Replacing a gas cap

Replace a missing or broken gas cap with a genuine Mopar factory part from JustforJeeps. Our CEO is working overtime to fulfill orders! Orders will be shipped via standard shipping 3 to 15 business days.

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Gas Cap Replacement at your home or office

As expected December 26, No problems, I would endorse this product. Always go to the Source! December 4, I bought my used Jeep, and it had no gas cap. My husband went to the parts store to grab one because my check engine light was on.

I ordered one from justforjeeps and it fit perfectly along with the check engine light going away for good. Great December 2, This page is for personal, non-commercial use.

How Long Does a Gas Cap Last?

The gas cap, also known as the fuel filler cap, is a simple but important component that is found on the vast majority of road going cars and trucks. Their purpose is simple; to prevent dirt, debris, and dust from entering the gas tank, as well as providing a reliable seal. Because the cap is frequently removed, every time fuel is added to the vehicle, it can wear out over time and will need to be replaced. Usually a bad or failing gas cap will produce a few symptoms that can alert the driver of a potential issue.

One of the most common symptoms of an issue with the gas cap is a cap that does not tighten properly. Most gas caps are designed to click once they are tightened sufficiently. If the cap does not click, or clicks and then pops loose again then that may be a sign that it may need to be replaced. Another symptom of a possible issue with the fuel cap is a fuel smell from the vehicle. If the gas cap seal becomes damaged or worn it may cause fuel vapors from the gas tank to leak from the filler neck.

This may result in a gasoline odor from the vehicle as a result of the escaping vapors. An improperly sealing fuel cap may cause an evap system leakwhich will set off the Check Engine Light when the the computer detects the leak.

The Check Engine Light can also be set off by a wide variety of other issue so having the computer scanned for trouble codes is highly recommended.

A bad or failing fuel cap will not necessarily cause major performance issues, but it can set off the Check Engine Light, which will prevent the vehicle from passing an emissions test.

If you suspect that your gas cap may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the cap should be replaced. This article originally appeared on YourMechanic. Autoblog is partnering with YourMechanic to bring many of the repair and maintenance services you need right to you. Get service at your home or office 7 days a week with fair and transparent pricing. We get it. Ads can be annoying. But ads are also how we keep the garage doors open and the lights on here at Autoblog - and keep our stories free for you and for everyone.

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You still haven't turned off your adblocker or whitelisted our site.This system monitors a number of engine and emissions-related components to ensure that everything is in working order.

If your gas cap is not properly attached, you may see a "Check Engine" light or a "Loose Cap" warning light on the dash. You can either tighten the cap and wait for the system to reset itself when it determines the problem is fixed, or you can use an OBD-II code scanner to manually reset the system. Turn off your vehicle's engine. Push button to unlock the gas cap door, if your vehicle is equipped with a locking gas cap door. This is usually located on the floorboard next to the driver side seat, or beneath the steering column.

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Step to the gas cap door. Open the door. Grasp the gas cap handle and twist it counterclockwise to unscrew it. Remove it. Replace the gas cap. Removing and replacing it ensures the thread seals properly, in case it wasn't before.

Turn the gas cap clockwise to tighten it. Continue turning until you hear it click three times. This ensures it's seating properly. Close the gas cap door. Return to the cabin. Crank the engine and drive your vehicle for a day.

replacing a gas cap

This port looks similar to a computer printer port. Push the "Reset" button on the code scanner to clear the system. Continue driving the vehicle. Pay attention to the dashboard warning lights to ensure the light does not come back on.

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If it does, the gas cap may be faulty. Visit an automotive parts store or dealership service department to order a new gas cap. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.October 1, References.

To create this article, volunteer authors worked to edit and improve it over time. This article has been viewed 38, times. Learn more Installing a new gas cap is a very simple procedure, but the exact steps can vary depending on the type of gas cap you have. Before you can install a new cap, you must also know how to remove the old one. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Log in Facebook.

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Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Learn why people trust wikiHow. Explore this Article parts. Tips and Warnings. Things You'll Need. Related Articles. Authored by the wikiHow Community Community of editors, researchers, and specialists October 1, References.

replacing a gas cap

Part 1 of Unwind the leash. Grab your new gas cap and unwind the leash by rotating it around the cap in a clockwise direction. The leash should spin around the gas cap very easily. Use a high-quality gas cap. A good gas cap is safer and more fuel-efficient. Moreover, quality gas caps will have a leash on them that can connect to your car.

Connect the leash. Press the locking peg at the end of the leash into the hole in the door of your fuel tank.You may be surprised to know that a leaking gas cap can contribute significantly to your car's fuel costs.

One way to prevent unneeded costs is to simply replace the leaking cap. Here's what you should do. Before acquiring a new one, think about whether you need a gas cap that locks to prevent a gas thief from stealing your gas. But keep in mind, if you put one of these caps on your car, your spouse or children who put gas in your car will need the gas cap key.

When you actually replace your gas cap, you may need to remove a retention ring that keeps the cap attached to your car. If you do, you can remove it simply by using a pair of needle-nose pliers. Just slip one tip of those pliers under the ring edge; then close the pliers and pull the ring off the old cap and slip it over the new cap.

