3548221C2 by Navistar International CAP, FUEL TANK FILLER NONLOCK (2024)

FAQs

Why is my fuel tank cap not sealing? ›

If the gas cap isn't closing properly, check the gasket to be sure it's not brittle or missing. If you have an old car or truck, be sure the metal gas cap isn't damaged or bent. Both a bad seal or bent gas cap can lead to the gas cap issues and might even require a replacement from the original manufacturer.

If the gas cap isn't closing properly, try checking the rubber seal to make sure it's not brittle or missing. If you own an old car or truck, be sure the metal gas cap is not bent or damaged. Both can cause gas cap issues and may even require buying a replacement from the original manufacturer.

It's strongly recommended that you don't drive if your car is missing its fuel filler cap, not only would your fuel evaporate, but spills onto the road can be dangerous for multiple reasons.

A non-secure gas cap will not only let fuel vapors escape the gas tank, but it can also let in grime and dirt. These fuel vapors may trigger errors in the emissions system, which would light up the check engine light. Dirt and Grime that gets into the fuel tank could also contaminate fuel injectors.

The gas cap will fail to click when the ratchet mechanism starts to fail. You will just need to replace the gas cap (with a factory part) and all will be well again.

If no luck go inside the boot and look just to the rear of the fuel filler cap many cars have an emergency release cable, if not you will need to remove the boot trim next to flap and carefully move your hand towards the fuel filler cap (you might not to be able to see the catch), where you will find the locking ...

The gas tank door latch relies on a spring clip or "M" clip to secure it in place. If this clip is damaged or has come loose, the door won't stay closed properly. 2. The hinge that connects the gas tank door to the body of the vehicle can also wear out or become damaged over time.

Size specifications for the filler cap can vary based on the make and model of a car, which means that even if you've bought the correct fitment type, it could be too small or too big for your filler cap neck.

Most fuel caps are universal and can fit in any car or SUV. But there might be exceptions.

Do you need a locking fuel cap? ›

Aside from the possibility of having some fuel sucked off by a low life, just protecting your fuel system from other scum bags is enough reason to invest in a locking gas cap!

If the gas cap is not closing properly, check the seal to make sure it isn't brittle or missing. If you own an older vehicle, make sure the metal gas cap is not damaged or bent. Both a bad seal or bent gas cap can lead to the gas cap issues and may require a replacement from the original manufacturer.

During long spells of dry weather, spilt diesel can also be more problematic as it is not washed away by the rain.

Although diesel has a much slower evaporation rate than petrol, fuel evaporation will still occur while driving if the system isn't properly sealed. The emitted fuel vapours will affect both the air quality and your car's fuel economy as the evaporated diesel is wasted before it reaches the combustion chambers.

If the gas cap is damaged or not properly sealed, it can allow gasoline to leak out of the tank. It's important to inspect your gas cap regularly to make sure it's in good condition.

A loose gas cap will not only let in grime and dirt, but it can allow fuel vapors to escape the fuel tank. These vapors can produce an error in the emissions system, which could cause the check engine light to illuminate. Dirt and Grime that gets into the fuel tank can also contaminate the injectors.

Typical self-sealing tanks have layers of rubber and reinforcing fabric, one of vulcanized rubber and one of untreated natural rubber, which can absorb fuel when it comes into contact with it.