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 Clean Air Act

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

 Crankcase Emissions Control System

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

 Evaporative Emissions Control System

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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 Pressure Test

Special Tools Required A/T clutch pressure gauge set 07406-0020400 or 07406-0020401 A/T pressure hose, 2,210 mm 07MAJ-PY4011A A/T pressure hose adapter 07MAJ-PY40120 1. Make sure the transmission fluid is filled to the proper level. 2. 4WD model: Raise the vehicle on a lift, make sure it is s

 Rear Differential

Special Tools Holder Handle Oil Seal Driver Attachment, 78 x 80 mm Attachment, 52 x 55 mm Companion Flange Holder Driver Component Location Index REAR DIFFERENTIAL MOUNT Replacement REAR DIFFERENTIAL ASSEMBLY Removal Disassembly Reassembly Installation REAR DIFFERENT

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