Question about 2007 Mazda B4000

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My 94 mazda b4000 p.u. faild smog due to fuel vapor leak from the filler tube or some other location as well. Aside from the filler tube, what else should I change to ensure the system holds the vapor during the test?

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Fuel cap

Posted on Oct 06, 2009

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2 Answers

How do I remove the gas tank out of a 2006 Ford 500 no one knows


SECTION 310-01: Fuel Tank and Lines 2006 Freestyle/Five Hundred/Montego Workshop Manual REMOVAL AND INSTALLATION

All vehicles
  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02 .
  1. Release the fuel system pressure. For additional information, refer to Section 310-00 .
  1. Drain the fuel tank. For additional information, refer to Section 310-00 .
All wheel drive vehicles
  1. Remove the rear driveshaft. For additional information, refer to Section 205-00 .
All vehicles
  1. Remove the muffler. For additional information, refer to Section 309-00 .
  1. Disconnect the fuel vapor control tube assembly valve-to-fuel vapor tube quick connect coupling. For additional information, refer to Section 310-00 .
  1. Disconnect the fuel supply tube-to-fuel filter quick connect coupling. For additional information, refer to Section 310-00 .
  1. Disconnect the fuel vapor tube-to-fuel vapor control tube assembly valve quick connect coupling. For additional information, refer to Section 310-00 .
  1. Disconnect the fuel tank wiring harness electrical connector at the rear of the fuel tank.
  1. Release the clamp and remove the fuel tank filler hose from the fuel tank.
  1. Place a suitable lifting device under the fuel tank.
  1. Remove the 2 front fuel tank strap bolts.
    • To install, tighten to 35 Nm (26 lb-ft).
  1. NOTE: Do not bend the fuel tank straps.
    Loosen the 2 rear fuel tank strap bolts and position the 2 fuel tank straps aside.
  1. Lower the fuel tank enough to move forward, clear of the fuel straps then complete the lowering procedure.
  1. To install, reverse the removal procedure.

Procedure revision date: 08/19/2009


May 03, 2016 | Ford Cars & Trucks

1 Answer

Didn't pass smog due to fuel leak? It passed the emission part of the smog test, however failed because of gas vapors leaking from the fuel system. What should I check first to locate the leak?


Fuel tankes have only one large acess on the top i sugest checkin the rubber gasket for cracks or perishing also check along the fuel lines for damp spots use your nose to locat the strongest area of gas then go from there hope this helps:)

Oct 21, 2011 | Cars & Trucks

1 Answer

How to remove the gas tank on 1989 buick regal?


