light
Ceiling light
Trunk light
Door courtesy lights
Vanity mirror lights
Spotlights
12 V 12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
4CP
1.1 W
2CP
5W
7W
3CP
18 W
21 W
21/5 W
21 W Type
BorexStroke
Displacement
Compression ratio
Spark plugs
10.5 : 1
12 V 51 W (HB4)
Toe-in
Camber
Caster
Size
Pressure 3°00’
0°30’0°
0.08 in (2.0 mm) 0.00 in (0.0 mm)
60 psi (420 kPa , 4.2 kgf/cm
)
32 psi (220 kPa , 2.2 kgf/cm)
T135/80R16 101M P215/50R17 93V
P205/60R16 91V
See page 310or the fuse box
cover. See spark plug maintenance
section page
252.
See page 311or the fuse label
attached to the inside of the fuse
box door on each side of the
dashboard. Front
Rear
Front
Rear
Front
(High beam)
Low beam headlight bulbs are a type of high voltage discharge tube. Front/Rear
Spare
Front/Rear
Spare
1 : Premium model
1 : Premium model 2 : Type-S
2 : Type-S
2
1
2
1

Î
ÎThe burning of gasoline in your car’s
engine produces several byproducts.
Some of these are carbon monoxide
(CO), oxides of nitrogen (NOx) and
hydrocarbons (HC). Gasoline
evaporating from the tank also
produces hydrocarbons. Controlling
the production of NOx, CO, and HC
is important to the environment.
Under certain conditions of sunlight
and climate, NOx and HC react to
f orm photochemical ‘‘smog.’’ Carbon
monoxide does not contribute to
smog creation, but it is a poisonous
gas. The United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
Scheduled maintenance is on page
.
In Canada, Acura vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canadaatthetimetheyare
manuf actured.
Your car has a Positive Crankcase
Ventilation System. This keeps
gasses that build up in the engine’s
crankcase from going into the
atmosphere. The Positive Crankcase Ventilation valve routes them from
the crankcase back to the intake
manif old. They are then drawn into
the engine and burned.
As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
The Onboard Ref ueling Vapor
Recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f .
224
The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
T echnical Inf ormation
Emissions Cont rols
324

The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Three Way
Catalytic Converter. These four
systems work together to control the
engine’s combustion and minimize
the amount of HC, CO, and NOx that
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.The emissions control systems are
covered by warranties separate from
the rest of your car. Read your
warranty manual f or more informa-
tion.
The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Powertrain Control Module
(PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how
much f uel to inject under all operat-
ing conditions. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO and NOx produced.
The Exhaust Gas Recirculation
(EGR) system takes some of the
exhaust gas and routes it back into
the intake manif old. Adding exhaust
gas to the air/f uel mixture reduces
the amount of NOx produced when
the f uel is burned.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), dinitrogen
(N ), and water vapor.
The emissions control systems are
designed and certif ied to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation325

Keep the engine tuned-up.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective.
The three way catalytic converter
contains platinum, palladium and
rhodium. These metals serve as
catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Acura part
or its equivalent.
The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on f ire any com-
bustible materials that come near it.
Park your car away f rom high grass,
dry leaves, or other f lammables.
A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. Follow these guidelines to
protect your car’s three way catalytic
converter. Have your car diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
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T T
H
H R
REEE
E W
WA AY
Y C
CAA T
TA
A L
LYYT TI
ICC C
COON NVVE
ER
RT TE
ER
R

CONT INUED
If you take your vehicle f or a state
emissions test shortly af ter the
battery has been disconnected or
gone dead, it may not pass the test.
This is because of certain ‘‘readiness
codes’’ that must be set in the on-
board diagnostics f or the emissions
systems. These codes are erased
when the battery is disconnected,
and set again only after several days
of driving under a variety of
conditions.If the testing f acility determines that
the readiness codes are not set, you
will be requested to return at a later
date to complete the test. If you must
get the vehicle re-tested within the
next two or three days, you can
condition the vehicle for re-testing
by doing the f ollowing.
Make sure the gas tank is nearly,
but not completely, f ull (around
3/4).
Make sure the vehicle has been
parked with the engine of f f or 8
hours or more.
Make sure the ambient
temperature is between 20° and
95°F. Without touching the accelerator
pedal, start the engine and let it
idle f or 20 seconds.
Keep the vehicle in Park.
Increase the engine speed to 2,000
rpm and hold it there until the
temperature gauge rises to at least
1/4of thescale(approximately3
minutes).
T echnical Inf ormation
St at e Emissions T est ing
T esting of Readiness Codes
327