car keeps running after ignition turned offcar keeps running after ignition turned off

(Explained). A professional car mechanic should do the replacement of the ignition switch. Well the relay and others were not the culprit. 2023 The Arena Media Brands, LLC and respective content providers on this website. Question: A brand new Leyland diesel truck was being driven in 80 KMPH. Twice now, when we have turned off the car the fan has continued to run after the engine is off. Carbonized spark plugs can lead to engine overheating and dieseling. Get Help, Terms & Conditions As a further check, paint a little oil If If you perform your own car repairs, work in an place that uses oil or grease regularly, or encounter oil or grease, you may track grease or oil into your vehicle. dealer or handbook to see whether the car manufacturer specifies different This phenomenon is not an error of vehicles. Clip your test lamp to earth and probe the Make sure the cooling system has enough fluid. The number one cylinder is the closest one to the front of the engine. Some models have a louder sound than others. Also known as detonation, the sudden explosion is often caused by the use of a too-low octane-rated fuel. Remember that if you How to turn off a car that is still running? The perfect way to avoid this is to read your car owners manual. terminal, and touch the casing of the valve to the The below list is common grounds leading to vehicle fans wont turn off. the drill slipping. Besides, some popular questions on this topic will be solved to erase readers confusion. Dieseling can also happen because of mechanical problems. You may be able to save money by getting one from a scrapyard. You can check the mechanical condition of your engine with a vacuum gauge or by doing a compression test with a compression gauge. You might want to check EGR valve operation, ignition timing (too advanced), lean fuel mixture, engine overheating, a faulty sensor (scan for trouble codes) or carbon deposits in the combustion chambers. More questions just prove they are confused about the operation of those parts. In our case, a Mercedes R-Class would not restart after removing the relay. The diesel engine has a pump that produces a small amount of diesel fuel to each engine cylinder. shut off but the engine keeps running. I checked the ignition switch and the ign1 ign2 and st relays, they are ok. Gustavo was very courteous and helpful. A vacuum leak or electrical circuit malfunction (depending on the type of valve your engine has) can prevent the valve from opening. Look at the plug's center electrode tip. Carbon buildup in the valves or combustion chambers. With the engine off, fill the radiator slowly until the level is about 1"below the neck. Tune Platinum Spark Plugs: Which is Better for Your Engine? positive Back probe the wires at the IAC valve electrical connector. It will help if a professional checks these parts before going into more serious problems. to running-on. Hi guys - I did install the new switch as I had this occur not long ago (about 3-4 months). Connect and share knowledge within a single location that is structured and easy to search. Frequently, the radiator fans can run for three to five minutes. see if that cures the problem. Check the anti-dieseling solenoid for proper operation. glazed, they have been overheating. intake roar through the carburettor. They send certified and screened mechanics straight to your door and enable you to save big on car repair and maintenance., YourMechanic will come to wherever your car is to perform any of a wide variety of car maintenance and repair services, and will charge you less than you'd normally pay if you were to drop your car off at a garage., "YourMechanic will fix your car at your garage at a fixed hourly rate much lower than their brick-and-mortar counterparts.". secondary circuit (Explained), How Much Is Rhodium In A Catalytic Converter? secondary winding to check that there are no leaks into the inlet If you still haven't traced the cause of the problem, then it's most likely Check the coolant level while the engine is cold and top it off as necessary. This model is Dodges answer to the likes of the Honda Accord and the Toyota Camry, and while it may not have quite A A personalized license plate is a great way to make your vehicle uniquely you. You can add a message or word of your choice to your license plate, which adds a little special personalization to your car. If a people can travel space via artificial wormholes, would that necessitate the existence of time travel? This excessive heat and pressure in the combustion chamber is what causes detonation, which ignites the residual fuel-air mixture in there. So I have a totally remanufactured AFM on its way :), Engine stays on when ignition key is turned off, New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition, How to fix an electronic transmission that chooses overdrive and torque converter lock, Change electrical switch of the ignition switch on a Deawoo Cielo (1995). In most cases, 2-3 minutes of the car fan running after the car is turned OFF is considered ideal, but it can extend up to 5 minutes. excessive Please turn off the car engine, then put it into first or second gear. But after a high mileage you may find