When the leaves start changing, most of us put away our lawn mowers for the winter. This process should begin with an inspection of the gas cap itself. With the gas cap removed from the vehicle, insert the key into the locking mechanism and turn the key to the "unlock position." When this occurs, it can negatively impact the car owner's ability to put fuel inside their tank and may render the vehicle "shut down" until it's removed. Like any other mechanical component failure, there are a few things you can do to troubleshoot why the gas cap won't come off, as well as a few methods for removing it, so that you can replace the gas cap or repair damage to the gas tank itself. Under many conditions, including excessive heat, dramatic changes in barometric pressure or altitude, or when the fuel tank is running very low, the gas tank can create a vacuum-like seal around the gas cap, which seals the cap tight. Purchase a new locking gas cap or standard OEM gas cap and install on your fuel tank. If the gas cap seal becomes damaged or worn it may cause fuel vapors from the gas tank to leak from the filler neck. Please see our, Kia Optima - Oil Change - Mableton, Georgia, Was on time (early), identified other problems and sent me quotes. There are some occasions when the filler housing where the gas cap is inserted may be the reason why it was stuck. Step 2: Inspect the lock on a locking gas cap. However, there are some situations that occur where the gas cap is stuck and won't come off the vehicle's fuel tank. This high pressure situation creates a vacuum seal that makes it nearly impossible to unscrew your gas cap. Most Common Solution. These valves are controlled by the PCM so the circuit will not be closed until commanded by the PCM and that closure can be through the ground side. $14.18 $ 14. When the lock is damaged, these "locks" or tumblers will fail to open; which is what commonly causes the gas cap to spin freely. We use cookies to make wikiHow great. Most modern lawn mowers have a fuel filter that is in line with the carburetor. If the lock is damaged, it can cause the gas cap to spin without coming loose. In general, there are three common reasons why your gas cap might get stuck: The gas cap is vacuum sealed: The fuel tank needs to have constant pressure inside the fuel cell in order to distribute fuel to the pump and eventually to the engine. References. With the gas cap removed from the vehicle, insert the key into the locking mechanism and turn the key to the "unlock position." Every dollar contributed enables us to keep providing high-quality how-to help to people like you. Look underneath the cap to determine if the locking bracket moves inward. But with the arrival of COVID-19, the stakes are higher than ever. How to Troubleshoot a Parking Brake or Emergency Brake That Won't Engage, How to Troubleshoot a Small Engine Problem. $15.95 $ 15. He solved my problem very quickly and explained what had happened. Step 2 Set the can next to the vehicle or tank to which you want to add fuel. Remove the gas cap. FREE Shipping. Thanks to all authors for creating a page that has been read 37,101 times. Once the gas cap is removed from the vehicle either by yourself or a professional mechanic, inspect the a few individual components that may have caused the gas cap to stick or spin freely without being able to come off. Step 5 Remove the Arnold Siphon Pump and add new gas. Your Your car contains a vast number of different systems, all of which must work in harmony to ensure proper operation. Went above and beyond to ensure job was done right, GMC Envoy - Gas cap won't come off - Hermitage, Tennessee. Lawn Mower Fuel Cap. If it does not, this may have been the reason why the gas cap was unable to be removed without tools. Then remove the ignition key and disconnect the spark plug wire to prevent accidental ignition. Also one that has held a gas-and-oil mixture? Generac 189135GS Lawn Mower Fuel Cap Genuine Original Equipment Manufacturer (OEM) Part. This debris can get trapped in the threading. Other problems, such as a lack of or a weak spark at the spark plug, can also render a mower useless. Include your email address to get a message when this question is answered. Fuel smell from the vehicle. The 6-position dual-lever wheel adjusters ensure you can cut grass to your preferred specifications by easily adjusting the cutting height. Remove the dust cover off the spout of the can. Replacement part For Toro Lawn mower # 55-3570 GAS CAP ASM. 3. Pick … Prepping your lawn mower for spring is not a daunting task. 4.7 out of 5 … It is not necessary to clean a gas can; as long as it is being used, it should be fine. Seal the can tightly, close the venting hole on the top, and wipe any gasoline from the outside of the can. Last Updated: June 11, 2020 Leave a little space in the top of the can to prevent spills and account for it expanding from changes in heat. Look underneath the cap to determine if … Very professional and knowledgeable of what he was doing. Step 3: Unscrew the gas cap on the top of the riding lawn mower. Get shopping advice from experts, friends and the community! Guaranteed Fit Parts Replacement Craftsman Sears Lawn Tractor and Mower Fuel Tank - Replaces Part Number 184900. You can get the system smoke tested at your local mechanic, or try filling slowly. Whether you've stored your lawn mower away for the offseason or just haven't mowed in a while, you should always take proper steps to get it back into top shape. Try a battery test, fuel pump test, and check the spark plugs to help get your car started again. Step 4 Prime the pump by pumping the handle three to four times. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. Enter model number to search for the required part specific to your product. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. You can fill a gas can easily at a local gas station, but you should always be mindful of safety measures while doing so. Excellent service ï, Chevrolet Tahoe - Oil Change - Marietta, Georgia, Very thorough. The fuel cap (a.k.a. Manufactured to meet OE specifications, this gas cap fits most lawn tractors manufactured by MTD. It's always a good idea to have a professional mechanic remove the broken gas cap in order to reduce the potential of damaging other components on the fuel cell. One of the more common electrical problems that both domestic and import vehicles have are issues with the fuses that supply power to individual components. Under this scenario, the filler housing will have damage or excessive debris that causes the gas cap to not thread correctly or smooth onto the gas tank. Once the liquid begins to flow, it will flow without further pumping. Whether it's due to human error or a mechanical defect in the cap or the fuel tank housing, if the thread does not match up, you can sometimes force the cap on, just like you can force a glass jar lid on even when youâre not screwing it on correctly. Use the gas within a few months, since it can expand or wear down the can and increase the risk of an accident. It spits it out. 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