fuel vapor line is common in the car fuel line
A vapor leak in the fuel system.A vapor leak in the fuel system.
Vapor lock is a condition when liquid fuel turns to fumes in the fuel system causing it to lose pressure and cause fuel delivery problems. It is not actually a lock.
Overfilling the fuel tank with gas could be a reason.
Carburated vehicles used fuel pumps that produced very low pressure. Typically the pressure on carburated vehicles was around 1/4 to 1/2 psi. The boiling point of gasoline is actually not very high and if the fuel pump is not able to maintain pressure and/or the temperature of the fuel line BEFORE the fuel pump starts to rise above the boiling point the fuel flashes to vapor and now the fuel pump is attempting to pump vapor or the fuel between the pump and the carb flashes to vapor, the condition is called "vapor lock". Fuel pumps are designed to pump liquid. Once the pump starts getting vapor instead of liquid fuel, it is unable to maintain the fuel level in the carb. Sometimes a new fuel pump can help resolve a vapor lock problem, other times it is just a matter of heat on the fuel line somewhere. An old trick was to put an electric fuel pump on a vehicle somewhere well back of the engine. Let me know how it works out.
Large fuel vapor leak. Check for a loose gas cap or a cracked fuel vapor hose from the tank to the engine.
According to the PT Cruiser service manual the vapor cannister is on the fuel tank.
The vapor canister is under the vehicle, mounted next to the fuel tank.
Gasoline vaporizes in a fuel line and obstructs the flow of liquid fuel.
A 1986 Ford F-350 may experience vapor lock if the fuel line is exposed to excessive heat. This allows the fuel to boil and prevents the carburetor from receiving a constant supply of fuel.
Either the gas cap is loose, or there is another large vapor leak in the fuel system.Either the gas cap is loose, or there is another large vapor leak in the fuel system.
Are you certain that you are having Vapor lock ?? I haven't seen a true case of vapor lock in years...and i own a shop. Vapor lock (also called percolation) occurs when the gasoline in the fuel line boils. the fuel must get very hot for this to happen. Usually it happens on a hot summer day and the fuel line is placed too closely to an exhaust manifold. In almost every case of vapor lock i have ever seen, the car was not fuel injected but carburetted. The cure is to re-route the fuel line away from heat sources under the hood. But i must say that i would be surprised if you have an actual case of vapor lock. It is rare.