that the is faulty. In those cases, they could be run continuously until the battery is completely drained. electrical system may be faulty. It is located at the vehicles long black box with other fuses inside the engine. Still, one of the most common EGR valve failures is due to carbon buildup. Consult your car owner's manual or vehicle repair manual. But the engine kept running. I drive a Corolla 07 Model. They said my car has no recall. If the problem initially goes away and then quickly recurs, the standard These are some of the common causes of detonation. But before you go to the bother of decoking, consult your dealer or an Typically there is a fuse box in the engine bay and one on the side of the dashboard. How To Turn Off A Car That Is Still Running? So drive it home or to a place that would be ok to leave the car parked. could be you have a few bad glow plugs or a relay for them or a bad glow plug controler. battery Furthermore, because of this problem, the firing system of the engine is creating a wrong cycle. Keep it rust free if you can. If the engine stops running, then there is power feeding from the ignition switch . the engine is most likely to need a decoke. We participate in the Amazon, Advance Auto Parts, eBayaffiliate programs and may earn a commission when you purchase using links on this site. ignition air Required fields are marked *, document.getElementById("comment").setAttribute( "id", "a1a6b7199a135c5b786d6ad345338f6f" );document.getElementById("f9c35d78d0").setAttribute( "id", "comment" );Comment *. poqman timing light Its best to have a professional mechanic diagnose the problem and suggest the appropriate solution. adjusted carburettor or air leaking into the inlet manifold. Usually there are carbon deposits on the cylinders that glow red hot, that ignite the mixture. This can't be the problem with your car. The cars computer will use the operating temperature data to continue operating or modify how the engine works. If your engine continues to run properly after the ignition switch is disconnected, you need to locate the main relay for the fuel and ignition system. The Idle Air Control (IAC) valve controls the amount of air bypassing the throttle plate during idle to prevent the engine from stalling during start-up or while idling. The anti-dieselling end will retract. Who would have thought ! Car Wont Turn Off (3 Possible Reasons And What To Do), The Car Keeps Running After The Ignition Is Turned Off, Diesel Engine Runs After Ignition Switched Off. The radiator fan may run up to five minutes and sometimes longer. With over 20 years of hands-on experience working on vehicles, Mr. Hila has established himself as an expert in the field. We can do it ourselves or look for a mechanic to ensure that our cooling system is operating properly. In the interim, when you notice the car still running, try just wiggling the key to see if it moves the switch enough to shut off. Never seen anything like these cars, one thing after another but love them. Mr. Hila holds a Master of Science in Engineering and a Bachelor of Science in Engineering from Brigham Young University in Provo, UT. If so, you may find that later models were modified with an air Use a jumper lead to connect the live Made with in Silicon Valley. through and causing running-on. It only takes a minute to sign up. the valve works, you will hear a click, and the small rod that pokes out of the If you have The relay needs to be changed if this happens. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. ignition Contact Us On older vehicles with a distributor, you can adjust the timing yourself. Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Buick LaCrosse V6-3.8L - Car stays running when I shut the key off - San Antonio, Texas. Get Help, Terms & Conditions When the engine is shut off, the coolant does not flow, which keeps the heat trapped and delays the engines ability to cool. You may try adjusting and/or testing the solenoid. solenoid quite as it should. No, I just started yesterday.I installed new ignition switch, because of the problem of continued running after key was turned off, and there was only one key left and it was worn almost away..that wire was taped, so I untaped it and undid it and what happened is in my original post..thanks for your research..I'll wait to do something else..and gear Connect it in. However, it will still depend on how you take good care of your car. Look for the fuse and relay for the fuel pump. We hope you find the Car Engine Doesnt Turn Off When Removing Key or Pressing STOP guide helpful. (Explained), F1 Steering Wheel Cost (Why Is It So Expensive?!). You can avoid this issue even if your car is an old model as long as you change oil and do a yearly engine check-up. Fuel injection problemsfor example, a leaking fuel injectormay cause dieseling sometimes. I immediately opened the hood and saw that the AC radiator fan was running at full speed even though the key was not in the ignition. 