Question about 2004 Chevrolet Silverado

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I have a fuel tank venting problem, what do I check first?

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  • kbrown0033 Jun 25, 2009

    Cap was replaced about a year ago, someone stole my old one, I have trouble filling the tank, it does not accept fuel readily. So I don't think it could be the cap.

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  • Contributor
  • 41 Answers

Your cap would be the cheapest and easiest

Posted on Jun 25, 2009

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Landrover td5, I have changed fuel pump and filter, only goes a few miles and stops, spin filter off it's only half full?


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check tank vent or EVAP system for venting problems

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Why am I having fuel issues with a 97' f-250 7.3 powerstroke, put new sensors on everything, new fuel lift pump, glow plugs,filter, new tank filter, cleaned all the lines from tank to the fuel bowl, s


If this situation occurs after a period of time then check the tank vent correctly at the vent valve on top of the tank. If it occurs reasonably quickly then check the fuel return lines from the injectors to the tank for obstruction ,kinks ,squashed etc preventing the fuel free access to the tank. check the pressure regulator to the pump is holding sufficient pressure to maintain pressure to the pumpin the pump

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Fuel backs up when fueling


Check the evap fuel canister...make sure its not clogged with dirt or fuel. Check the evap canister vent solenoid- it should be open with the car off.

Nov 05, 2012 | 2010 Ford F-350 Super Duty

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My 89 nissan 240 sx fuel EVAP failed the smog test


The carbon canister may saturated. If you are one to try get as much fuel as possible into the fuel tank, that may be how it happened.

Also check the gas cap. There is supposed to be a one way valve to allow air to enter into tank, but not vent out in any direction but by the vent hose to the carbon canister. That valve may be leaking. Also, there is a purge vent to the intake manifold, check to make sure that passage is clear and not carboned up.

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Manual of how to change fuel pump in honda passport


Hi Bobby:
Check this Fuel Pump Removal & Installation...
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Relieve fuel system pressure.
  3. Drain the fuel tank.
  4. Remove or disconnect the following:
    Negative battery cable Fuel filler and vent hoses Fuel tank skid plate Fuel tank wiring connectors Fuel supply and return lines Fuel tank Fuel pump assembly

1_20_2012_4_25_10_pm.gif

Fig. Fuel pump assembly mounting
Zoom Image link: HERE

To install:

  1. Install or connect the following:
    Fuel pump assembly Fuel tank. Tighten the bolts to 27 ft. lbs. (36 Nm). Fuel supply and return lines Fuel tank wiring connectors Fuel tank skid plate Fuel filler and vent hoses Negative battery cable
  2. Start the engine and check for leaks.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jan 03, 2012 | 1999 Honda Passport

1 Answer

How do i change fuel pump


Check this Fuel Pump Removal & Installation...
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Relieve fuel system pressure.
  3. Drain the fuel tank.
  4. Remove or disconnect the following:
    Negative battery cable Fuel filler and vent hoses Fuel tank skid plate Fuel tank wiring connectors Fuel supply and return lines Fuel tank Fuel pump assembly

1_20_2012_4_25_10_pm.gif

Fig. Fuel pump assembly mounting
Zoom Image link: HERE

To install:

  1. Install or connect the following:
    Fuel pump assembly Fuel tank. Tighten the bolts to 27 ft. lbs. (36 Nm). Fuel supply and return lines Fuel tank wiring connectors Fuel tank skid plate Fuel filler and vent hoses Negative battery cable
  2. Start the engine and check for leaks.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jan 03, 2012 | 1999 Honda Passport

1 Answer

P0446 ford escort 98


This Pinpoint Test is intended to diagnose the following:
  • Canister vent (CV) solenoid (9F945) (electrical concern only)
  • Fuel filler cap (9030)
  • Fuel tank pressure (FTP) sensor (9C052)
  • EVAP canister tube (fuel tank to EVAP canister)(9A228)
  • Fuel canister purge outlet tube (EVAP canister to EVAP canister purge valve) (9D661)
  • EVAP return tube (EVAP canister purge valve to intake manifold) (9G271)
  • EVAP canister purge valve (9C915)
  • Vacuum source line (input port vacuum to intake manifold)
  • Harness circuits: CV, FLI, FTP, EVAP Canister Purge Valve, SIG RTN, vehicle power (VPWR), reference voltage (VREF) and power ground (PWR GND)
  • Powertrain control module (PCM) (12A650)
This Pinpoint Test is used as an assistance in diagnosing the following EVAP components:
  • EVAP canister and bracket assembly (9E857)
    • EVAP canister sleeve assembly (fitting)(9D925)
    • Canister vent (CV) solenoid - hose assembly (9F976 or 9K318)
    • EVAP canister (9D653)
    • Canister vent (CV) solenoid (9F945)(mechanical concern only)
  • Fill limit valve assembly (9A086)
  • Fuel filler pipe flapper valve (9B085)
  • Fuel filler pipe check valve (9189), assembly (9285)
  • Fuel tank filler pipe (9034)
  • Fuel tank assembly (with fuel vapor vent valve) (9K007)
  • Fuel tank assembly (without fuel vapor vent valve) (9002)
  • Fuel vapor control valve (9B190)
  • Fuel vapor vent valve (9B593)
  • Liquid/vapor fuel discriminator (9G332)
  • On-board refueling vapor recovery (ORVR) T - connector assembly (9S314)
Description For additional information on the Evaporative Emission (EVAP) System, refer to Section 1A .
For additional information on the Evaporative Emission System Monitor, refer to Section 1A .
Pinpoint Test Schematics Escort/Tracer (2V)
aa3060b.gif

