maintenance schedule Acura MDX 2007 User Guide
Page 457 of 479
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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Page 474 of 479
Lights....................
Bulb Replacement .397
.......................................
Indicator .63
.......................................
Interior .157
.......................................
Parking .118
.............................
Load Limit . 325, 356
....
LOCK (Ignition Key Position) .129
Locks
.....
Anti-thef t Steering Column .129
............................
Fuel Fill Door .317
..................................
Glove Box .162
..................
Lockout Prevention .131
...............................
Power Door .130
..............................
Tailgate . 131, 132
........................
Low Coolant Level .320
.........................
Low Fuel Indicator .71
...
Low Oil Pressure Indicator . 65, 430
...
Lubricant Specif ications Chart .446
............
Luggage, Storing (cargo) .324
..................................
Maintenance .373
Owner’s Maintenance ...................................
Checks .381
........................................
Minder .375 ................................
Record . 383, 384
..........................................
Saf ety .374
....................................
Schedule .382
.......
Malf unction Indicator Lamp .431
...........
Memory, Driving Position .155
.............................
Message Display .80
..........................
Message Indicator .68
...............................
Meters, Gauges .72
........................
Mirrors, Adjusting .153
.................................
Modif ications .323
...............
Modif ying Your Vehicle .323
.......................................
Moonroof .150
.............
Multi-Inf ormation Display .73
...................
Neutral Gear Position .334
..................
New Vehicle Break-in .316
...................
NOTICE, Explanation of .i
...............
Numbers, Identif ication .444
...
Octane Requirement, Gasoline .316
.........................................
Odometer .75
...............................
Odometer, Trip .75 ....................
Of f -Highway Driving .369
...................
Of f -Road Precautions .369
Oil
........................
Change, How to .388
......................
Change, When to .375
......................
Checking Engine .320
...............................
Lif e, Engine .375
..............
Pressure Indicator . 65, 430
Selecting Proper Viscosity ......................................
Chart .387
.........
ON (Ignition Key Position) .129
............................
Outside Mirrors .153
.....................
Outside Temperature .76
....................
Overheating, Engine .428
....
Owner’s Maintenance Checks .381
.........................
Oxygenated Fuels .316
............
Panel Brightness Control .123
........................
Park Gear Position .334
...........................................
Parking .342
...............................
Parking Brake .151
Parking Brake and Brake
.................
System Indicator . 65, 432
...............................
Parking Lights .118
Index
N
O P
M
VI
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