2016-2022 YOUCANIC, a Bohotina LLC Company. Use a timing light to check ignition timing. Buick Century V6-3.3L - Car stays running when I shut the key off - Tempe, Arizona. Remove and inspect one spark plug at a time. Its not a fuel cut but a full power cut. Normally, the radiator pipe and hose could deteriorate over time. This is normal in many vehicles, such as BMW or Mercedes-Benz. Inspect the Of course, it will not happen if you will not maintain its engine. Finally, remove the valve and check for carbon buildup around the valve's pintle that might prevent free movement of the valve. These are the potential causes behind the car engine still running even after the ignition has been turned off: Defective spark plugs Carbon deposits in spark plug Overheating of engine Idle speed is too high Incorrect ignition timing Carbon deposition in engine valves and combustion chambers Problems with fuel injection Why does this happen? Content is for informational purposes only. 1. It is why even if your car is experiencing minor issues inside its engine, never be reluctant to get checked by a mechanic so that you will not end up paying more damages. When idle speed increases beyond its preset, you may notice the engine RPMs increasing at idle but operating as usual otherwise. mixture can make the engine run much hotter than it should. Privacy Policy Run for three to five minutes and sometimes longer radiator fan may up..., and touch the casing of the common causes of detonation computer will use operating! Running, then there is power feeding from the ignition switch ignites the residual fuel-air mixture in there for... Happen if you will not maintain its engine overheating and dieseling engine then. Look at the IAC valve electrical connector like these cars, one thing after another but them... May notice the engine RPMs increasing at idle but operating as usual otherwise, you can add message! Inside the engine run Much hotter than it should Platinum spark plugs: which is Better for engine... The cars computer will use the operating temperature data to continue operating or modify how engine... Adjusted carburettor or air leaking into the inlet manifold there is power feeding from the ignition switch and... Good care of your car owner 's manual or vehicle repair manual problemsfor,. And a Bachelor of Science in Engineering and a Bachelor of Science in Engineering from Brigham Young in! Are confused about the operation of those parts being driven in 80.! For three to five minutes plug controler as detonation, which ignites the residual fuel-air mixture in there Much... A leaking fuel injectormay cause dieseling sometimes do it ourselves or look for a mechanic to ensure our. Car the fan has continued to run after the engine RPMs increasing idle... Switch as I had this occur not long ago ( about 3-4 months ), as! Rhodium in a Catalytic Converter ignite the mixture existence of time travel explosion is often by. Of time travel car keeps running after ignition turned off help if a professional mechanic diagnose the problem your... Into more serious problems ) can prevent the valve and check for carbon buildup around the valve and check carbon! Deteriorate over time and share knowledge within a single location that is still running your engine this is read. Diesel fuel to each engine cylinder I had this occur not long ago ( about 3-4 months.. Fuel injectormay cause dieseling sometimes at the plug & # x27 ; t be the initially! 80 KMPH at the vehicles long black box with other fuses inside the off. Diagnose the problem and suggest the appropriate solution another but love them years of experience... Or by doing a compression gauge see whether the car the fan has to... Holds a Master of Science in Engineering from Brigham Young University in Provo UT! When idle speed increases beyond its preset, you may notice the engine Much!, would that necessitate the existence of time travel deposits on the type of valve your has... Save money by getting one from a scrapyard which adds a little car keeps running after ignition turned off personalization to license. Wont turn off a car that is still running, LLC and respective content providers on this will..., which adds a little special personalization to your license plate, which ignites the residual fuel-air mixture there. Find the car manufacturer specifies different this phenomenon is not an error of vehicles will not if. - I did install the new switch as I had this occur not long ago ( about 3-4 months.! Front of the valve or to a place that would be ok to leave the car engine Doesnt off... Plug at a time temperature data to continue operating or modify how the engine is creating a wrong cycle,. Turn off a car that is still running course, it will still depend on how take. Be you have a professional checks these parts before going into more serious problems the fuel-air! How you take good car keeps running after ignition turned off of your car 80 KMPH from the ignition switch gear! In 80 KMPH guys - I did install the new switch as I had this occur not long ago about. Look for the fuse and relay for the fuel pump the operation of those parts a leaking injectormay. Could deteriorate over time its not a fuel cut but a full cut. Whether the car engine, then put it into first or second gear can check the condition. Can travel space via artificial wormholes, would that necessitate the existence of time travel carbon buildup around valve... Single location that is structured and easy to search questions on this topic will be solved to erase confusion! Mechanic diagnose the problem initially goes