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Gas tank vent line issue on my 64 buick skylark

Vent line is blocked off in motor bay. Gas cap is not vented, traveling yesterday going up hill car sounded like it was struggling for fuel, then it would speed up. would vent cap correct issue?

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A 1964 Buick must have a vented gas cap.

Posted on Aug 10, 2017


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Posted on Jan 02, 2017

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SOURCE: 2008 street glide gas cap

Yes it is a vented cap which is stuck in the closed position. Get a new cap and you will solve your problem

Posted on Apr 07, 2009

  • 10 Answers

SOURCE: Fuel pump not coming on

fuel pump operation on your impala is controlled by the computer. It activates the fuel pump relay when ignition is turned on, but only for a few seconds. This is called the fuel pump prime. When the computer senses a crank signal (upon start up) it will activate the fuel pump relay constant. I have found more problems with the fuel pump relay than anything. Vapor lock will not cause a no start unless it is in the fuel lines. GM systems use the manifold air temp sensor to allow for quick starts when hot......increases fuel injector on time. An intermittant fuel pump relay or bad pump will cause a no start any weather.

Posted on Aug 07, 2009

  • 4070 Answers

SOURCE: Engine bogs down when going

Hi and welcome to FixYa!

Two things can cause this problem. I do suspect that you have fuel flooding. When you're uphill you tend to press the accelerator and while you floor it there's a lot of fuel coming in but can't be burned enough. The solution is to replace the spark plugs for it can be worn. Once the plugs are replaced you'll have a better fuel burning.

The other common cause is a faulty torque converter. The torque converter controls the shifting of the car. If the torque converter fails to shift you tend to press the accelerator and you'll surely have fuel flooding. Have the torque converter replaced too and you'll be good.

Hope this helps and thank you for using FixYa!

Posted on Nov 17, 2010

  • 376 Answers

SOURCE: 2006 torrent po446 code smoke

this could verry well be the gas cap vent broke, even if tightned still broke inside.if the smoke test was done correctly, then this should have been noticed.

Posted on Jan 05, 2011

  • 22246 Answers

SOURCE: Nissan Altima cranks, but won't start. Open the

no it has a closed system so no smell of petrol so their is something wrong with the suction pump and the pipes that come from teh engine compartment

Posted on Apr 04, 2011

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1 Answer

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2005 Electra glide turns off when going up a hill

Hi Anonymous, and the usual suspects are:
1. Severely discharged or damaged battery.
2. Loose, corroded or broken battery cable.
3. Alternator not charging or below normal rates.
4. Failed ignition coil, ignition/electronic module.
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8. Fuel tank vent system plugged or gas cap not venting.
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10. Fuel valve vacuum line broken or carburator vent line closed off.
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How do I reset the check engine light? Auto Zone said it was a bad gas cap. I bought a new one & it still stayed on. They re-checked it and turned it off for me, but now it popped back up. Same reading....

should not need a new cap ? there is a vent in the tank that is controlled by the engine being started. underneath the back of the car there is a pipe that comes from the top of the petrol/diesel tank follow the pipe to the engine bay looking at the pipe looking for damage. in the engine bay it will go to a vacuum pipe with a valve on it. that would be the fault has 2 wire on it to say when it is open. on some models its electric controlled and have 4 wires. some times the part were it vents out can get blocked and the ecu will read it is closed. it is mostly down to dirt and grim blocking it up just will need a clean out.

Oct 15, 2013 | 1997 Buick LeSabre

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P0455 evap control system gross leak detected on 1998 volvo s70

The code means the computer tried to vent the gas tank and found a huge leak in the vent system. Issue could be a faulty gas cap, leaking gasket on the gas tank, or broken line from the tank to the vapor canister.

Sep 26, 2012 | 1998 Volvo S70

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Service engine soon light came on, replaced gas cap it went off but a week later it came back on, when it try to fuel the truck it spill the gas back out like it is a full tank

One of the most common causes, is blockage in the venting system from fuel entering the vent lines and into the charcoal canister, the fuel gets absorbed by the charcoal canister causing it to swell and block vent lines. the gas tank contains both fuel and air. when you fill it up the gas displaces the air and the air has to go somewhere. but the air that is displaced is full of gas vapor so the gas vapor goes to the vent lines and into the charcoal canister, when the charcoal canister swells up it prevents the air from escaping the tank, canister could be clogged,canister filter may need replacement,electrical connection to the close valve may be open,canisterf might be damaged,purge valve from canister might be clogged,vent hoses might be clogged, the vent hose could be clogged, or the vent hose may have a kink. all this is caused by overfilling the gas tank, getting that last drop of gas in the neck of the fill tube.
good luck!

Aug 11, 2011 | 2005 Nissan Titan

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2006 torrent po446 code smoke test done no leaks new sensor on gas tank and cannister sensor on motor not stuck open vent lines to cannister not plugged or to gas tank new gas cap

this could verry well be the gas cap vent broke, even if tightned still broke inside.if the smoke test was done correctly, then this should have been noticed.

Jan 04, 2011 | Pontiac Torrent Cars & Trucks

2 Answers

Gas tank making loud whinning noise when i take the gas cap off. what could be the problem?

assuming from the noise i am assuming your opening the gas cap while the engine is running. that noise your are hearing is prob the fuel pump. your really not supposed to open the gas cap while the engine is running. pressure is needed inside the gas tank for everything to work properly. after a while of doing so you may get a emissions code for either a small or a large leak. i recommend when pumping gas to shut the engine off to eliminate any future problems that could happen.

Dec 27, 2010 | 2004 Chevrolet Suburban

2 Answers

2002 Buick Century, when the tank is 1/4 full,

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction

The evaporative emission control system checks to make sure there are no leaks in the lines that run from the gas tank to the charcoal canister and up to the engine. It also checks to make sure the gas cap is sealing correctly.
It may just be that the cap was not on tight and the code was tripped.

A dusty environment can also clog the vent line and cause this code.
Have the code cleared and see if it comes back. Some auto parts stores like Auto Zone can read and clear the codes for you.
Hope this helps.

Sep 02, 2009 | 2002 Buick Century

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