2007 Acura MDX engine

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Specif ications
446
Dimensions
Capacities
Air Conditioning Weights 1.93 US gal (7.3
)
2.43 US gal (9.2)
4.5 US qt (4.3
)
4.2 US qt (4.0
)
5.3 US qt (5.0
)
3.0 US qt (2.8)
8.6 US qt (8.1)
190.7 in (4,844 mm)
77.0 in (1,955 mm)
68.2 in (1,733 mm)
21.00 US gal (79.5
)
Length
Width
Height
Wheelbase
Track 108.3 in (2,750 mm)
67.7 in (1,720 mm)
67.5 in (1,715 mm)
See the tire information label atta-
ched to the driver’s doorjamb. 10,053 lbs (4,560 kg) Fuel tank
Engine
coolant
Engine oil
Automatic
transmission
fluid
Rear
differential
fluid
Transfer
assembly
fluid
Windshield
washer
reservoir
2.6 US qt (2.5
)
2.9 US qt (2.7)
0.4 US qt (0.4
)
0.4 US qt (0.4)
4.2 US qt (4.0
)
6.7 US qt (6.3)
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
The GCWR must be reduced 2 percent for every 1,000 feet (305
meters) of elevation.
Refrigerant type
Charge quantity
Lubricant type HFC-134a (R-134a)
21.2 22.9 oz (600 650 g) ND-OIL8
Gross vehicle weight rating
Gross combined weight
rating (GCWR) Approx.
Front
Rear
1:
2:U.S. vehicles
Canadian
vehicles Change
Total
Change
Including
filter
Without
filter
Total
Change
Total
Change
Total
Change
Total
1:
1 1
2
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Specifications
T
echnical Inf ormat ion
447
Battery Engine Fuses
Tires Alignment
Lights
60 W
12 V
12 V 35 W
12 V 5 W
12 V 5 W
8W
5W
2W
3.4 W
12
V
12 V
12 V
12 V
The low beam headlights are high voltage discharged type.
Replacement of a low beam headlight bulb should be performed by
your dealer.
Capacity 12 V Type
BorexStroke
Displacement
Compression
ratio
Spark plugs 11.0
: 1
223.5
cu-in (3,664 cm
)
3.54
x 3.78 in (90.0 x 96.0 mm)
Water
cooled 4-stroke SOHC
VTEC V6 gaso line engine
Interior
Rear
Under-hood
12
V
12
V
21 W
3CP
SKJ20DR-M11
12
V 3 CP
12
V 18 W
12
V 3 CP
21
W
12 V
12
V 3.4 W
55
W
12 V
12
V 3 CP
60
W
12 V
12 V 65
AH/5 HR
76 AH/20 HR
Size
Pressure
60 psi (420 kPa , 4.2 kgf/cm
)
32
psi (220 kPa , 2.2 kgf/cm)
T165/80D17
104M
P255/55R18
104H
Toe-in
Camber
Caster
4°12’0°30’ 0°30’
0.08
in (2.0 mm)
0.00
in (0.0 mm)
Headlights
Daytime
running light
Front side marker lights
Front turn signal lights
Parking lights
Fog light
Front foot lights
Rear turn signal lights
Rear side marker light
Backup lights
License plate lights
Individual map lights
Cargo area light
Tailgate light
Vanity mirror light
Door light IZFR6K-11
See page442or the fuse label
attached to the inside of the fuse
box lid.
See page441or the fuse label
attached to the inside of the fuse
box lid.
See page440and441or the fuse
box cover.
Front/Rear
Spare
Front/Rear
Spare
Front
Rear
Front
Rear
Front
Front
Rear High
Low
: (H11) (HB3)
(D2S)
(HB3)
DENSO:
NGK:IN
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Î
ÎThe burning of gasoline in your
vehicl e’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating from 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 form 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 for 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
Canada, 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 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 .
382
Emissions Cont rols
The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Technical Inf ormation
453
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The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our systems work
together to control the engine’s
combustion and minimize the
amount of HC, CO, and NOx that
come 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 f uel 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
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion. 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.
2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
454
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The three way catalytic converter
contains precious metals that 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
combustible materials that come
near it. Park your vehicle away from
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 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. Keep the engine well maintained.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Three Way Catalytic Converter
Technical Inf ormation
455
THREE WAY CATALYTIC CONVERTER
WARM UP THREE WAY CATALYTIC
CONVERTER
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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 retested within the
next two or three days, you can
condition the vehicle f or retesting by
doing the f ollowing.
Make sure the gas tank is nearly,
but not completely, f ull (around
3/4). 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 1/4 of the
scale (about 3 minutes).
Make sure the vehicle has been
parked with the engine of f f or 6
hours or more.
Make sure the ambient
temperature is between 40° and
95°F.
State Emissions T esting
T esting of Readiness Codes
456
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Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
f or at least 20 minutes. Drive on
the highway in D. Do not use the
cruise control. When traf f ic allows,
drive f or 90 seconds without
moving the accelerator pedal.
(Vehicle speed may vary slightly;
this is okay.) If you cannot do this
f or a continuous 90 seconds
because of traf f ic conditions, drive
f or at least 30 seconds, then repeat
it two more times (f or a total of 90
seconds).Make sure the vehicle has been
parked with the engine off for 30
minutes.
If the testing f acility determines the
readiness codes are still not set, see
your dealer.
Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
State Emissions T esting
Technical Inf ormation
457
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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:
464
NOTE: Dealers and Companies please provide dealer or company name,
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