engine Acura TL 2004 Repair Manual

Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning indicators.
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ).
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn of f the
engine. There is a mechanical
problem that needs to be repaired
bef ore you can continue driving
(seeon page
).
This indicator should never
come on when the engine is
running. If it starts f lashing
or stays on, the oil pressure has
dropped very low or lost pressure.
Serious engine damage is possible
and you should take immediate
action. Let the vehicle sit f or a minute.
Open the hood, and check the oil
level (see page ). An engine
very low on oil can lose pressure
during cornering and other driving
maneuvers. If the charging system
indicator comes on brightly
when the engine is running,
the battery is not being charged.
Immediately turn of f all electrical
accessories. Try not to use other
electrically operated controls such as
the power windows. Keep the engine
running; starting the engine will
discharge the battery rapidly.
Go to a service station or garage
where you can get technical
assistance.
1.
2.
3.
4.
167
204
249
L ow Oil Pressure Indicator, Charging System Indicator
T aking Care of t he Unexpect ed
L ow Oil Pressure Indicator
Emergency T owingCharging System Indicator
242
NOTICE:
Running the engine with low
oil pressure can cause serious
mechanical damage almost immediately.
Turn of f the engine as soon as you can
saf ely get the vehicle stopped.

To check if they are set, turn the
ignition to ON (II), without starting
the engine. The Malf unction
Indicator Lamp will come on f or 20
seconds. If it then goes of f , the
readiness codes are set. If it blinks 5
times, the readiness codes are not
set. If possible, do not take your
vehicle f or a state emissions test
until the readiness codes are set.
Refer to State Emissions Testing for
more information (see page ).
If the indicator comes on
while driving, it means one
of the engine’s emissions
control systems may have a problem.
Even though you may f eel no
dif f erence in your vehicle’s
perf ormance, it can reduce your f uel
economy and cause increased
emissions. Continued operation may
cause serious damage.
If you have recently ref ueled your
vehicle, the indicator coming on
could be a loose or missing f uel f ill
cap. Tighten the cap until it clicks at
least three times. Tightening the cap
will not turn the indicator of f
immediately; it takes at least three
days of normal driving. If the indicator comes on repeatedly,
even though it may go of f as you
continue driving, have the vehicle
checked by the dealer as soon as
possible.
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics f or the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed.If your vehicle battery has been
disconnected or gone dead, these
codes are erased. If takes at least
three days of normal driving to set
the codes again.
263
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
Readiness Code
243
NOTICE:If you keep driving with the
Malf unction Indicator Lamp on, you
can damage your vehicle’s emission
controls and the engine. Those repairs
may not be covered by your vehicle’s
warranties.

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There are three popular types of
prof essional towing equipment.
Shif t the transmission to Neutral.
ShifttoD,thentoN.
Turn of f the engine.
The tow
truck uses metal cables with hooks
on the ends. These hooks go around
parts of the f rame or suspension and
the cables lif t that end of the vehicle
of f the ground. Your vehicle’s sus-
pension and body can be seriously
damaged.
If your vehicle needs to be towed,
call a prof essional towing service or
organization. Never tow your vehicle
behind another vehicle with just a
rope or chain. It is very dangerous.
The operator
loads your vehicle on the back of a
truck.
The tow
truck uses two pivoting arms that go
under the tires (f ront or rear) and lif t
them of f the ground. The other two
tires remain on the ground. If your Acura cannot be transported
by f lat-bed, it should be towed by
wheel-lif t equipment with the f ront
wheels of f the ground. If , due to
damage, your vehicle must be towed
with the f ront wheels on the ground,
do the f ollowing: Release the parking brake.
Start the engine. Release the parking brake.
Automatic Transmission:
6-speed Manual Transmission:
Sling-t ype Equipment
Flat -bed Equipment Wheel-lif t Equipment
T his method of towing
is unacceptable.
T his is the best way to
transport your A cura.
T his is
an acceptable way to tow your
Acura.
Emergency T owing
T aking Care of t he Unexpect ed249
NOTICE: Improper towing preparation
will damage the transmission. Follow
the above procedure exactly. If you
cannot shif t the transmission or start
the engine (automatic transmission),
your vehicle must be transported with
the f ront wheels of f the ground.

Your vehicle 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
vehicle f or warranty purposes. It is
also necessary f or licensing and
insuring your vehicle. The easiest
placetofindtheVINisonaplate
fastened to the top of the dashboard.
Youcanseeitbylookingthrough
the windshield on the driver’s side. It
is also on the Certification label at-
tached to the driver’s doorjamb, and
is stamped on the engine com-
partment bulkhead. The VIN is also
provided in bar code on the
Certif ication label.
Identif ication Numbers
T echnical Inf ormation254
VEHICLE IDENTIFICATION NUMBERCERTIFICATION LABEL

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