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How To Fix A Leaking Gas Tank

When driving a car, a leaking gas tank isn’t the most common problem but could be your worst nightmare. Gas leaking from car is quite risky, if not repaired. Besides costing you a lot of money in wasted fuel, it can be lethal in case of an explosion or fire. Gas tank leak repair, however, is not that expensive. In this article we have focused on the popular reason behind the ways of how to fix a leaking gas tank.

Common causes of gas leaking from car

  • Sharp objects: Gas tank leak may happen because of sharp objects like rocks, which are thrown up by the car’s tires. The serious collision will cause small holes of gas tank, then it starts leaking. Punctured gas tank should be replaced as soon as possible.
  • Corrosion: In some areas, snow and salt will corrode your car tank more than usual. Depending on the position of the leak, there might be a serious risk that the leak which becomes worse if it isn’t fixed.
how to fix a gas leak in a car
How to fix a leaking gas tank

How to fix a leaking gas tank

You can get your gas tank repaired by mechanic. They might only repair it without fully replace it and show you the reason behind the leak. Moreover, it is always advised to go for some effective maintenance tips by experts for more understanding.

However, if you want to save more, you can do the gas tank leak repair job at home. But to do so, you should have the basic understanding of how it works. It will not take you more than $100 to get the job done. Keep reading to know the detailed stages how to fix a leaking gas tank efficiently.

how to patch a gas tank
How to patch a gas tank

Necessary Tools

  • Clean towel or rag
  • Filtration mask
  • Safety glasses
  • Jack stands
  • Sandpaper
  • Gas tank repair epoxy putty compound
  • Rubbing Alcohol or other degreaser
  • Car jack
  • Vinyl or kitchen gloves

How to do

Step 1: Jack up the vehicle

Firstly, you need to lift the car to a height where you can easily insert jack stands underneath it. Now, you slowly lower the jack to maintain a height where you can easily get underneath the vehicle and perform the repairing task.

Step 2: Locate the leak or hole in the gas tank

Once you are under the gas tank, check it carefully to locate the source of leakage or small holes dripping gasoline. Notice that in some case, the hole is obviously small and hard to find.

Step 3: Sanding the leaky area

Now sand the holes using sandpaper. You need to cover an are of 1.5 to 2 inches around the hole.

Step 4: Wipe the surface

After you are done sanding, use a degreaser to wipe the are with a towel. You can also use alcohol. Make sure all grime, dirt, and grease are cleaned away.

How to fix a leaking gas tank
Gas tank leak repair

Step 5: Blend the epoxy

For mixing the epoxy compound, the manufacturer’s manual will come handy. Use compounds from two different tubes to create a mixture and use it before it dries up. The instructions for mixing the compounds are usually written on the packet.

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Step 6: Shape and apply the epoxy

Now, from the mixture, you cut a piece of about 1-1.5 inches. And, create a small shaped cone using the epoxy compound with a wider base at the bottom and a tip at the top

Step 7: Press the epoxy in the hole

Next, you use the top of the cone to fill in the hole in the tank. Keep pressing the epoxy until it fills the hole or holes for good and use the remaining to smooth the sanded area. A little bit water can make the smoothening process easy.

Step 8: Fill the tank with gas

This is the last step in your gas tank leak repair job. Fill in the tank to the fullest, as you normally do. Once the tank is filled, look out for any signs of leakage. If you followed the above mentioned steps properly, the leak should be sealed for good and you can take credit for a successful gas tank leak repair job.