Honda CR-V: Emissions Controls
The burning of gasoline in your
vehicle’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 form photochemical ‘‘smog.’’
Carbon monoxide does not contribute
to smog creation, but it is a
poisonous gas.
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The United States Clean Air Act*
sets standards for automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
work and what to do to
Your vehicle 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
As gasoline evaporates in the fuel
tank, an evaporative emissions
control canister filled with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is off. After
the en
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If equipped
The moonroof can be tilted up in the
back for ventilation, or it can be slid
back into the roof. Use the switch on
the front ceiling to operate the
moonroof. You must turn the
ignition switch to the ON (II)
position to operate the moonroof.
To tilt up the moonroof, push
Inspection
1. Set the dial indicator (A) on the companion flange
(B).
2. Measure the transfer gear backlash.
Standard: 0.06-0.16 mm (0.02-0.06 in.)
3. Secure the transfer housing (A) in a bench vise (B)
with soft jaws. To prevent damage to the transfer
housing, always use soft jaws or equivalent
m
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