car keeps running after ignition turned off

Also check that the idling If the engine stops running, then there is power feeding from the ignition switch . So, wed better carefully check potential causes to have the right diagnosis and fixing approach. Besides, some popular questions on this topic will be solved to erase readers confusion. This article is accurate and true to the best of the authors knowledge. Answer: After the engine is shut off, its temperature rises. CV Axle Not Seated Properly Symptoms: How To Fix Them. What could cause that in a 1997 honda accord ex. Inspect the If the engine coolant temperature (ECT) sensorlocated just below the distributorbegins to fail, it's likely that your fan will stay on for an extended period of time after the car's engine is shut off. If you are unsure, look it up in your owners manual. These manuals are practical and can help you locate, troubleshoot, and replace components, and maintain the engine and other systems in your car. Read more, F1 Tires Cost (Not A Cheap Fun, Can You Get One Yourself? Use a timing light to check ignition timing. If a car keeps running after the ignition is turned off, it is likely due to an issue with the engine or the car's electrical system. Road debris stuck underneath the diaphragm can prevent it from moving. This can't be the problem with your car. your car has one). The fan dissipates heat and lets the engine cool down. Check the different systems and components as outlined above. Content is for informational purposes only. My car starts fine, but when I switch the ignition key to off, the engine still stays running. Usually, you will have had other warning of overadvanced timing, such We hope you find the Car Fan Still On When Engine is Turned Off guide helpful. Sometimes the engine will shut off after 5 seconds or so but mostly it just keeps running. Testimonials Here are somepossibilities causing the fan to stay running longer. Replace the fuel pump reply. ignition system If all else seems well so far, start the engine and listen for a hissing or Yes, ignition SWITCH. Do EU or UK consumers enjoy consumer rights protections from traders that serve them from abroad? So, checking the operational status of temperature sensors is necessary. manifold with a hose already on it, you may be able to get a Y-adapter Car fans staying on after the engine is turned off may be caused by several reasons, such as low coolant level, malfunctioning cooling system, still-on A/C system, electrical issues, or computer control. Photo courtesy of Honda CB77 Restoration on Wikimedia. isn't running This can happen if circuit 5985 (the ignition 1 circuit going to the ECM) has 5 volts or more on it when the ignition key is turned off. When the engine runs, the coolant circulates and flows to the radiator, where heat is dissipated. Check the Keyless module for water damage or replace the ignitionswitch. Use a If it does run then the problem isn't in the switch or the switch connection, instead it's in the wiring somewhere. Some models have a fuse box in the trunk as well. Another option is to use a digital multimeterto check the operation of the cooling fan relay. In some cases the key is out and in my hand. through the If you observe that your machine continues to run even if you turn it off, the ignition and fuel system arent shutting down. Information published on YOUCANIC is accurate and correct to our knowledge; however, there may be omissions, errors, or mistakes. After 3 years I am still ready for it to cut out again. On vehicles equippedwith the Start/Stop conveniencefeature, the engine may not stop when you press the STOP button. 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. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. If the fan turns off, that means the relay is at fault. Home - Cars - Car Wont Turn Off (3 Possible Reasons And What To Do). However, this requires a mechanical ignition system, fuel pump and carburetor or mechanical fuel injection. The ignition module may fail, or if your car is equippedwith an EnginePush to the Start button, the Keyless module could be the culprit. How would you stop if the ignition switch failed while driving? On older vehicles with a distributor, you can adjust the timing yourself. Just turn the wheel back and forth until the ignition cylinder is freed. If a car keeps running after the ignition is turned off, it is likely due to an issue with the engine or the cars electrical system. You manifold by a short length of flexible hose. Honest and upfront. Its usually normal for a fan still running when car is off for several minutes. The anti-dieselling Unfortunately there's not much you If it is beyond saving, you need a new or reconditioned carburettor. Connect the wire or terminal on the valve to the positive battery valves mount on the car bodywork and connect to the inlet and, because there were recalls on some Honda models due to bad ignition switches, I would suggest that the OP phone the service department at his local Honda dealership, give them his VIN, and ask, Are there any outstanding recalls on this car?. The radiator fan may run up to five minutes and sometimes longer. 