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honda crv fuel system evaporator canister

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Honda Navigation System Information and DVD Information and Inspection Manual

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REVISION SUMMARY •Under BACKGROUND, more sources for navigation service and user information are listed. •Under DVD LABEL COLOR IDENTIFICATION BY MODEL, the Latest DVD Version available is updated. •Under REPLACING THE NAVIGATION CONTROL UNIT AND TRANSFERRING THE NAVIGATION DVD, a step was added to Save Users Memory when replacing the navigation control unit. •Under ENTERING THE ANTI-THEFT CODE, the instructions about obtaining the serial number from a navigation unit without removing it were clarified. •Under NAVIGATION SYSTEM PLATFORMS, HFL was added to the list of Distinguishing Features . BACKGROUND Use this information to avoid possible customer dissatisfaction issues caused by incorrect or outdated DVD installation. For more information about the navigation system and its operation, refer to the following resources: •Service Manual – Printed or on ISIS •Quick Start Guide •Online University – Use the keyword NAVI . •Navigation System Manual – Besides the one that comes with the vehicle, the navigation system manual is also available online. Select SEARCH BY PUBLICATION , select Consumer Information , select your applicable vehicle, then select Navigation Manual from the list. •Service Bulletins – Use the keyword NAVI . •ETM (electrical troubleshooting manual) This bulletin provides the following navigation system DVD service information: •DVD label color identification by model •Earliest DVD version application for each model •How to identify navigation DVD versions •Checking a DVD for damage •Ordering a DVD •Navigation DVD stocking concerns •DVD handling and cleaning •Installing a navigation DVD •Precaution on customer “sneak previews” of a newer navigation DVD version •Answering customer questions about navigation coverage and POI (point of interest) •Pitfalls when interchanging navigation DVD/parts during diagnosis •Replacing the navigation control unit and transferring the navigation DVD •Entering the anti-theft code •Navigation system platforms VEHICLES AFFECTED • 2003-09 Accord • 2005-07 Accord Hybrid • 2006-09 Civic • 2006-09 Civic Hybrid • 2007-09 CR-V • 2009 Element • 2009 Fit • 2000-09 Odyssey • 2003-09 Pilot • 2006-09 Ridgeline WARRANTY CLAIM INFORMATION None. This service bulletin is for information only. Refer to the flat rate manual whenever servicing or repairing the navigation system

1984-1995 Honda Accord/Prelude In­Tank Fuel Pumps TEST/REPAIR MANUAL

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Carbureted Fuel System GENERAL INFORMATION On these vehicles, the engine management system is considered part of the emission control system. The major components include the carburetor(s), feedback control system, the air injection system, a throttle control system and the EGR system. The system consists of sensors and switches that feed information to the Electronic Control Unit (ECU), which will then operate several solenoid valves to maintain the ideal air/fuel ratio under all conditions. As useful as the tests found in this section are, the first step in repair or service to engine management systems is still to gain as much information as possible about the problem; when and under what conditions it occurs. At highway speed? At idle only? Only under heavy load or hard acceleration? Wet weather? Defining the problem will eliminate many systems from consideration and possibly point to the affected system. Before diving into an extended electrical diagnosis, take the time to review the basics. Check every vacuum line for cracks or leaks. Check every electrical connector for corrosion or loose pins. Quite often, simply unplugging and reconnecting a connector will break up corrosion on the pins and restore the circuit. Watch out for poor grounds, particularly if the car has experienced major bodywork. COMPONENT TESTING Air Injection System The purpose of this system is to supply oxygen to the exhaust stream at a point in the exhaust manifold that is hot enough to burn off some of the hydrocarbon emissions. The main component is an air suction valve. The valve is spring loaded to stay closed, with engine vacuum supplied to a diaphragm that reduces the spring pressure and allows the reeds to open. The ECU regulates the engine vacuum to the diaphragm by operating a solenoid valve. 1. With the engine at normal operating temperature and at idle, remove the air cleaner and listen for a bubbling sound at the air suction port. There should be no sound at idle, meaning the air suction valve is closed. 2. If the noise is heard at the air suction port, disconnect the vacuum hose at the air suction valve and connect a vacuum gauge to the hose. There should be no vacuum. If there is vacuum and the noise stops, the problem is in the control system. If there is no vacuum and the bubbling sound is still there, the air suction valve is defective and must be replaced. 3. To test the valve, draw a vacuum at the air suction valve diaphragm and listen for a bubbling sound at the air suction port. If no sound is heard, the air suction valve or diaphragm is faulty. Throttle Control System

