- Seals off your fuel tank and prevents contaminants in your gas supply
- Plays an important role in the EVAP system
- Easy to replace on your own
The Fuel Tank Cap on your Nissan isn't commonly talked about. You twist off the Fuel Tank Cap, fill up your tank, then secure it in place again every time you get fuel, but you likely don't give this part another thought.
Your Fuel Tank Cap serves an important purpose in the overall function of your Nissan. For starters, it provides a seal for your fuel tank and stops moisture, debris, and dirt from getting into your gas supply. But here's another thing: the Fuel Tank Cap is also a component of your Nissan's evaporative emissions system (or EVAP).
When you're driving, your fuel temperature rises, and it emits harmful fumes. Fortunately, with the help of the Fuel Tank Cap, your EVAP system can safely contain and recirculate those emissions to keep them from leaking out into the surrounding atmosphere.
If your Fuel Tank Cap doesn't make clicking sounds when it screws onto your fuel tank, or if it loosens on its own after you've already tightened it, you're likely dealing with an old or damaged cap. Since this part is a component in your EVAP system, your dashboard engine light may illuminate if your gas cap is malfunctioning. Other indicators of a damaged or worn Fuel Tank Cap can include gasoline odors while the engine is running and lower fuel mileage (with no change in your driving habits).
Consider the downsides to a Fuel Tank Cap that's no longer functioning correctly. A Fuel Tank Cap that doesn't seal properly may push harmful emissions into the air around your Nissan, but it may also cause costly wear and tear inside your Nissan and its engine. A broken Fuel Tank Cap can diminish engine performance, lessen your fuel efficiency, and cause fuel leaks. It's wise to replace your Fuel Tank Cap as soon as you realize that it is not operating as it should.
Replacing a damaged Fuel Tank Cap is simple, and you don't need special tools to do it. All you need to do is shop genuine Nissan parts online to ensure a seamless fit for your vehicle.
This Fuel Tank Cap (reference number 17251ET01A) will fit your Nissan Sentra. See the What This Fits tab for further info.
CAP ASSY-FILLER
Fits Sentra