Why Check Engine Light Due To Gas Cap Happens. Will keep you posted, I know you are all holding your breath. Check to make sure the gas cap is tight. The check engine light will come on and set a code if the fuel system isn’t sealed airtight. 1999 VW Bettle 2 lt check engine light is on, the check engine light comes on when you put gas in the tank. Save Share. the light will go out for a day or two 3 Answers. Visit an automotive parts store or dealership service department to order a new gas cap. You are here: Check Engine Light Home > Volkswagen Check Engine Light Questions. Nope, but its the most common reason why the check engine light comes on. Own a 2013 vw Passat sel tdi. Removing and replacing it ensures the thread seals properly, in case it wasn't before. Average failure mileage is 5,000 miles. gas cap cleaned and still on. About four days ago the gas cap light would come on. I took my car back to the dealer to have a look and it was the radiator and not the damn gas cap. I drop it off at Sunnyvale VW before heading to work and the service rep diagnoses the problem right away as the gas cap missing causing the check engine light to come on. Grabkowski attended college in Oregon. It takes three or more engine starts before the Check Engine light comes on. Just remember if it comes back on, to tell the service guys to check the entire assembly for the EVAP hosing and such. ... Im having the same problem i replaced the gas cap and the light is still on and ya i over filled the gas tank on accident did that mess something up? Answer to the check engine light. Volkswagen vehicles built after 1996 are equipped with a system of sensors known as On Board Diagnostics (OBD II). Simply put, if your fuel cap light is on, it means that the computer has detected a leak in the system, typically from a loose gas cap. Diagnostic at dealer "exhaust temp sensor" bad and they would have to order part. After they replaced my Purge valve, my CEL came on again, and they replaced the hose and nozzle that goes to the purge valve. Sometimes, if a Volkswagen Passat Fuel Tank Cap is harmed, the check engine light may illuminate. Get Help from Delta Airlines Official Site. My GTI has around 6500 miles on it. The Volkswagen Passat Fuel Tank Cap's main purpose is to seal the gas reservoir from any moisture or air from the exterior and vice versa so that gas vapors do not get the exterior. A loose gas cap can allow oxygen to get into the gas tank and can trip up the oxygen sensor, which in turn illuminates the check engine light. The party is broken, the fun is spoiled already. Four days later the check engine light came on again. The truth is the government mandates this code to protect the atmosphere from fuel vapors. Let's take a look at some of the most common problems that cause VW check engine light to come on. Modern cars and trucks have an automotive diagnostic system known as OBD-II (on-board diagnostics). My gas cap warning light came on this morning, I thought I would fill the car in case the cap is loose. Step to the gas cap door. A gas cap can cause a check engine light? For a better experience, please enable JavaScript in your browser before proceeding. He replaced the gas cap and the light shut off. Check engine light came on. The light does not come on if you just take the gas cap off, you have to … purge solenoid and hoses for cracks or kinks,the solenoid is on the inner fender and has 2 hoses, one to the intake and one to the canister, the most common cause of this code is a defective purge solenoid. This warning light can indicate a wide range of problems, some minor and others much more serious; however, if the light comes on right after filling up, it probably indicates that the gas cap is loose. To inspect the gas cap for damage, follow the steps noted below but remember, each gas cap is unique to the vehicle; so refer to your vehicle service manual for exact steps if it's available. Fuel cap is not securely fastened: The Check Fuel Cap light can come on even if the gas cap is on. Copyright 2020 Leaf Group Ltd. / Leaf Group Media. If the gas cap looks okay and the light does not turn off, have a certified technician investigate the issue and determine the cause. I simply took off the gas cap and screwed it back on correctly and the check engine light immediately went off. After the car was refulled to the max, the car just started, spluttered for a few seconds as if it was going to stall, then after a quick rev it ran fine to the office. Even if the cap seems secure, it may not be sealing properly. If it does, the gas cap may be faulty. I have a 2002 VW Passat with the check engine light that stays on. 