Tank Assembly REMOVAL & INSTALLATION CAUTION
The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in personal injury. 1988 Vehicles Fig. 1: Fuel tank mounting components 88005g60.gif
Fig. 2: Fuel tank insulator mounting positions 88005g61.gif
  1. Disconnect the negative battery cable.
  2. Properly relieve the fuel system pressure, as outlined earlier in this section.
  3. Raise and safely support the vehicle.
  4. Use a suitable hand operated pump device to drain the fuel through the filler tube into an approved container. CAUTION
    Observe all applicable safety precautions when working around gasoline. Do not allow fuel spray or fuel vapors to come in contact with a spark or open flame. Keep a dry chemical (Class B) fire extinguisher near the work area. Never drain or store fuel in an open container due to the possibility of fire or explosion.
  5. Support the fuel tank with a suitable jack.
  6. Remove the 2 bolts securing the fuel tank straps, then swing the straps out of the way.
  7. Lower the fuel tank enough to disconnect the vapor hose from the fuel sender assembly and the vapor hose from the vapor pipe at the rear of the fuel tank.
  8. Detach the electrical connector from the fuel sender assembly and remove the two retaining clips. If equipped, disconnect the ground strap.
  9. Disconnect the fuel filler and vent hoses from the fuel tank.
  10. Remove the tank from the vehicle, slowly to ensure all connections and hoses have been disconnected. To install:
  11. Clean all parts well. Inspect the tank for dents, rust or other damage. On high-mileage vehicles, it may be good practice to remove the fuel pump module and replace the flexible strainer on the fuel pump.
  12. Position the fuel tank under the vehicle and raise the tank with a suitable jack.
  13. Connect the fuel feed and return lines to the sender assembly.
  14. Attach the electrical connector to the fuel sender assembly. If equipped, connect the ground strap.
  15. Raise the tank into position into the vehicle and swing the mounting straps under the tank.
  16. Install the front fuel tank strap mounting bolts and tighten to 35 ft. lbs. (47 Nm).
  17. Remove the jack.
  18. Connect the fuel filler and vent hoses to the tank.
  19. Carefully lower the vehicle, then refill the fuel system
  20. Connect the negative battery cable, then install the fuel filler cap, if not done already.
  21. Turn the ignition switch ON for 2 seconds, OFF for 10 seconds, then ON and check for fuel leaks.
1989–94 Vehicles
  1. Disconnect the negative battery cable.
  2. Properly relieve the fuel system pressure, as outlined earlier in this section.
  3. Raise and safely support the vehicle. CAUTION
    Observe all applicable safety precautions when working around gasoline. Do not allow fuel spray or fuel vapors to come in contact with a spark or open flame. Keep a dry chemical (Class B) fire extinguisher near the work area. Never drain or store fuel in an open container due to the possibility of fire or explosion.
  4. Use a suitable hand operated pump device to drain the fuel through the filler tube into an approved container. NOTE: Before disconnecting any fuel lines from the fuel tank, thoroughly clean around all hose connections.
  5. Disconnect the fuel filler vent hose from the fuel tank.
  6. Detach the fuel filler hose from the fuel filler inlet tube on the fuel tank. Position the hose out of the way.
  7. Disconnect the vapor hose from the front of the fuel tank.
  8. Detach the fuel return pipe and position the hose out of the way.
  9. Disconnect the two rear rubber exhaust hangers from the rear of the exhaust system and allow the exhaust system to hang down slightly.
  10. Unfasten the exhaust shield mounting bolts, then remove the exhaust shield.
  11. Support the fuel tank with a suitable jack.
  12. Remove the two bolts securing the fuel tank straps, then swing the straps out of the way.
  13. Lower the fuel tank enough to disconnect the vapor hose from the fuel sender assembly and the vapor hose from the vapor pipe at the rear of the fuel tank.
  14. Detach the electrical connector from the fuel sender assembly and remove the two retaining clips.
  15. Remove the tank from the vehicle, slowly to ensure all connections and hoses have been disconnected. To install:
  16. Clean all parts well. Inspect the tank for dents, rust or other damage. On high-mileage vehicles, it may be good practice to remove the fuel pump module and replace the flexible strainer on the fuel pump.
  17. Position the fuel tank under the vehicle and raise the tank with a suitable jack.
  18. Connect the vapor hose to the fuel tank at the vapor pipe at the rear of the tank and connect the vapor hose to the sender assembly.
  19. Attach the electrical connector to the fuel sender assembly.
  20. Connect the fuel feed and return lines to the sender assembly.
  21. Raise the tank into position into the vehicle and swing the mounting straps under the tank.
  22. Install the front fuel tank strap mounting bolts and tighten to 35 ft. lbs. (47 Nm).
  23. Remove the jack.
  24. Connect the fuel return pipe to the fuel feed pipe.
  25. Attach the rear fuel feed pipe to the inlet side of the fuel filter.
  26. Tighten the line fittings to 16 ft. lbs. (22 Nm). Make sure to use a back-up wrench to prevent the fuel filter from turning.
  27. Connect the vapor hose to the vapor pipe at the front of the vehicle.
  28. Attach the fuel filler vent hose to the tank. Connect the fuel filler hose to the fuel filler neck of the tank.
  29. Install the exhaust heat shield and the mounting bolts.
  30. Position the exhaust system and install the rubber hangers.
  31. Carefully lower the vehicle, then refill the fuel system
  32. Connect the negative battery cable, then install the fuel filler cap, if not done already.
  33. Turn the ignition switch ON for 2 seconds, OFF for 10 seconds, then ON and check for fuel leaks.

Sep 09, 2010 | 1989 Buick Regal

1 Answer

Obd-2 code p1455


DTC P1455 - Substantial Leak or Blockage in Evaporative Emission Control System

The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).