Your car may have a sensor light that will illuminate when you change your cap. If so, drive your car a few miles to see if the light goes off.

If it doesn't, see your repair mechanic to fix the problem. We welcome your comments and suggestions.

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All information is provided "AS IS. All rights reserved. You may freely link to this site, and use it for non-commercial use subject to our terms of use. View our Privacy Policy here. Toggle navigation subscribe. How to Replace a Gas Cap. Written by Garry Steck. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience.

What You'll Need. New gas cap. Needle-nose pliers. Step 1 - Determine Your Type of Gas Cap Before acquiring a new one, think about whether you need a gas cap that locks to prevent a gas thief from stealing your gas. Step 2 - Remove the Cap Retention Ring When you actually replace your gas cap, you may need to remove a retention ring that keeps the cap attached to your car.

Step 3 - Check the Warning Sensor Light Your car may have a sensor light that will illuminate when you change your cap. Popular Articles. How to Repair a Fuel Cap.The fuel that resides in your gas tank is used to power your vehicle and to supply the material needed for the combustion process.

Making sure that the gas in the tank stays at the right consistency is important in the running of the vehicle. The job of the gas cap is to make sure that no trash or water gets into the fuel supply through the filler neck.

The gas cap screws into the top of the filler neck and has a seal that helps to keep the trash out. The gas cap is used all of the time, which means that you will have to get the cap replaced eventually. The gas cap can last up to 50, miles and in some cases longer if it is properly cared for. Not having this type of protection in regards to the gas supply in a car can lead to a variety of different issues.

If the gas cap lets trash and dirt in the gas supply, then it will usually result in the fuel filter being clogged. A bad fuel filter will lead to a restriction in the flow of gas, which means that it will be very hard for the car to run normally. The best way to detect damage with a gas cap is by taking the time to inspect it on a regular basis. Usually, you will be able to tell if the gas cap is damaged and getting it fixed in a hurry can reduce the damage it may do.

There are a number of different types of gas caps out there and selecting the right replacement will take some time and effort on your part. Putting a new gas cap on a car will help to reduce the amount of trash that is allowed to get into your fuel supply. Getting a professional to offer advice regarding what type of gas cap to get can reduce the chance for error. Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. When a gas cap is in need of replacement, here are some of the things that you may notice: The Check Engine Light is on The seal on the gas cap is visibly damaged The threads on the gas cap are worn or stripped out The gas cap has been lost Putting a new gas cap on a car will help to reduce the amount of trash that is allowed to get into your fuel supply.

Schedule Gas Cap Replacement. Service Area. Average rating from 37 customers who received a Gas Cap Replacement.

replacing a gas cap

Gas Cap. Home Articles. The statements expressed above are only for informational purposes and should be independently verified.

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Recent Gas Cap Replacement reviews. Excellent Rating. Average Rating 4. Number of Reviews Rating Summary. James 29 years of experience. Request James. James is the best you can get! Not only does he fix everything he lets you know if you have any other issues and even shows you how you can fix it yourself.A fuel cap for an automobile is made of metal or plastic.

It secures the entry to the fuel tank. Most fuel caps have threads, which are fixed to the tank pipe with matching threads. A rubber gasket at the top gets compressed when the cap is fixed and stops the leakage of fuel. The gas cap has air vents to allow the air to enter into the tank to maintain pressure.

Generally, gas caps can be used as a closure for the fuel tank. On newer cars, the emission control has an engine light, which turns on when there is a leakage. If the seal is damaged or the cap cannot properly seal the tank, the lights will glow continuously.

replacing a gas cap

When you have problems you think might be associated with your fuel cap, try these troubleshooting tips. If you think your gas cap might be faulty, check that it is screwed on properly. Cleaning the cap and greasing the gasket may also help create a reliable seal. Next, check the gasket for excessive wear or find a replacement. Check your car manual to find specs for the fuel tank cap and its gasket and check with supply store to get the right type of cap gasket for your car.

Select a suitable gas cap gasket. Do not try to substitute it with another type, even if it looks similar. You may be able to repair your old cap. However, it will depend on the design and make of your vehicle. Find the orientation marks on the top of the cap. It is a white dot on the edge of the cap. Before disassembling the cap, mark on the bottom side of the cap using a marker that will be visible. Unroll the edge of the bottom part of the gas cap with a pair of needle nose pliers to separate it from the cap.

The cap has three portions: the top, the middle, and the bottom. Disassemble the gas cap parts. Make a sketch or take a few pictures before removing the parts and mark them for easy re-assembly. The inside portion will disassemble into numerous parts to reveal the valve and spring etc. There are O-rings also. These parts cannot be purchased separately. Open the parts. You may find a lot of orange sticky fuel residues on the parts. Wash them with lacquer thinner to remove the residue.

Mopar Factory Gas Cap (52030377AB) for Multiple Jeeps*

Dry the parts after cleaning and washing. Reassemble the cap inside portion. Insert the top and the bottom portions. Keep pressure on the lower part when rolling its edge over the top to properly position the o-rings. Replace the gasket if it is cut, squeezed, or damaged. The gasket becomes hard with time.


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