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fuel system diagram for 2002 altima 3 5 v6

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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.

NISSAN ALTIMA OR SENTRA W /QR25 ENGINE NO-START AFTER COLD SOAK REPAIR MANUAL

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SERVICE PROCEDURE Replace Starter, Add Cleaner 1. Replace the starter motor. • Use the part number from the Parts Information section of this bulletin. • Refer to section SC, “STARTING SYSTEM, Removal and Installation” in the applicable Nissan Electronic Service Manual (ESM). 2. Add one full can of Nissan In-Tank Fuel System Cleaner to the fuel. NOTE: If the fuel tank is less than ¾ full, instruct the customer to fill the tank as soon as it is convenient after the repair. Driving with the Cleaner installed and low fuel level will not harm the fuel system or engine, but will reduce the effectiveness of the cleaning process. 3. Continue to ECM Part Number Check (next page). 1. With CONSULT-II “ON”, print the Self-DIAG Results as follows: START (Nissan) >> ENGINE >> Self-DIAG Results >> PRINT SELF-DIAG RESULTS SYSTEM ENGINE DATE XX/XX/XXXX* 11:07:11 P/N 23710-XXXXX TP020389h DTC RESULTS TIME NO DTC IS DETECTED Current ECM Part Number * Example, your screen may differ. 3. Using the printout from Step 1: • Compare the vehicle’s current ECM P/N to those shown under Current ECM P/N in Chart 1, below: • This comparison will allow you to determine if the ECM needs to be reprogrammed. Chart 1, Current ECM P/N’s: VEHICLE PACKAGE NATS? CURRENT ECM P/N A/T, ASCD YES 23710-9J305, -9J003, -9J002, -9J001, -9J000, -8J001, -8J000 M/T, ASCD YES 23710-9J315, -9J013, -9J012, -9J011, -9J010, -8J061, -8J060 A/T, no ASCD YES 23710-9J300, -9J008, -9J007, -9J006, -9J005, -8J011, -8J010 02-04 Altima M/T, no ASCD YES 23710-9J310, -9J018, -9J017, -9J016, -9J015, -8J071, -8J070 YES 23710-8U542, -8U541, -8U540, -8U041, 8U040 A/T NO 23710-8U502, -8U501, -8U500, -8U001, 8U000 YES 23710-8U562, -8U561, -8U560, -8U061, -8U060 02-03 Sentra 5 M/T NO 23710-8U512, -8U511, -8U510, -8U011, -8U010 YES 23710-8U072, -8U071, -8U070 02 Sentra 6 M/T NO 23710-8U022, -8U021, -8U020 YES 23710-8U572, -8U571, -8U570 03 Sentra 6 M/T NO 23710-8U522, -8U521, -8U520 NOTE: The 2004 Sentra ECM does not need to be reprogrammed for this bulletin. A. If your vehicle’s ECM P/N matches a P/N in the chart above: • Perform ECM Reprogramming (page 4). B. If your vehicle’s ECM P/N does not match a P/N in the chart above: • ECM Reprogramming is not necessary, bulletin complete / end here

2002 Ford Crown Victoria/ Grand Marquis Fuel Injection Supply Manifold Workshop Manual

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Removal All vehicles WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury. WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. Before working on or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved. Failure to follow these instructions may result in personal injury. 1. Disconnect the battery ground cable (14301). For additional information, refer to Section 414-01 . 2. Relieve the fuel pressure. For additional information, refer to Section 310-00A (Gasoline) or Section 310-00B (Natural Gas). 3. Disconnect the fuel lines. For additional information, refer to Section 310-00A (Gasoline) or Section 310-00B (Natural Gas). 4. Remove the throttle body (9E926). For additional information, refer to Throttle Body in this section. 5. On gasoline engines, remove the EGR valve to exhaust manifold tube (9D477). For additional information, refer to Section 303-08 . 6. Remove the drive belt (8620). For additional information, refer to Section 303-05 . Vehicles equipped with natural gas engines 7. Disconnect the fuel temperature sensor connector. 8. Disconnect the fuel pressure sensor connector. All vehicles 9. Disconnect the main fuel shut-off solenoid connector. 10. Disconnect the generator cable, electrical connector, and harness pin-type retainer. 11. Remove the bolts and the generator mounting bracket (10153). 12. Remove the bolts. 13. Unclip the accelerator cable (9A758) and the speed control actuator cable (9A825) from the two crash brackets and position out of the way. 14. Separate the LH heated oxygen sensor and the transmission electrical connector from the bracket at the rear of the cylinder head. 15. Separate the fuel charging wiring pin-type retainer from the crash bracket. 16. Remove the wiring bracket. * Disconnect the wiring connectors. * Separate the transmission harness from the stud. * Remove the nut and the bolt and remove the bracket 17. NOTE: On natural gas vehicles, there are no EGR vacuum connections. Disconnect the vacuum lines and position out of the way. 18. Remove bolt and stud and remove the crash bracket. 19. Disconnect the ground connector from the RH rear stud. 20. Disconnect generator harness locator retainer from LH front stud. 21. Disconnect the eight fuel injector electrical connectors

Test Guidelines for Use of Essential Tool J 41413-200 Evaporative System Tester

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Non-Enhanced EVAP System Diagnostic Procedure 1. Pinch off or plug the EVAP vapor line to seal the EVAP system. 2. Connect the EEST red battery clip to the positive (+) battery terminal. Connect the black battery clip to chassis ground. 3. Install the appropriate fuel fill cap adapter to the fuel fill pipe. Refer to the Service Information for the appropriate fuel fill cap adapter part number. 4. Connect the EEST’s nitrogen/smoke supply hose and vehicle fuel fill cap to the adapter. 5. Turn the nitrogen/smoke valve on the EEST control panel to SMOKE. 6. Use the remote switch to introduce smoke into the EVAP system for 60 seconds. Important: Additional smoke may need to be introduced at 15-second intervals until the leak source has been located. 7. Inspect the entire EVAP system for exiting smoke using the high intensity white light (J 41413-SPT). Enhanced EVAP System Leak Detection Procedure When diagnosing DTCs P0440, P0442, P0446 and P0455, use the J 41413-200 EEST along with 1. Turn ON the ignition with the engine OFF. 2. Command the EVAP vent valve closed with a scan tool.* *Prizm: In order to seal the EVAP system on the 1998-2002 Prizm, bypass the EVAP canister by connecting the fuel tank vapor hose to the canister purge line. Refer to the Service Information for additional information. 3. Connect the EEST red battery clip to the positive (+) battery terminal. Connect the black battery clip to chassis ground. 4. Install the appropriate fuel fill cap adapter to the fuel fill pipe. Refer to the Service Information for the appropriate fuel fill cap adapter part number. 5. Connect the EEST’s nitrogen/smoke supply hose and vehicle fuel fill cap to the adapter. 6. Turn the nitrogen/smoke valve on the EEST control panel to SMOKE. 7. Use the remote switch to introduce smoke into the EVAP system. 8. Use the J 41413-VLV EVAP Port Vent Fitting tool to open the EVAP service port (if equipped) until smoke is observed. 9. Remove the J 41413-VLV EVAP Port Vent Fitting tool once smoke is observed. Important: Additional smoke may need to be introduced at 15-second intervals until the leak source has been located.