2004 Acura TL engine

The Engine Number is stamped into
the engine block.
The Transmission Number is on a
label on top of the transmission.
Identif ication Numbers
T echnical Inf ormation255
ENGINE NUMBERTRANSMISSION
NUMBER

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Specif ications
T echnical Inf ormation256
Dimensions
Weights
Air Conditioning
Capacities Capacities
186.2 in (4,730 mm)
72.2 in (1,835 mm)
56.7 in (1,441 mm)
107.9 in (2,740 mm)
62.1 in (1,577 mm)
62.0 in (1,576 mm)
HFC-134a (R-134a)
17.6 19.4 oz (500 550 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
Manual
transmission
fluid
Windshield
washer
reservoir
2.6 US qt (2.5
)
7.6 US qt (7.2
)
3.1 US qt (2.9)
5.3 US qt (5.0)
4.2 US qt (4.0
)
4.5 US qt (4.3
)
Including the coolant in the reserve tank and that remaining in the
engine.
Reserve tank capacity: 0.16 US gal (0.6
)
Excluding the oil remaining in the engine. 2.3 US qt (2.2
)
2.6 US qt (2.5)
4.8 US qt (4.5
)
2.14 US gal (8.1
)
2.09 US gal (7.9)
1.66 US gal (6.3
)
1.69 US gal (6.4)
Approx.
Front
Rear
1:
2:Change
Manual
Automatic
Total Manual
Automatic
Change Including
filter
Without
filter
Total
Change
Total
Change
Total
U.S. Vehicle
Canada Vehicle
17.09 US gal (64.7)
1
2

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Specif ications
T echnical Inf ormation257
Lights
Battery
Fuses Engine
Alignment
Tires
3.50 x 3.39 in (89.0 x 86.0 mm)
12 V 21/5 W
195.8 cu-in (3,210 cm
)
Water cooled 4-stroke
SOHC VTEC 6-cylinder (V6), gasoline engine
12 V 21 W 12 V 51 W (HB4)
DRL (Canadian models)
Front turn signal/Side marker/
Parking lights
Fog Lights
Rear turn signal lights
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 V21 CP
3CP
5W
5W
2CP
5W
4CP
Capacity 65 AH/20 HR
Interior
Under-hood 12 V51 W (HB3)
12 V
11 : 1
See page 248or the fuse label
attached to the inside of the fuse
box door on each side of the
dashboard.
See page 247or the fuse box
cover. Type
BorexStroke
Displacement
Compression ratio
Spark plugs
Toe-in
Camber
Caster
0.00 in (0.0 mm)
0.08 in (2.0 mm)
0°30’
1°00’
3°17’
P235/45R17 93W 235/45R17 93W IZFR6K-11
SKJ20DR-M11
35 psi (240 kPa , 2.4 kgf/cm
)
32 psi (220 kPa , 2.2 kgf/cm)
32 psi (220 kPa , 2.2 kgf/cm)
60 psi (420 kPa , 4.2 kgf/cm)
Size
Pressure
T145/70R17 96M T135/80R16 101M
Front
Rear
Front
Rear
Front
NGK:
DENSO:
Front/Rear
Spare
Front
Rear
Spare A/T Vehicles:
M/T Vehicles:
All season tire
Summer tire
Vehicles with manual transmission
Vehicles with automatic transmission
1:
2:
3:
4:
1
2
34

Î
ÎThe burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx) and hydrocarbons (HC).
Gasoline evaporating f rom the tank
also produces hydrocarbons. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute 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.
In Canada, Acura vehicles comply
with the Canadian Motor Vehicle
Saf ety Standards (CMVSS) f or
Emissions valid at the time they are
manuf actured.
Your vehicle has a Positive
Crankcase Ventilation System. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The Positive Crank-
case 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 .
Emissions Cont rols
T echnical Inf ormation
The Clean Air Act
Crankcase Emissions Control
System
Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
260

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 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
operating 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 ), nitrogen
(N ), and water vapor.
The emissions control systems are
designed and certif ied to work
together 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.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual f or more informa-
tion.
2
2
Emissions Cont rols
T echnical Inf ormation
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
261

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.
Parkyourvehicleawayfromhigh
grass, dry leaves, or other f lamma-
bles.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 vehicle’s three way
catalytic converter.
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. Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly. Keep the engine tuned-up.
Three Way Catalytic Converter
T echnical Inf ormation262
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC CONVERTER

Make sure the gas tank is nearly,
but not completely, f ull (around
3/4).
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.
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 vehicle has been
parked with the engine of f f or 8
hours or more. Keep the vehicle in Park
(automatic transmission) or
Neutral (manual transmission).
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).
CONT INUED
St at e Emissions T est ing
T esting of Readiness Codes
T echnical Inf ormation263

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#
) This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand.
This manual complements the Service Manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your vehicle.
This manual describes the procedures involved in the
replacement of damaged body parts.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
270
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