2004 Chevrolet Chevy K Silverado – 4WD Evaporative Emission (EVAP) Canister Vent Solenoid Valve Replacement Pickup

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Evaporative Emission (EVAP) Canister Vent Solenoid Valve Replacement Pickup Removal Procedure Important Clean the evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the fittings in order to avoid possible system contamination. 1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. 2. Remove the harness clip from the canister vent solenoid (CVS) line. 3. Disconnect the CVS electrical connector. 2004 Chevrolet Chevy K Silverado – 4WD 4. If the vehicle is equipped with a 6 ft box, disconnect the EVAP CVS line from the canister. 5. Remove the CVS clip from the frame crossmember. 6. Push in the retainer and remove the CVS from the fuel tank clip. 7. If the vehicle is equipped with a 8 ft box, disconnect the EVAP CVS line from the canister. 8. Remove the CVS clip from the frame crossmember. 9. Push in the retainer and remove the CVS from the fuel tank clip. Installation Procedure 1. If the vehicle is equipped with a 8 ft box, install the CVS to the fuel tank until the clip engages. Important On vehicles equipped with a 8 ft box, the CVS line is routed below the frame crossmember. 2. Install the CVS clip to the frame crossmember. 3. Connect the EVAP CVS line to the canister. 4. If the vehicle is equipped with a 6 ft box, install the CVS to the fuel tank until the clip engages. Important On vehicles equipped with a 6 ft box, the CVS line is routed above the frame crossmember. 5. Install the CVS clip to the frame crossmember. 6. Connect the EVAP CVS line to the canister. 7. Connect the CVS electrical connector. 8. Install the harness clip to the canister vent solenoid (CVS) line. 9. Lower the vehicle.

1984-1998 Jeep Wagoneer/ Commando/ Cherokee Emission Controls Crankcase Ventilation System (PCV/CCV)

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CCV Fitting See Figures 2 and 3 1. With the engine running, remove the CCV fitting. a. If the fitting is not plugged, a hissing noise will be heard as air passes through the valve. A strong vacuum should also be felt when a finger is placed over the fitting. b. Install the CCV fitting. c. Remove the fresh air hose from the air cleaner assembly and loosely hold a piece of paper over the open end of the hose. After allowing about one minute for the crankcase pressure to reduce, the paper should be sucked against the opening with a noticeable amount of force. 2. Turn the engine OFF . Remove the metered orifice fitting, and check for a plugged condition. A clicking noise should be heard to indicate that the valve mechanism is free. 3. If the crankcase ventilation system meets the tests in Steps 1 and 2 above, no further service is required. If not, the CCV fitting must be cleaned and the system checked again. 4. If Step 1c fails when the CCV fitting is cleaned, it will be necessary to replace the molded vacuum hose with a new one, and to clean the metered orifice port. 5. Clean or replace the engine air cleaner filter element with a new one-for more details, refer to the air cleaner procedure located in General Information & Maintenance. Fig. 2: CCV system diagram for 4.0L engine Fig. 3: CCV system diagram for the 2.5L engine Evaporative Emission Control System OPERATION The evaporative emission control system prevents the release of unburned hydrocarbons, from gasoline or gasoline vapor, into the atmosphere. When pressure in the fuel tank is below 3 psi (20 kPa), the pressure relief/rollover valves open allowing fuel vapors to flow to the evaporative canister where they are absorbed by a charcoal mixture. This prevents excessive pressure buildup in the fuel system. Most canisters are equipped with a calibrated orifice at the inlet to the canister.

2001 Ford F-150 Draining-Coalescer/ Pressure Relief-Natural Gas Bi-Fuel System Repair Manual

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1. Relieve the Bi-fuel system fuel pressure. For additional information, refer to Pressure Relief—Natural Gas Bi-Fuel System. 2. Raise the vehicle on the hoist. For additional information, refer to Section 100-02. 3. NOTE: There is an O-ring attached to the drain plug. The O-ring must be replaced each time the drain plug is removed. Remove the drain plug. 4. Install the drain plug. 5. Lower the vehicle. 6. Pressurize the fuel system. WARNING: It is important that your bi-fuel vehicle be correctly maintained by Ford bi-fuel trained personnel. If a concern occurs, it is important that correctly trained personnel diagnose the cause. If a concern relates to the fuel system, correct part replacement is imperative to keep your vehicle operating at normal performance. Bi-fuel components and gasoline specific components are not interchangeable. If your vehicle is not serviced in accordance with bi-fuel service procedures, damage can occur and your warranty may be invalidated. WARNING: Fuel supply lines are always pressurized. When servicing fuel related components, do not smoke or carry lighted tobacco or an open flame of any type. Flammable mixtures may be present and can ignite, resulting in personal injury. WARNING: The natural gas fuel system is always pressurized to 655 kPa (95 psi) downstream of the fuel pressure regulator and up to 24821 kPa (3,600 psi) upstream of the fuel pressure regulator. Use care when servicing the fuel system or personal injury can occur. WARNING: The natural gas fuel supply manifold is pressurized to 655 kPa (95 psi). Fuel pressure must be relieved prior to any fuel system service. WARNING: The fuel system pressure must be relieved before any component can be removed. The fuel tanks must be evacuated prior to tank removal. Removal of components without pressure relief or tank evacuation can cause natural gas to escape into the air and cause injury or death.