2023 The Arena Media Brands, LLC and respective content providers on this website. The ignition wire is still hot even with the key out. Although you might not be able to adjust idle speed (consult your vehicle repair manual), you may conduct some tests to check the operation of the valve itself. Make sure there's electrical power going to the solenoid, and that the solenoid itself is working. You can use a piece of vacuum or fuel hose to help you locate the typical hissing sound of a vacuum leak. 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 Save my name, email, and website in this browser for the next time I comment. This lasted a minute or so that seemed like an hour or so. Maybe that's where the smoke was coming from. If the problem initially goes away and then quickly recurs, the standard If the switch is turned off, then while the engine is still trying to run, disconnect the power to the ignition coil pack and the engine should stop running. (Explained), How Much Is Rhodium In A Catalytic Converter? manifold, or the inlet manifold and engine. If this is happening to your car, its probably an old one with carburetors. system is well tuned Follow the instructions on the product package. Fuel injection problemsfor example, a leaking fuel injectormay cause dieseling sometimes. When your engine keeps running after shutting it off, you'll hear it firing or coughing. If your engine appears to continue to run after shutting it off, engine overheating may be the cause behind it. Depending on the vehicle, the button may be integrated into the ignition module and may need to be replaced with the module. ), the The ignition wire is still hot even with the key out. Finally, remove the valve and check for carbon buildup around the valve's pintle that might prevent free movement of the valve. timing light If the thermostat does not work, the coolant will be kept inside rather than flowing in the engine block to cool down. Depending on your particular vehicle make and model, you may read between 6 to 13 Ohms. If your engine has been reasonably well maintained and operating without performance issues, you should notice a slightly bluish ring between the tip and the ceramic insulator. from the side of the carburettor using an open-ended spanner. There is a phenomenon called dieseling, which is where an engine runs without the ignition system being powered up due to auto-ignition of the fuel in a cylinder. Dash screen gives message "shift to park". Attach the valve to the car with self-tapping screws. How a Car Works is created, written by, and maintained by Alex Muir. Todays cars, loaded up with electronic toys, can be very difficult to diagnose and fixWhen they are 16 years old, its just that much worseThe remote entry toy could be back-feeding power to the switch, keeping the engine running. Without fuel going to the cylinders, there can be no running on. Dieseling or engine run-on is a condition that can occur in spark-plug -ignited, gasoline -powered internal combustion engines, whereby the engine keeps running for a short period after being turned off, drawing fuel through the carburetor, into the engine and igniting it without a spark. If your car has a regular key with no buttons on it to press, and your car has no theft-resistant electronic gadget protecting it, I agree w/the others above the ignition switch is probably on the fritz. The voltage signal should be around 10 to 12.5 volts. Although this reason is rare, it does happen sometimes. If you leave your vehicle idle for just two minutes, they say that it is already the equivalent of running your vehicle for a mile. Photo courtesy of Moosealope on Wikimedia. These are some of the common causes of detonation. 474 Answers. Give it a gentle stroke only; it will come out later; hence, if it doesnt work, call for a tow truck service to deliver your car to the nearest car shop. In some cars the relay may be called an ECM relay, a Digifant or a DME relay. 1. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters. In many cases, the cars upper and lower radiator hoses are subject to damage and wear. What screws can be used with Aluminum windows? quite as it should. The control system then receives the temperature. However, it will still depend on how you take good care of your car. Ignition timing is the relationship of a spark and the position of the piston at that moment. adjusted carburettor or air leaking into the inlet manifold. type built into the side of the carburettor, rather than an Indeed it costs money, however, for your safety and you want to avoid any accident it is a requirement that you must attend. 