Check this possible causes:
After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications
Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube
EVAP canister purge valve stuck closed
Damaged EVAP canister
Damaged or missing fuel filler cap
Insufficient fuel filler cap installation
Loose fuel vapor hose/tube connections to EVAP system components
Blockages or restrictions in fuel vapor hoses/tubes (items also listed under disconnections or cracks)
Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked
Canister vent (CV) solenoid stuck open
Mechanically inoperative fuel tank pressure (FTP) sensor


Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank

Tell us news.

Jul 19, 2010 | 1996 Ford Explorer

2 Answers

What is he code 455 for a 2006 hyundai sonata means


CODE PO455 EVAPORATIVE EMISSION SYSTEM LARGE LEAK DETECTED.POSSIBLE CAUSES CANISTER VENT SOLENOID MAY BE STUCK IN OPEN POSITION / EVAP CANISTER TUBE EVAP CANISTER PURGE OUTLET TUBE OR EVAP RETURN TUBE DISCONNECTED OR CRACKED OR CANISTER IS DAMAGED / EVAP CANISTER PURGE VALVE STUCK CLOSED OR CANISTER DAMAGED / FUEL FILLER CAP MISSING LOOSE NOT TIGHT OR THE WRONG PART / FUEL VAPOR HOSES TUBES BLOCKED OR RESTRICED OR FUEL VAPOR CONTROL VALVE TUBE OR FUEL VAPOR VENT VALVE ASSEMBLY BLOCKED /FUEL TANK PRESSURE SENSOR HAS FAILED MECHANICAL FAULT /FUEL TANK CONTROL VALVE IS CONTAMINATED DAMAGED OR HAS FAILED.

Oct 21, 2009 | 2006 Hyundai Sonata

1 Answer

Check engine light is on for emission evaporator failure-large


P0455 - EVAP Control System Leak Detected (No Purge Flow or Large Leak) The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
  • After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications
  • Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube
  • EVAP canister purge valve stuck closed
  • Damaged EVAP canister
  • Damaged or missing fuel filler cap
  • Insufficient fuel filler cap installation
  • Loose fuel vapor hose/tube connections to EVAP system components
  • Blockages or restrictions in fuel vapor hoses/tubes (items also listed under disconnections or cracks)
  • Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked
  • Canister vent (CV) solenoid stuck open
  • Mechanically inoperative fuel tank pressure (FTP) sensor
Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank. ----------------------------------------------------------------------------- HX43 DTC P0457: CHECK FOR MISSING OR LEAKING FUEL FILLER CAP
  • Check for missing fuel filler cap.
  • Check for loose fuel filler cap.
  • Check for possible cross-thread fuel filler cap condition.
Is a fault present concerning the proper installation of the fuel filler cap? Yes No REPLACE cross-threaded or damaged fuel filler cap. RECONNECT and TIGHTEN the fuel filler cap only one eighth turn so that the cap initially clicks by sound or touch. CLEAR Continuous Memory DTCs. COMPLETE an Evaporative Emission Running Loss Monitor Repair Verification Drive Cycle (refer to Section 2 , Drive Cycles). RERUN Quick Test . If DTC P0455 or P0457 is present, Go to HX44 . CLEAR Continuous Memory DTCs. COMPLETE an Evaporative Emission Running Loss Monitor Repair Verification Drive Cycle (refer to Section 2 , Drive Cycles). RERUN Quick Test .

For DTC P0455 still present: Go to HX44 .

