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Leaking gas tank at vent line and fuel line,rubber gromet.

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6ya6ya
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Posted on Jan 02, 2017

wadembly
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SOURCE: husqvarna 145 bt gas leak

the fuel line is cheaper to replace than the tank the most common problem with weed trimmers & blowers is the fuel lines will rot & leak if there is a small hole in the line on top of the tank it will poor out if i can futher help e-mail me @ wadembly@aol.com thanks , wade

Posted on Jun 08, 2009

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Gas leak where gas lines enter and leave tank


Also, make sure that the vent for the fuel tank is working. the vent is either on the fuel cap itself or thru a device commonly known as a duck bill valve, so named because of the shape of the valve. All the vent does is allow a slight amount of air to enter the tank while the trimmer is running.

Apr 01, 2014 | Toro 2-Cycle 25.4 cc Straight Shaft Gas...

2 Answers

55 rancher leaks thru the gas tank vent


a small amount of fuel leakege shouldnt hurt anything most gas tank vents are in the fuel cap if so replace cap

Nov 15, 2011 | Husqvarna Chain Saw 20" Bar

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

1 Answer

What steps do I take to get a Yamaha EF1000 gas powered electric generator going again after it has been sitting around for years with gas in the tank? How do I drain the gas from the tank and carburater?...


You can disconnect the fuel line from the carb and drain the gas. It would be even better to then remove the fuel tank. If this is the generator with the large plastic tank, quite often the rubber gromet in the bottom of the tank with shout off vavle in it will deteriorate into a black gooey mess, and leak. If so that will have to be replaced. Clean inside of tank with fresh gasoline. Remove bowl from carburator and clean throughly. If you know how to work on engines, remove the carburator and clean throughly, notice how all springs and linkage were connected before removeal. Be sure all passage ways in carb are clean. Always use sta-bill in your gas.

Jul 23, 2010 | Yamaha Electrical Supplies

1 Answer

My tb425cs leaks gas when it is running. It drips from the bottom of the gas tank.


Be sure to not overfill the tank. Just load it with gas up to the bottom of the neck and be positive you're not cross-threading the cap when twisting it on. If it only leaks when operating, see if there is fuel bubbling out through the vent(s) in the top of the cap or out from under it. Also wipe the tank clean and dry to be positive it is not leaking from a seam or crack in tank or around fuel lines. If leaking from cap, might have to replace as they do have an internal rubber seal that could have gotten dry or cracked. If it's from the tank seams or fuel lines replacement may be neccessary of either one or both.

May 02, 2010 | Troy Bilt Tb425cs 26cc 4 - Cycle Curved -...

1 Answer

I had an emission test done on my 98 bonneville and it failed because code P0440 evap control system what should i do ?


Here's list why your car is coming up with this code. It could be any of these things causing it.
DTC detecting condition:
  • EVAP control system has a leak.
  • EVAP control system does not operate properly.
Possible cause:
  • 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
  • EVAP canister purge volume control solenoid valve
  • EVAP canister purge volume control solenoid valve and the circuit
  • Absolute pressure sensor
  • Fuel tank temperature sensor
  • O-ring of EVAP canister vent control valve is missing or damaged
  • Water separator
  • EVAP canister is saturated with water
  • EVAP control system pressure sensor
  • Refueling control valve
  • ORVR system leaks
  • Fuel level sensor and the circuit

Apr 01, 2010 | 1998 Pontiac Bonneville

1 Answer

Replacing fuel lines and filter in gas tank. How do I install new filter intank and connect to new fuel line when I can't reach inside the tank to hold the filter and plug in place while I press the new...


usually you can remove the tank and the hoses run thru a rubber gromet. pull that gromet and the hole is big enough for the filter to come out. makes it easy access. This all depends on the type or tool you have.