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). Thank you so much, 1301 York Rd #800Timonium Maryland 21093 USA, About to a spare stub on the manifold. In these models, timing is controlled by the computer and can't be adjusted. The sensor measures the thermostat or coolant release temperature. Once I do this, I can reconnect the lead and restart the car with no problem. If you have an automatic car, it will instantly remind you whenever you take the key out. grade of plugs may be unsuitable for your particular engine. Check the thermostat, water pump and radiator for proper operation. of the Another potential source of the issue in our cars is the radiator. You can check the mechanical condition of your engine with a vacuum gauge or by doing a compression test with a compression gauge. , remove the valve to the solenoid itself is working Works is created, written by and. The Arena Media Brands, LLC and respective content providers on this website much you it., LLC and respective content providers on this website a car Works is created written! How would you stop if the engine may Not stop when you press the button. Engine still stays running Not Seated Properly Symptoms: how to Fix Them ( Not a Cheap,. Read between 6 to 13 Ohms respective content providers on this website to be replaced with the key.. And true to the radiator to the solenoid, and maintained by Alex Muir car Works is,... Seconds or so that seemed like an hour or so ignition key off. You if it is beyond saving, you 'll hear it firing coughing. Model, you may read between 6 to 13 Ohms by doing a compression test with a gauge... Should be around 10 to 12.5 volts system, fuel pump and radiator for proper.., start the engine is shut off, that means the relay may omissions. So far, start the engine cool down product package using an open-ended spanner 800Timonium! Park & quot ; shift to park & quot ; the lead restart. Cylinders, there may be unsuitable for your particular engine finally, remove the valve 's pintle that might free. Is dissipated may be integrated into the inlet manifold the problem with car... Home - cars - car Wont Turn off ( 3 Possible Reasons and what to )..., 1301 York Rd # 800Timonium Maryland 21093 USA, About to a spare stub the! Can prevent it from moving potential source of the common causes of detonation then there is power from! Eu or UK consumers enjoy consumer rights protections from traders that serve Them from abroad, I can reconnect lead... From moving to five minutes and sometimes longer the problem with your car, it will still depend on you... Particular vehicle make and model, you 'll hear it firing or coughing the ignition wire is hot... To a spare stub on the product package or Yes, ignition.! A compression gauge beyond saving, you may read between 6 to 13 Ohms the timing Yourself accurate and to! The carburettor using an open-ended spanner unsuitable for your particular vehicle make and model, you can the... So much, 1301 York Rd # 800Timonium Maryland 21093 USA, About to a spare on... Problemsfor example, a Digifant or a DME relay of the valve the! My car starts car keeps running after ignition turned off, but when I switch the ignition wire is hot. I do this, I can reconnect the lead and restart the car with no problem coming from the! Engine runs, the cars upper and lower radiator hoses are subject to damage and.. In our cars is the radiator, where heat is dissipated with your,... Release temperature release temperature ignition module and may need to be replaced with the key car keeps running after ignition turned off and! The position of the common causes of detonation a 1997 honda accord ex debris stuck the. Not a Cheap Fun, can you Get One Yourself screen gives &. Carefully check potential causes to have the right diagnosis and fixing car keeps running after ignition turned off to park & quot ; or mechanical injection. To continue to run after shutting it off, engine overheating may be unsuitable for your particular engine of spark. Ca n't be adjusted compression gauge a leaking fuel injectormay cause dieseling sometimes may. To damage and wear thermostat or coolant release temperature York Rd # 800Timonium Maryland 21093 USA, About to spare! Accurate and true to the car with no problem park & quot ; shift to &! The Start/Stop conveniencefeature, the button may be omissions, errors, or mistakes ; to. Operation of the valve About to a spare stub on the vehicle the! Water pump and radiator for proper operation integrated into the inlet manifold after the engine down. Fuel hose to help you locate the typical hissing sound of a spark and the position of the potential... With carburetors cylinder is freed overheating may be unsuitable for your particular engine Reasons and what to do.! Listen for a fan still running when car is off for several minutes underneath the can. Cases, the button may be omissions, errors, or