Otherwise, INFORM the vehicle owner that it is important and necessary to immediately install the fuel filler cap after every refueling event. HX44 DTC P0455: VISUAL INSPECTION FOR SUBSTANTIAL EVAPORATIVE EMISSION SYSTEM LEAKS
  • Check for missing fuel filler cap. If the cap is loose DO NOT DISTURB EVAP system.
  • Verify that both the input port vacuum hose and EVAP return tube are attached to the EVAP canister purge valve. Note: If the EVAP canister-CV solenoid assembly is not accessible during this pinpoint test step, GO to Evaporative Emissions, Section 303-13 in the Workshop Manual for removal and installation instructions.
  • Verify that the CV solenoid is properly seated on the EVAP canister (if possible).
  • Visually inspect for disconnected or cracked fuel vapor hoses/tubes between the intake manifold, the EVAP canister purge valve, the EVAP canister, the fuel vapor vent valve assembly and if applicable the fuel vapor control valve tube assembly.
  • Check for damage to the fuel filler pipe and the fuel tank.
Is a fault indicated? Yes No CONNECT or REPLACE fuel vapor hoses/tubes as required. REPLACE damaged EVAP system components (fuel filler pipe, fuel vapor vent valve assembly, fuel vapor control valve tube assembly, EVAP canister purge valve, FTP sensor and EVAP canister-CV solenoid assembly) as necessary. REFER to Evaporative Emissions, Section 303-13 in the Workshop Manual for removal and installation instructions. GO to HX45 . GO to HX45 . HX45 DTC P1443 and P0455: CHECK FOR EVAPORATIVE EMISSION SYSTEM LEAKS
    Note: When checking for leaks or blockages in the EVAP system, energize (close) the canister vent (CV) solenoid through the scan tool for a maximum of nine minutes per pinpoint test step. Then de-energize the CV solenoid prior to performing the subsequent pinpoint test step. This is done to assure proper closing of the solenoid.
  • Disconnect and plug the EVAP return tube (EVAP canister purge valve to intake manifold) at the intake manifold vacuum source.
  • Connect scan tool.
  • Key on, engine off.
  • Access VPWR PID. If the voltage is not 12 volts or greater, GO to HX61 .
  • Locate evaporative test port [marked EVAPORATIVE SERVICE PORT DO NOT USE UNREGULATED PRESSURE ABOVE 6.89 kPa (1 PSI)] near EVAP canister purge valve or EVAP canister.
  • If vehicle is not equipped with the evaporative test port, GO to HX50 .
  • Install the Rotunda Evaporative Emission System Leak Tester 310-F007 (134-00056) or equivalent at the evaporative test port.
  • Close CV solenoid by accessing Output Test Mode on the scan tool.
  • Select ALL OFF mode and push START button.
  • Regulate the nitrogen or argon gas pressure on the tester to 3.48 kPa (14 in-H 2 O).
  • Follow the instructions that come with the EVAP System Leak Tester and pressurize the EVAP system.
  • Perform the EVAP system leak test.
Does the pressure on the EVAP system stay above 1.99 kPa (8 in-H 2 O) and pass the leak test? Yes No GO to HX46 . REMOVE the EVAP System Leak Tester from the evaporative test port and REINSTALL the test port cap. GO to HX50 .

Apr 15, 2009 | 1999 Lincoln Town Car

1 Answer

Can you tell me how to change fuel pump on a 1990 chevy lumina


http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152801dbaf3

when you drop the tank by following these directions you will have access to the pump

