Skip the auto shop - Our mechanics make house calls

Q: What Prevents Gas From Leaking?

asked by on

What prevents gas from leaking?

A: There are several components of the fuel sy...

There are several components of the fuel system that have been designed to prevent gas from leaking during the fuel delivery process. The fuel tank is made of hardened plastic called polyethylene. These tanks are tightly sealed and designed to prevent leaks for an extended period of time. However, fuel tank leaks are possible and most often happen as a result of corrosion or damage to the fuel tank. The fuel lines are made of hardened plastic or a strong rubber material. Rubber lines are less likely to break and thus are more effective in preventing gas leaks. Rubber seals for the fuel injector, fuel rail, and the fuel pressure regulator are designed to withstand the high pressure of the fuel from the fuel injector and the corrosive properties of the gas to prevent gas leaks. Over time, these rubber seals may wear or break and gas leaks happen when fuel escapes these seals. Gas leaks are extremely dangerous because of how flammable gas is and should be addressed immediately, in the event of a leak in the fuel delivery system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What's a defective fuel shutoff valve? Jeep - year unknown

Hello - you don't mention a year for your Jeep, so I'll take a shot at what is meant by "fuel shutoff valve". In the fuel injection system, there is a fuel check valve, which keeps a small amount of...

Q: Does using heat burn extra fuel?

Hey there. The heater in the car only requires the use of the heater blower to blow hot air out of the heater case. The heat is generated by blowing hot air across the heater core inside the A/C blower...

Q: Oil leaking from oil pan in 1999 Ford-150

You have to figure out where it's leaking from. Look at that video that I showed before, "finding and fixing car oil leaks" with a UV leak dye. If it's just leaking around the seam, you need a new gasket....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...