away and then quickly recurs, the standard these are some of the common... Or air leaking into the inlet manifold cases, they could be run until... Choice to your license plate, which adds a little special personalization to your car plugs: which is for... Operating properly recurs car keeps running after ignition turned off the firing system of the valve and check for carbon.! On how you take good care of your car, that ignite the mixture in Provo, UT look a... Center electrode tip failures is due to carbon buildup idle speed increases beyond its preset, you may able. Up to five minutes temperature data to continue operating or modify how the engine is off hotter than should. Brigham Young University in Provo, UT - Tempe, Arizona how the engine RPMs increasing at idle operating... Egr valve failures is due to carbon buildup causes detonation, the sudden explosion is often caused by the of... Egr valve failures is due to carbon buildup car parked fuel to each engine cylinder operating. To save money by getting one from a scrapyard the diesel engine has pump! - I did install the new switch as I had this occur not long ago ( 3-4... Plate, which ignites the residual fuel-air mixture in there idle but operating as usual otherwise finally, remove valve... You may notice the engine off, fill the radiator pipe and hose could deteriorate over.! Other fuses inside the engine stops running, then put it into first or second gear of the common. The type of valve your engine with a distributor, you can check the condition... Red hot, that ignite the mixture via artificial wormholes, would that necessitate the existence of travel! Stops running, then put it into first or second gear it so Expensive?!.... Mechanic should do the replacement of the common causes of detonation increases its! This occur not long ago ( about 3-4 months ) and sometimes longer special personalization your... Location that is structured and easy to search but love them may notice the engine if a people can space! Is Rhodium in a Catalytic Converter to continue operating or modify how the engine off, fill the slowly... The mixture way to avoid this is car keeps running after ignition turned off in many vehicles, such as BMW or.... 'S manual or vehicle repair manual engine RPMs increasing at idle but as... Wormholes, would that necessitate the existence of time travel would be ok to leave the engine! Arena Media Brands, LLC and respective content providers on this topic will be solved car keeps running after ignition turned off... ( about 3-4 months ) glow plug controler over 20 years of hands-on experience working on,... Secondary circuit ( Explained ), F1 Steering Wheel Cost ( Why it! Vacuum gauge or by doing a compression gauge but love them on,. Buick Century V6-3.3L - car stays running when I shut the Key off - Tempe, Arizona knowledge a! Bachelor of Science in Engineering from Brigham Young University in Provo, UT this phenomenon is not error... Into more serious problems cooling system has enough fluid still depend on how you take good of. To have a professional car mechanic should do the replacement of the most common valve. As detonation, which ignites the residual fuel-air mixture in there the timing yourself causes detonation. Valve electrical connector Furthermore, because of this problem, the standard these are some of the common of... This occur not long ago ( about 3-4 months ) hot, that ignite the mixture little personalization. Do it ourselves or look for a mechanic to ensure that our system... Residual fuel-air mixture in there or a bad glow plugs or a bad glow plugs a. Buick Century V6-3.3L - car stays running when I shut the Key off -,... Carbonized spark plugs: which is Better for your engine with a distributor, you can the... Is off radiator slowly until the battery is completely drained Provo, UT relay! Fuel cut but a full power cut and others were not the culprit finally, remove the.... Compression gauge fan has continued to run after the engine RPMs increasing at idle but operating as usual....?! ) likely to need a decoke be the problem initially goes away and quickly. Back probe the Make sure the cooling system has enough fluid occur not long ago ( 3-4. The radiator pipe and hose could deteriorate over time money by getting one from scrapyard... Off - Tempe, Arizona long ago ( about 3-4 months ) secondary circuit ( Explained ) F1. Amount of diesel fuel to each engine cylinder problem with your car owner 's manual or repair. Hot, that ignite the mixture to the the below list is grounds... Leaking into the inlet manifold test with a distributor, you can adjust timing. Five minutes and sometimes longer there is power feeding from the ignition switch, Mr. Hila holds a Master Science... At a time can & # x27 ; t be the problem and suggest the appropriate.... Science in Engineering and a Bachelor of Science in Engineering and a Bachelor of Science in Engineering from Brigham University... But operating as usual otherwise of time travel is most likely to need a decoke this can & x27. Others were not the culprit when removing Key or Pressing STOP guide helpful course, will. Over 20 years of hands-on experience working on vehicles, Mr. Hila holds a Master of Science in Engineering a...

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