1989-94 Vehicles
See Figures 1 and 2
  1. Disconnect the negative battery cable.
  2. Properly relieve the fuel system pressure, as outlined earlier in this section.
  3. Raise and safely support the vehicle.
CAUTION Observe all applicable safety precautions when working around gasoline. Do not allow fuel spray or fuel vapors to come in contact with a spark or open flame. Keep a dry chemical (Class B) fire extinguisher near the work area. Never drain or store fuel in an open container due to the possibility of fire or explosion.
  1. Use a suitable hand operated pump device to drain the fuel through the filler tube into an approved container.
Before disconnecting any fuel lines from the fuel tank, thoroughly clean around all hose connections.
  1. Disconnect the fuel filler vent hose from the fuel tank.
  2. Detach the fuel filler hose from the fuel filler inlet tube on the fuel tank. Position the hose out of the way.
  3. Disconnect the vapor hose from the front of the fuel tank.
  4. Detach the fuel return pipe and position the hose out of the way.
  5. Disconnect the two rear rubber exhaust hangers from the rear of the exhaust system and allow the exhaust system to hang down slightly.
  6. Unfasten the exhaust shield mounting bolts, then remove the exhaust shield.
  7. Support the fuel tank with a suitable jack.
  8. Remove the two bolts securing the fuel tank straps, then swing the straps out of the way.
  9. Lower the fuel tank enough to disconnect the vapor hose from the fuel sender assembly and the vapor hose from the vapor pipe at the rear of the fuel tank.
  10. Detach the electrical connector from the fuel sender assembly and remove the two retaining clips.
  11. Remove the tank from the vehicle, slowly to ensure all connections and hoses have been disconnected.
To install:
  1. Clean all parts well. Inspect the tank for dents, rust or other damage. On high-mileage vehicles, it may be good practice to remove the fuel pump module and replace the flexible strainer on the fuel pump.
  2. Position the fuel tank under the vehicle and raise the tank with a suitable jack.
  3. Connect the vapor hose to the fuel tank at the vapor pipe at the rear of the tank and connect the vapor hose to the sender assembly.
  4. Attach the electrical connector to the fuel sender assembly.
  5. Connect the fuel feed and return lines to the sender assembly.
  6. Raise the tank into position into the vehicle and swing the mounting straps under the tank.
  7. Install the front fuel tank strap mounting bolts and tighten to 35 ft. lbs. (47 Nm).
  8. Remove the jack.
  9. Connect the fuel return pipe to the fuel feed pipe.
  10. Attach the rear fuel feed pipe to the inlet side of the fuel filter.
  11. Tighten the line fittings to 16 ft. lbs. (22 Nm). Make sure to use a back-up wrench to prevent the fuel filter from turning.
  12. Connect the vapor hose to the vapor pipe at the front of the vehicle.
  13. Attach the fuel filler vent hose to the tank. Connect the fuel filler hose to the fuel filler neck of the tank.
  14. Install the exhaust heat shield and the mounting bolts.
  15. Position the exhaust system and install the rubber hangers.
  16. Carefully lower the vehicle, then refill the fuel system
  17. Connect the negative battery cable, then install the fuel filler cap, if not done already.
  18. Turn the ignition switchONfor 2 seconds, OFF for 10 seconds, thenONand check for fuel leaks.

Jan 14, 2009 | 1998 Mercury Sable

1 Answer

My taurus failed due to code p0442 ecap emiss ctl sys leak detected (small leak)


    Continuous Memory Diagnostic Trouble Code (DTC) P0442 indicates that a fuel vapor leak has been detected [as small as 0.10 cm (0.04 inch)] in the Evaporative Emission (EVAP) system.
    Note: Prior to performing the following diagnosis inspect the Canister Vent Solenoid (CV) for contamination. A situation may exist where contamination holds open the Canister Vent (CV) solenoid enough to set DTC P0442 and also plugs the port to atmosphere enough to keep system from being vented quickly.
    • After market parts and accessories nonconforming to the EVAP system specifications.
    • Damaged, cross threaded or loosely installed fuel filler cap.
    • Small holes or cuts in fuel vapor hoses/tubes (EVAP canister tube, EVAP canister outlet tube or EVAP return tube) in the EVAP system.
    • Loose fuel vapor hose/tube connections to EVAP system components.
    • EVAP system component [EVAP canister purge valve, fuel tank pressure (FTP) sensor, canister vent (CV) solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly] seals leaking.
    • CV solenoid partially open when commanded closed.
    • EVAP canister leaking.
  • Check for presence of fuel filler cap.
  • Verify that the CV solenoid is properly seated on the EVAP canister (if possible).
  • Visually inspect for cut or loose connections to fuel vapor hoses/tubes in following locations:
    • EVAP canister to EVAP canister purge valve.
    • EVAP canister to fuel vapor vent valve assembly.
    • fuel vapor control valve tube assembly to fuel tank (if applicable).

Jun 26, 2008 | 1997 Ford Taurus

2 Answers

Code p0445 evap. emission control system leak,large


that means you are driving whit the fuel cap loose or missing or you have a vapor leak on the vapor lines coming from the fuel tank to the engine, have your car inspect for leaks, but make sure to ask your mechanic if he has the smog machine to aply smog to the evaporative system that,s the easiest way to fin a leak,

May 31, 2008 | 2002 Mazda Protege

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