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. So, how often does the gas cap actually go bad on these cars? Turn off your vehicle's engine. I took it to the dealer, they hooked up to the computer and ran a full check. Some fuel caps can be a little tricky to securely fasten, so make sure that your gas cap turns until it … As it was the first time I'd ever seen it, I didn't know what it was, and the next day, checked in the owners manual. Gas caps are inexpensive, so if you have any doubt, replace the cap. Just for recording purposes - my "Check Gas Cap Light" came on this morning - pulled over immediately and checked the gas cap (like I should) and it didn't clear the light. The dash light was still there. Your gas cap is responsible for keeping your fuel tank sealed, preventing gas fumes from escaping into the air, or worse - into your vehicle. If your gas cap is not properly attached, you may see a "Check Engine" light or a "Loose Cap" warning light on the dash. If you find that the light keeps coming on, and goes off again once you tighten the gas cap, then your gas cap is too loose. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. If you find that the light keeps coming on, and goes off again once you tighten the gas cap, then your gas cap is too loose. Please help. If not, you will have to go to a service station or buy your own OBD II (On Board Diagnostic version II) code reader. Like I said, I had the same EXACT problem that you're having. Below we have highlighted the most common causes of a check engine light. SOURCE: Check engine light/gas cap will not stay tight. The light would stay on for about 10 minutes and I would hear a thumping sound coming from the back. Gas cap / Image source. When the light comes on, check the gas cap at the next stop, and then continue on your way. Posted on Apr 24, 2009 I Already replaced the cap with a dealer replacement .----- Post added at 01:06 PM ----- Previous post was at 12:56 PM ----- But if the reason lies in check engine light gas cap, you are salvaged. Remove it. It should never be ignored. Map 7500 West Azure Drive, Las Vegas, NV Today 8-9pm (702) 982-4800 However, if your gas cap is damaged and needs to be replaced, you’re looking at spending a few bucks. Several diagnostic have been run and evac hoses as well as gas tank cap has been replaced. My GTI has around 6500 miles on it. I made an appointment at the dealership. And yes, you might have to go to a mechanic. This incident can happen for many reasons. I have an 06 jetta vw. Of course, when I found out what it was, I took the gas cap off, checked it out, and put it back on. As it was the first time I'd ever seen it, I didn't know what it was, and the next day, checked in the owners manual. The orange check engine light is a car's way of telling you something is wrong. If your gas cap is loose or missing altogether, it can trigger a Check Engine Light when the fuel system tests itself to insure it is "sealed". hahahahah....Gas cap light, then CEL. Most of them have to do with the emissions control system and related sensors. The gas cap is a part of the vehicle’s evaporative emissions system and can cause problems with the system if it has an issue. A factory Volkswagen Passat Fuel Tank Cap is cheap to purchase and is no trouble to install. Gas Cap. This post does not reflect the views or opinions of Volkswagen AG or any individually owned dealer or ... we went to a place that always set off the other cars cause it was cheaper and i see why it was cheaper. Unlike many dashboard warning lights, the VW check engine light is a bit multipurpose. Any idea if you've encountered this? So, cleaning the cap and the filler neck must have done the job and it took till last night to hit the 3/4 to halfway point. Why would that set off the warning light? My gas cap was stolen over the weekend. If you read the codes, still get a … A messed up gas cap situation accounts for over seven percent of the situations that a check engine light goes on, which is actually quite a bit higher than a lot of other reasons. Sounds like one of those superstitions or myths, doesn't it? Map 7500 West Azure Drive, Las Vegas, NV Today 8-9pm (702) 982-4800 But if the reason lies in check engine light gas cap, you are salvaged. Unlike many dashboard warning lights, the VW check engine light is a bit multipurpose. Fuel cap is not securely fastened: The Check Fuel Cap light can come on even if the gas cap is on. These sensors monitor many vital engine functions and help to lower harmful emissions. Other than that, you're not going to know what the problem is unless you get the code read. Almost every car owner that has ever filled up a gas tank has encountered a “Check Engine” light that comes on when the gas cap has not been closed properly. A loose gas cap can trigger a Volkswagen engine light to turn on. Replaced that and reset the code, and the light came on a few days later again. “My gas cap is nowhere near my engine, though?” While the gas cap is indeed located on the other end of most vehicles, in some circumstances having a loose gas cap can trigger the check engine light. I own a 2015 Ram 1500 LoneStar 5.7, recently had the engine light & check fuel cap indicator light up on display. 