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Can I bypass the check valve in the fuel tank

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  • Cars & Trucks Master
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No. The check valve is built internal to the fuel pump. It is designed to maintain fuel pressure in the line so the fuel doesn't bleed back into the tank

Posted on May 02, 2015

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6ya6ya
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Posted on Jan 02, 2017

  • 72 Answers

SOURCE: My rear tank does not work. The selector valve is

Do it if you wish to but first just change the valve.

Posted on Sep 12, 2009

  • 6468 Answers

SOURCE: how can i bypass or remove the anti siphon valve on a 2005 suburban

if you are having a problem filling it with fuel replace the canister vent solenoid it vents the fuel tank

Posted on Sep 28, 2012

remy_22
  • 1 Answer

SOURCE: fuel pump fuse keeps blowing. replaced fuel pump , still blows,disconected air bypass valve, still blows, doesn't blow if i disconect the fuel tank wiring plug. how can i test the sending unit wir

You must change the mounting round plate that hold the fuel pump in place, I'm 100% sure that were the problem is, you needs to buy the fuel pump assembly came with the plate good lck.

Posted on Feb 12, 2013

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1995 f350 gas motor died and won't run when I switched fuel tanks? Selector valve or fuel pump? Can I bypass selector valve?


Very inexpensive part, recommend replacing the fuel switch valve. You can buy it at any local auto parts store. If you choose not to, you could replace with a plastic t-fitting but then it would draw from either tank at any time, not recommended.

Mar 17, 2016 | Cars & Trucks

1 Answer

2004 Honda Pilot Evap code P1456 Changed gas cap from honda and still


code p1456 refers to evaporative emission (EVAP) canister purge system(fuel tank system) -leak detected===causes--hose-fuel tank/pressure sensor--fuel filler cap--EVAP valve /bypass solenoid--EVAP two way valve---EVAP canister/vent valve

There is also a second reference to the code which is EVAP system leakage ====filler cap--EVAP canister purge valve--hoses---EVAP canister shut off valve---ECM programming---ECM

Check with the service dealer that the filler caps are interchangeable . It may be coincidence that the problem started after you changed caps or it may have shown a failure in the making

Aug 19, 2014 | Cars & Trucks

1 Answer

How can i bypass or remove the anti siphon valve on a 2005 suburban


if you are having a problem filling it with fuel replace the canister vent solenoid it vents the fuel tank

Sep 27, 2012 | 2005 Chevrolet Suburban

1 Answer

How do I resolve diagnostic code P0455 on my 2005 Chevrolet Tahoe?


Here is the definition and possible causes.

Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
P0455 CHEVROLET Description This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.


The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
Read more: http://engine-codes.com/p0455_chevrolet.html#ixzz24fVfq0Bx

Aug 26, 2012 | 2005 Chevrolet Tahoe

2 Answers

2002 Pathfinder code p1491


Try replacing gas cap first before you spend any money on more on repairs

Aug 18, 2012 | 2002 Nissan Pathfinder

2 Answers

1990 f150 xlt lariat 4x4 how do i delete my aux fuel tank. can i just plug the lines


Drain aux tank, remove/bypass switchover valve and run hose from main tank to line from switch valve forward.

Feb 26, 2011 | 1990 Ford F150

1 Answer

Po 442 po 455


P0442 - Evaporative Emissions System Leak Detected (Small Leak)

P0455 - Evaporative Emissions System Leak Detected (Gross Leak)

This diagnosis detects leaks in the EVAP purge line using engine intake manifold vacuum. If pressure does not increase, the ECM will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition. The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.

Causes:
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
- Leak is in line between intake manifold

Solutions:
- Re-tighten or replace fuel tank filler cap
- Replace damaged or leaking EVAP canister
- Replace damaged or leaking lines.

Feb 10, 2011 | Chrysler Town and Country Cars & Trucks

2 Answers

Codigo p1440


EVAP System Vent Circuit Malfunction

This diagnosis detects leaks in the Evaporative Emission (EVAP) purge line using of vapor pressure in the fuel tank. The EVAP canister vent control valve is closed to shut the EVAP purge line. The vacuum cut valve bypass valve will then be opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP control system pressure sensor can now monitor the pressure inside the fuel tank. If pressure increases, the Engine Control Module (ECM) will check for leaks in the line between the vacuum cut valve and EVAP canister purge volume control solenoid valve.

Possible causes
- Incorrect fuel tank vacuum relief valve
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Leak is in line between intake manifold and EVAP canister purge volume control solenoid valve
- Foreign matter caught in EVAP canister vent control valve
- EVAP canister or fuel tank leaks
- EVAP purge line (pipe and rubber tube) leaks
- EVAP purge line rubber tube bent
- Blocked or bent rubber tube to EVAP control system pressure sensor
- Loose or disconnected rubber tube
- EVAP canister vent control valve and the circuit
- O-ring of EVAP canister vent control valve is missing or damaged
- EVAP canister is saturated with water
- EVAP control system pressure sensor
- Absolute pressure sensor

Possible solution
- Loose fuel filler cap
- Leaking fuel filler cap


Hope helps (remember to rate this answer).

Jan 05, 2011 | 2000 Hyundai Sonata

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