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Fuel Leak I have a RGBV 3100 Mulching Blower Bacuum. It leaks profusely from one of the two fuel tube connections to the fuel tank. The leak occurs at the connection of the tube from the thumb press used for starting the device. The fuel tube to the motor from the fuel tank has a plastic gland. The leaking tube has no such gland. How do I seal this leaking tube going into the fuel tank?

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  • Anonymous Mar 20, 2014

    I have a model BL30, the gas cap has leaked repeatedly. Has there been a recall on this or replacement parts available. Either the cap or the tank are the issue.

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  • 49 Answers

Recommend replacing the fuel lines. They only last a couple of years before they get brittle. The fuel line if very inexpensive and can be found just about anywhere.

Posted on Jan 30, 2009

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Caant find the fuel leak in my 1994 chevy S 10


Is the fuel actually leaking to the ground or do you just smell fuel? If it's actually leaking, then you need to determine what is in area where the leak occurs and carefully inspect everything above that area. If you're not quite sure where under the vehicle the leak is coming from, place a piece of paper or cardboard under the parked truck and wait for the drip, then look up from that same area while wearing safety glasses at a minimum. If you just smell fuel but don't actually see a leak, then try to determine if the smell is stronger from the front or rear of the vehicle. If stronger in the rear, it could be a rust hole in the fuel filler tube, a hole in the fuel tank, a rusty fuel line, etc.

There are also combustible gas leak detectors which could help you pinpoint the source of the leak if you are patient enough and the leak is not too large. You'd want to use that with the vehicle parked outside though so there is plenty of air circulating around and underneath the truck.

Oct 29, 2017 | Cars & Trucks

1 Answer

2000 Town Car - 3 codes (P0307 - I believe misfire on #7) but P0430 & P0442 I don't know


P0430 - Catalyst System Efficiency Below Threshold (Bank 2) Indicates Bank 2 catalyst system efficiency is below the acceptable threshold.
  • Use of leaded fuel
  • Damaged HO2S
  • Malfunctioning ECT
  • High fuel pressure
  • Damaged exhaust manifold
  • Damaged catalytic converter
  • Oil contamination
  • Cylinder misfiring
  • Downstream HO2S wires improperly connected
  • Damaged exhaust system pipe
  • Damaged muffler/tailpipe assembly
  • Retarded spark timing
Compare HO2S upstream & downstream switch rate. Under normal closed loop fuel conditions, high efficiency catalysts have oxygen storage which makes the switching frequency of the downstream HO2S quite slow compared to the upstream HO2S. As catalyst efficiency deteriorates, its ability to store oxygen declines and the downstream HO2S signal begins to switch more rapidly approaching the switching rate of the upstream HO2S. Once beyond an acceptable limit the DTC is set. Catalytic converter bad !


P0442 - EVAP Control System Leak Detected (Small Leak) The PCM monitors the complete EVAP control system for presence of a small fuel vapor leak. The system failure occurs when a fuel vapor leak from an opening as small as 1.016 mm (0.04 inch) is detected by the EVAP running loss monitor test.
  • After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications
  • Small holes or cuts in fuel vapor hoses/tubes
  • Canister vent solenoid stays partially open on closed command
  • Damaged, cross-threaded or loosely installed fuel filler cap
  • Loose fuel vapor hose/tube connections to EVAP system components
  • EVAP system component seals leaking (EVAP canister purge valve, fuel tank pressure sensor, canister vent solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly)
EVAP Leaks P0442 and P0455

May 27, 2017 | Lincoln Town Car Cars & Trucks

1 Answer

Where is the fue pump located on an 97 buick lesaber


The fuel pump is located inside the fuel tank. If you have a major leak, there are a few things it could be. The filler tube you put gas into during a fill-up goes directly to the fuel tank. The filler tube may have a hole in it; If your tube is rubber, the clamp at the fuel tank may need replaced; you may have a fuel line leaking near the fuel tank, The fuel tank may have a hole in it. A fuel leak is a hazardous situation, so take extra precautions to be safe and have it repaired asap.

Oct 17, 2012 | 1997 Buick LeSabre

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

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Jul 19, 2010 | 1996 Ford Explorer

1 Answer

Gas leak


It could be from the gasket on your fuel tank float.

Jan 30, 2010 | Harley Davidson XL 883L Sportster...

1 Answer

Fuel leak after I shut off the blower and set it down.


Well, if gas is running through your engine and out the muffler, there's a lot of fuel inside the crankcase and I doubt that you would be able to start it. My thought is that there is a cracked fuel line or fuel tank, with emphasis on the fuel line. You may want to take some housing parts off to see if you can see a drop of fuel hanging on the fuel line where it may be dripping and running over to the muffler area.

Oct 31, 2009 | Troy-Bilt 31cc 2-Cycle Gas Powered...

1 Answer

Fuel leaking out near the filler tube. would this be fuel line coming out the tank? The fuel leaks out only when the ingnition is on and the engine running.


if it is after the car have run or while on park i should say its the line coming from the tank. But since its while the car is running then its the fuel lines that is connected to the fuel pump .It will leak because of while the car is running , the fuel from the tank going to the filler tube . then it will pass to the fuel pump and it will leak while the car is running . therefore you should check on the fuel line that is connected to the fuel pump, which near the filler tube.good day.

Aug 01, 2009 | 1998 Ford Ranger SuperCab

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

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

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