May 28, 2011 | 1998 Ford Escort

2 Answers

Removal of gas tank


Fuel Tank Assembly Removal & Installation Single Tank To Remove:
  1. Before servicing the vehicle refer to the precautions at the beginning of this section
  2. Relieve fuel system pressure (See: Fuel System Relieving)
  3. Disconnect the negative battery cable
  4. Raise and support the vehicle
  5. Drain the fuel tank in an approved container
  6. Remove or disconnect the following:
    • evaporative emission (EVAP) canister Disconnect fuel lines for single tank gm_trk_sub15_fuel_line_rem_singl_tnk.gif

    • Chassis fuel lines (B) at the fuel tank (A)
      1. Cap the fuel and EVAP lines to prevent possible fuel system contamination
      Disconnect EVAP vent line gm_trk_sub15_evap_vent_line_rem.gif

    • EVAP vent line at the fuel tank clip (E) Disconnect vent hose and filler hose gm_trk_sub15_vent_filler_hoses.gif

    • Vent hose and filler hose clamp (D, B)
    • Vent hose and filler hose from the line
    Fuel tank removal gm_trk_sub15_fuel_tank_rem.gif

  7. With the aid of an assistant or a suitable jack support the fuel tank
  8. Remove or disconnect the following:
    • Fuel tank strap attaching bolts
    • Fuel tank straps
  9. Carefully lower the rear of the fuel tank slightly
  10. Remove or disconnect the following:
    • Fuel sender cover Fuel tank connections gm_trk_sub15_fuel_tank_conn.gif

    • Fuel sender and the fuel pressure sensor electrical connectors
    • Fuel tank
  11. Place the fuel tank in a suitable work area Fuel lines at the tank gm_trk_sub15_fuel_lines_at_tank.gif

  12. Remove or disconnect the following:
    • Fuel feed and return lines (C) from the fuel sender and the retaining clips
    • Fuel pump assembly from the fuel tank
    • EVAP line from the fuel tank roll over valves (B, D) and the retaining clips (A)
    • Fuel fill hose and the vent hose from the fuel tank
    • Fuel tank
To Install:
  1. Install or connect the following:
    • EVAP line to the fuel tank roll over valves and the retaining clips
    • Fuel pump assembly to the fuel tank
    • Fuel feed and return lines to the fuel sender and the retaining clips
    • Fuel fill hose and the vent hose to the fuel tank; torque hose clamps,
      1. Torque to: 22 lb-in. (2.5 Nm)
  2. With the aid of an assistant or a suitable jack support and partially raise the fuel tank front end first
  3. Install or connect the following:
    • Fuel sender and the fuel pressure sensor electrical connectors
    • Fuel sender cover
  4. Fully raise the fuel tank
  5. Install or connect the following:
    • Fuel tank straps
    • Install the fuel tank strap attaching bolts;
      1. Torque to 30 lb-ft. (40 Nm)
    • Fuel fill hose and the vent hose to the lines;
      1. Torque hose clamp to 22 lb-in. (2.5 Nm)
  6. Torque the vent hose clamp,
    • Torque to: 22 lb-in. (2.5 Nm)
  7. Connect the EVAP vent line to the fuel tank clip
  8. Remove the caps from the fuel and EVAP lines
  9. Install or connect the following:
    • chassis fuel lines at the fuel tank
    • EVAP canister
  10. Lower the vehicle to the ground
  11. Fill the fuel tank with clean fuel
  12. Install the fuel filler cap
  13. Connect the negative battery cable
  14. Use the following procedure to inspect for leaks:
    • Turn the ignition on for two seconds
    • Turn the ignition off for 10 seconds
    • Turn the ignition on
    • Inspect for fuel leaks
  15. Install the engine sight shield
  16. Road test the vehicle to check performance

Feb 12, 2011 | 2000 GMC Sierra

1 Answer

How to Change a Fuel Pump on an 2005 Envoy XLT? Must drop the tank? Does it have access under the rear seat?