Oct 02, 2009 | Garden

2 Answers

Error codes P0442 and P0455 in Dodge Dakota 2001


Hello shoretex...Yes sir you can repair this yourself...
p0442 is medium leak detected ...p0456 is small leak....and p0440 is a general evap system failure.. evap codes are a common thing. gas caps are an inexpensive place to start. There are two types of evap hoses on the Dodge... hard plastic and soft rubber.... before you replace parts check the soft rubber first at the evap cans and pump located about a foot in front of the gas tank fill pipe on trucks located next to the transfer case or right behind the trans on the driver side. hard plastic lines will brake or rub through...check spots where lines come in contact with anything. this is a common thing with older trucks...hair line cracks will kick a p0442 code, and a p0445 code...When you find a leak, repair it, and rescan...sometimes there are several leaks, continue with inspection and repairs until you get it all fixed up.... Remember..start at simple and work from there...
i will post the evap. system in more detail to help you troubleshoot the problem.
EVAP System: The Evaporative Emission (EVAP) Control system used on all vehicles is the charcoal canister storage method. This method transfers fuel vapor from the fuel tank to an activated carbon (charcoal) storage device (canister) to hold the vapors when the vehicle is not operating. When the engine is operating, the fuel vapor is purged from the carbon element by intake air flow and consumed in the normal combustion process. The evaporative system includes the following components: *Fuel tank *Evaporative emission canister vent solenoid *Fuel tank pressure sensor *Fuel pipes and hoses *Vapor lines *Fuel cap *Evaporative emission canister *Purge lines *Purge valve solenoid EVAP System Operation: The EVAP purge solenoid valve allows manifold vacuum to purge the canister. The Powertrain Control Module (PCM) supplies a ground to energize the EVAP purge solenoid valve (purge on). The EVAP purge solenoid control is Pulse Width Modulated (PWM) or turned on and off several times a second. The EVAP canister purge PWM duty cycle varies according to the operating conditions determined by the mass air flow, the fuel trim, the engine coolant temperature, and the intake air temperature. For certain EVAP tests, the diagnostic will be disabled if the TP angle increases to above 75% . The evaporative leak detection diagnostic strategy is based on applying vacuum to the EVAP system and monitoring for vacuum decay. The fuel level sensor input to the PCM is used to determine if the fuel level in the tank is correct to run the EVAP diagnostic tests. To ensure sufficient volume in the tank to begin the various diagnostic tests, the fuel level must be between 15% and 85% . The PCM monitors the fuel tank pressure/vacuum level via the fuel tank pressure sensor input. Results of Incorrect Operation: Poor idle, stalling and poor driveability can be caused by the following: *Malfunctioning purge solenoid. *Damaged canister. *Hoses/lines split, cracked and/or not connected properly. Evidence of fuel loss or fuel vapor odor can be caused by the following: *Liquid fuel leaking from the fuel lines *Cracked or damaged canister *Inoperative canister control valve Vacuum hoses that are: *Disconnected *Mis-routed *Kinked *Deteriorated *Damaged The evaporative leak detection diagnostic strategy is based on applying vacuum to the EVAP system and monitoring vacuum decay. The PCM monitors vacuum level via the fuel tank pressure sensor input. At an appropriate time, the EVAP purge solenoid and the EVAP vent solenoid are turned on, allowing engine vacuum to draw a small vacuum on the entire evaporative emission system. After the desired vacuum level has been achieved, the EVAP purge solenoid is turned off, sealing the system. A leak is detected by monitoring for a decrease in vacuum level over a given time period, all other variables remaining constant. A small leak in the system causes DTC P0442 to be set. If the desired vacuum level cannot be achieved in the test described above, a large leak or a faulty EVAP purge solenoid is indicated. This can be caused by the following conditions: *Disconnected or faulty fuel tank pressure sensor. *Missing or faulty fuel cap. *Disconnected, damaged, pinched, or blocked EVAP purge line. *Disconnected or damaged EVAP vent hose. *Disconnected, damaged, pinched, or blocked fuel tank vapor line. *Disconnected or faulty EVAP canister solenoid. *Disconnected or faulty EVAP vent solenoid. *Open ignition feed circuit to the EVAP vent or purge solenoid. *Damaged EVAP canister. Any of the above conditions sets DTC P0440. A restricted or blocked EVAP canister vent path is detected by drawing vacuum into the EVAP system. The PCM turns off the EVAP vent solenoid and the EVAP purge solenoid (EVAP vent solenoid Open, EVAP purge PWM 0% ). The PCM monitors the fuel tank pressure sensor input. With the EVAP vent solenoid open, any vacuum in the system should decrease quickly unless the vent is blocked. A blockage is caused by the following conditions: *Faulty EVAP vent solenoid (stuck closed). *Plugged, kinked, or pinched vent hose. *Shorted EVAP vent solenoid driver circuit. *Plugged evaporative canister.

Good luck shoretex, hope this helps...please take time to rate me a fixya.

Jul 20, 2009 | 2001 Dodge Dakota

1 Answer

My Stihl MS-180be chainsaw is leaking a small amount of gas when full. What could be the problem? Is is the fuel line where it goes into the tank? The saw is working ok?


This saw has a fuel tank vent that could be leaking a small amount of fuel, or the fuel line coming out of the tank could be leaking. Fuel line replacement isn't complicated, you could try installing a new one. If it's the vent, odds are it's not enough to cause alarm........unless the vent line is cracked. In that event, you should replace the vent hose. Again, not a complicated repair.

Jun 13, 2009 | Garden

2 Answers

Acts like its running out of gas, raw gas smell


this suggests you have a fuel leak in the engine compartment. Possibly a leaking fuel manifold (injection rail), or the rubber line from the fuel tank is leaking where it attaches to the manifold. The fuel line to the cold start injector should also be checked. Rubber hoses on older cars become brittle and as they contract from very cold weather will leak. Turn the key to on for 1 minute but do not start the car. Then check under the hood for a raw fuel wet spot where the leak is.

Jan 10, 2009 | 2002 Subaru Outback

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