Review: 2008 Chevy Cobalt Gas Tank

Spectra Premium® Chevy Cobalt 2008 Fuel Tank Filler Neck


The 2008 Chevy Cobalt is a popular compact car that offers good fuel economy and reliability. However, like all cars, it has its issues. One of the most common problems reported by owners is a leaky gas tank. In this article, we will explore this issue in more detail and provide tips for addressing it.

What is the problem?

The gas tank in the 2008 Chevy Cobalt is made of plastic, which can be prone to cracking over time. This can cause fuel to leak out and create a serious safety hazard. In addition, if the problem goes unchecked, it can lead to reduced fuel efficiency and increased emissions.

How to tell if your gas tank is leaking

The most obvious sign that your gas tank is leaking is the smell of gasoline. You may also notice a puddle of fuel under your car or a drop in your fuel gauge even though you haven’t driven very far. If you suspect that your gas tank is leaking, it’s important to take action right away.

How to fix the problem

If you have a leaky gas tank in your 2008 Chevy Cobalt, there are a few things you can do to address the issue. The first step is to take your car to a trusted mechanic who can inspect the tank and determine the best course of action. In some cases, a simple repair may be all that’s needed. For example, the mechanic may be able to patch a small crack or seal a loose connection. However, if the damage is more significant, you may need to replace the entire gas tank.

How much does it cost to fix a leaky gas tank?

The cost of repairing or replacing a leaky gas tank can vary widely depending on the severity of the damage and the type of repair needed. In general, you can expect to pay anywhere from a few hundred to a few thousand dollars.

Preventing future problems

To prevent future problems with your gas tank, it’s important to take good care of your car. This means regularly checking your fuel lines, keeping your tank at least half full, and avoiding driving on rough roads whenever possible. In addition, it’s a good idea to have your car inspected by a mechanic at least once a year to catch any potential issues before they become major problems.


If you own a 2008 Chevy Cobalt, it’s important to be aware of the potential for a leaky gas tank. By taking action right away and working with a trusted mechanic, you can address the issue and prevent it from causing further damage. Remember to take good care of your car to prevent future problems and ensure that it continues to run smoothly for years to come.