Usually there is no access under the rear seat for safety reasons.prev.gif next.gif Fuel Tank Removal & Installation 2002-2004 To Remove:
  1. Relieve the pressure in the fuel system.
  2. Lift the vehicle.
  3. Remove the frame brace from the frame.
  4. Remove the fuel tank shield from the fuel tank.
  5. Drain the fuel from the tank into an approved container.
  6. Loosen the fuel hose clamp and disconnect the hose from the fuel tank.
  7. Disconnect the evaporative emission (EVAP) vent valve and fuel tank pressure sensor connectors. Evaporative emission cansister pipes removal and installation gm-05-00-1546.gif

  8. Disconnect the evaporative emission (EVAP) vapor and vent valve pipes from the evaporative emission (EVAP) canister.
  9. Disconnect the fuel return and feed pipes from the fuel tank.
  10. To avoid system contamination, cap the evaporative emission (EVAP) and fuel pipes.
  11. Use a jack to support the fuel tank. Fuel tank removal and installation gm-05-00-1547.gif

  12. Detach the fuel tank straps from the frame.
  13. Lower the fuel tank.
  14. Disconnect the fuel sender connector.
  15. Remove the fuel tank from the vehicle.
To Install:
  1. Place the fuel tank under the vehicle.
  2. Connect the fuel sender connector.
  3. Attach the fuel tank straps to the frame. Torque the bolts to 24 ft-lb (32 Nm).
  4. Remove the caps from the evaporative emission (EVAP) and fuel pipes.
  5. Connect the evaporative emission (EVAP) vapor and vent valve pipes to the evaporative emission (EVAP) canister.
  6. Connect the evaporative emission (EVAP) vent valve and fuel tank pressure sensor connectors.
  7. Connect the fuel hose to the fuel tank. Torque the clamp to 22 in-lb (2.5 Nm).
  8. Connect the fuel return and feed pipes to the fuel tank.
  9. Lower the vehicle.
  10. Refill the fuel tank.
  11. Turn on the ignition for 2 seconds, with the engine off, and then turn off the ignition. After 10 seconds, turn the ignition back on with the engine off.
  12. Lift the vehicle.
  13. Check for leaks in the fuel lines.
  14. Install the fuel tank shield onto the fuel tank.
  15. Install the frame brace onto the frame.
  16. Lower the vehicle.
2005-2007 To Remove:
  1. Relieve the pressure in the fuel system.
  2. Lift the vehicle.
  3. Remove the frame brace from the frame.
  4. Remove the fuel tank shield from the fuel tank.
  5. Drain the fuel from the tank into an approved container. Evaporative emission cansister pipes removal and installation gm-05-00-1544.gif

  6. Disconnect the evaporative emission (EVAP) canister fresh air, solenoid, and purge pipes from the evaporative emission (EVAP) canister.
  7. Disconnect the fuel filler pipe recirculation hose from the fuel tank.
  8. Loosen the fuel fill pipe clamp and disconnect the pipe from the fuel tank.
  9. Disconnect the fuel feed and evaporative emission (EVAP) pipes from the fuel tank.
  10. To avoid system contamination, cap the pipes.
  11. Use a jack to support the fuel tank. Fuel tank removal and installation gm-05-00-1545.gif

  12. Detach the fuel tank straps from the frame.
  13. Lower the fuel tank.
  14. Disconnect the evaporative emission (EVAP) vent valve, fuel tank pressure sensor, and fuel sender connectors.
  15. Remove the fuel tank from the vehicle.
To Install:
  1. Place the fuel tank under the vehicle.
  2. Connect the evaporative emission (EVAP) vent valve, fuel tank pressure sensor, and fuel sender connectors.
  3. Lift the fuel tank.
  4. Attach the fuel tank straps to the frame. Torque the screws to 24 ft-lb (32 Nm).
  5. Remove the caps from the pipes.
  6. Connect the fuel feed and evaporative emission (EVAP) pipes to the fuel tank.
  7. Connect the fuel fill pipe to the fuel tank. Torque the clamp to 22 in-lb (2.5 Nm).
  8. Connect the fuel filler pipe recirculation hose to the fuel tank.
  9. Connect the evaporative emission (EVAP) canister fresh air, solenoid, and purge pipes to the evaporative emission (EVAP) canister.
  10. Lower the vehicle.
  11. Refill the fuel tank.
  12. Turn on the ignition for 2 seconds, with the engine off, and then turn off the ignition. After 10 seconds, turn the ignition back on with the engine off.
  13. Lift the vehicle.
  14. Check for leaks in the fuel lines.
  15. Install the fuel tank shield onto the fuel tank.
  16. Install the frame brace onto the frame.
  17. Lower the vehicle.

Jul 11, 2010 | 2005 GMC Envoy Xl

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