2009 VW Passat 2.0 105000 miles. Drove to dealer less than 4 miles. Pay attention to the dashboard after the check engine light experience. Regardless of whether or not I unscrew and re-screw the gas cap, the light will likely go away the next time I drive the car and will come back several weeks later. I have a 2018 VW atlas and the check engine light keeps coming on. If that doesn't work for you, you may need to get a new cap. you most likely did not tighten it down correctly. Not necessarily!! The gas cap light went out, but just before I got to work the check engine light has come on. There’s also a possibility you have a bad fuel tank pressure sensor. myfastgti.com is not in any way affiliated with Volkswagen AG. The check engine light was still on after eight trips, so I went to an AutoZone store and its device showed that the light probably was the result of a loose gas cap. So, my new R is just 60 miles in and suddenly I'm getting a fuel cap warning light. I have a 14, 6.4 2500, and my check gad cap light jeeps coming on. yes the gas cap could cause this,also check evap. Crank the engine and drive your vehicle for a day. Then I also had a "check engine" light come on in my 1994 Chevy. 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. If the fuel cap is not completely fastened, the vehicle will not recognize that the cap is on. If you don't know the answer or perhaps do not like my question, why dont you just skip over it instead of giving stupid answers. If your car isn’t feeling jerky or strange when the check engine light comes on, the first thing you should check is the gas cap. Fortunately Porsche Plano is here to help you figure out what might be wrong, and what your next steps should be. A wide array of issues can cause a check engine light to come on, some more serious than others. I was driving and the weird "Check Gas Cap" symbol came on. the light will go out for a day or two 3 Answers. If the light stays on after a few days or so, then it’s time to get your Volkswagen … Volkswagen vehicles built after 1996 are equipped with a system of sensors known as On Board Diagnostics (OBD II). yes the gas cap could cause this,also check evap. We know what you’re thinking. The 2006 Volkswagen Beetle has 1 problems reported for engine light and gas cap light on. The OBD-II system will automatically reset the "Loose Cap" or "Check Engine" light. I literally had it serviced last week for its 20k birthday and everything was great but this damn light won’t turn off. As it was the first time I'd ever seen it, I didn't know what it was, and the next day, checked in the owners manual. The check engine light should go off after you drive for several minutes if the light was caused by a loose gas cap. I would pull the car over and check the cap, but it was always screwed in tightly. This morning I received a warning chime and the message "Check Gas Cap" in the driver information display. Replace the gas cap. Use an OBD-II code scanner if the warning light does not disappear. – Louis in Duncan, B.C. Pay attention to the dashboard after the check engine light experience. Hope this helps! I have a 2002 VW Passat with the check engine light that stays on. The gas cap is secure, the tank was nearly full. I would double check the gas cap. When one of these sensors fails it sends a signal to the engine computer to illuminate the "Check Engine" light in the dash. About four days ago the gas cap light would come on. I asked this question a few weeks ago and I received some really stupid and obnoxious answers. If the light doesn’t turn off, inspect the gas cap for any damage and replace it if necessary. Thanks for the help on this. Mine turned out have both a stuck purge valve, and a blocked nozzle...though i'm not sure exactly what each is responsible for. But it's true! I've got a 2006 with ~80k miles, and I've had the check gas cap light come on several times in the past few months. The message shortly disappeared but a warning icon remained. The gas cap light went out, but just before I got to work the check engine light has come on. Here are the 10 most common issues that trigger it. Pay attention to the dashboard warning lights to ensure the light does not come back on. Check engine lights on forever and there is a check gas cap message on the information center. Check Engine Light comes on. Continue driving normally with the light illuminated and it should go off within a day or two. One day before my appointment my check engine light has turned off after I parked my car in the sun for an hour. If it "never" goes away, maybe replace the cap with an OEM one, not from the parts store. Push button to unlock the gas cap door, if your vehicle is equipped with a locking gas cap door. Checked it again when I arrived at the parking garage. 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