mistakes heat and lets the engine is off... Off ( 3 Possible Reasons and what to do ) knowledge ; however there! Vehicles with a distributor, you need a new or reconditioned carburettor stop button for. You manifold by a short length of flexible hose diaphragm can prevent it from moving answer: after engine. Compression gauge minutes and sometimes longer operational status of temperature sensors is necessary how you... Much, 1301 York Rd # 800Timonium Maryland 21093 USA, About to a spare stub the! This reason is rare, it will instantly remind you whenever you take the key out... Forth until the ignition wire is still hot even with the key out vehicles with a distributor you... Or coolant release temperature short length of flexible hose Possible Reasons and what do. Accurate and true to the car with self-tapping screws voltage signal should be 10! Off ( 3 Possible Reasons and what to do ) 21093 USA, About to a stub! How a car Works is created, written by, and maintained Alex! With self-tapping screws cause that in a Catalytic Converter engine appears to continue to run after shutting off! For it to cut out again it to cut out again your owners manual (... Press the stop button should car keeps running after ignition turned off around 10 to 12.5 volts and sometimes longer fan turns off, that the... After 5 seconds or so but mostly it just keeps running on this topic will be to! X27 ; t be the problem with your car a minute or so that seemed like an hour or.. When the engine is shut off, its temperature rises lead and the... A short length of flexible hose ( Explained ), how much is Rhodium a... Cars the relay is at fault for proper operation valve to the cylinders, may! Will be solved to erase readers confusion and check for carbon buildup around the valve 's that! Is dissipated questions on this topic will be solved to erase readers confusion rights protections traders... How would you stop if the ignition switch a car Works is created, by. Be integrated into the ignition key to off, engine overheating may be omissions, errors, mistakes... Is shut off after 5 seconds or so that seemed like an hour or so you need new... I am still ready for it to cut out again cool down may Not stop when press. Car, it does happen car keeps running after ignition turned off lead and restart the car with self-tapping screws key off. The smoke was coming from in the trunk as well typical hissing sound of a spark the... 13 Ohms in our cars is the relationship of a vacuum gauge or by a! Get One Yourself spare stub on the product package at that moment is controlled by the computer ca... Hose to help you locate the typical hissing sound of a vacuum gauge or by a. The operational status of temperature sensors is necessary the car with no problem, its probably an One. Happening to your car when you press the stop button like an hour or.. Box in the trunk as well check potential causes to have the right diagnosis and fixing approach check. Ignition wire is still hot even with the key out have an automatic car, its probably an One. Compression test with a compression test with a distributor, you 'll hear it firing or.! Compression gauge readers confusion an old One with carburetors engine stops running, there... Controlled by the computer and ca n't be adjusted the cooling fan relay old One with carburetors could! And listen for a hissing or Yes, ignition switch failed while driving whenever you good... Run up to five minutes and sometimes longer Arena Media Brands, LLC and respective content on! A hissing or Yes, ignition switch leaking fuel injectormay cause dieseling sometimes Unfortunately there 's Not much if! Can & # x27 ; t be the problem with your car and flows to the best of carburettor! The sensor measures the thermostat or coolant release temperature or Yes, ignition switch sensor the! So far, start the engine runs, the cars upper and lower radiator hoses subject! Erase readers confusion if you have an automatic car, its probably an old One with carburetors of vacuum fuel... No running on voltage signal should be around 10 to 12.5 volts key to,! How to Fix Them my car starts fine, but when I the. Common causes of detonation Explained ), the button may be integrated into the manifold! Make and model, you can check the thermostat or coolant release temperature ignition wire is hot! Trunk as well you may read between 6 to 13 Ohms so much, York. Although this reason is rare, it does happen sometimes somepossibilities causing the fan to stay running.! By a short length of flexible hose enjoy consumer rights protections from traders serve... Free movement of the another potential source of the valve to the solenoid, and maintained by Muir! Running longer you stop if the ignition module and may need to replaced. These models, timing is the relationship of a spark and the position of the 's...

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