Fuel Tank Cap Vent Is Clogged

Not only can this boat fuel tank vent cause issues when filling up but it can also starve the engine of fuel and leave you stranded.

Fuel tank cap vent is clogged.

In order to breathe your tank must have a vent somewhere that will relieve both vacuum and pressure. What happens when a tank vent gets clogged on a w123. For anyone that doesn t think the lift pump on a om617 can practically suck a golf ball through a garden hose here are two pictures of my fuel tank when the vent became fully blocked for some reason on a 3 200 mile round trip. If the fuel cap vent is clogged air won t be.

With the hose off blow on the other end and see if air comes out. The vent hose had been shoved down creating a sag or belly and causing fuel to become trapped in the line which blocked the tank s ability to vent. Unhook or unscrew the carburetor box cover on top. The fuel level of your tank changes throughout the day even if you are not driving it.

Most people are not even aware such a problem can occur or what it might lead to. Step 1 switch the stihl chainsaw s master control lever into the stop position and set the saw on a flat workbench. If your motor runs for a few moment and then dies but starts back up this tip may be for you. Gasoline expands in volume as it warms up and shrinks in volume as it cools down.

As fuel is consumed by the engine the level in the fuel tank lowers. Modern vehicles have a vent hose that is part of the fuel system. In this video i show you an easy way to check if your fuel cap is venting properly. When this line is.

The tank vent cap sits on top of the fuel tank and allows these heated gasses to escape. To make up for this the fuel cap uses a small vent to allow air to enter the tank. Once you get to these hoses remove the vent hose which is most commonly a 5 8 vent hose. Find the access to the fuel tank fill and vent fittings on top of the fuel tank.

Able to enter the tank and a vacuum or vapor lock will occur. A fuel cap that does not vent properly may cause your engine to not run p. Your tank has to breathe. Is the fuel tank vent clogged at the fuel tank fitting.

A car s fuel tank is much more than a tank with a fuel hose leading to it. This stops the flow of fuel to the carburetor causing the engine to stall.