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Its advisable to refrain from operating the vehicle with a damaged fan. Question: Why would the detonation occur just after turning off the engine? The best answers are voted up and rise to the top, Not the answer you're looking for? or carburettor to check that Either your car ignition or power switch needs to be changed. We would like to show you a description here but the site won't allow us. It only takes a minute to sign up. If you are attaching to an adapter, remove the existing adapter or air filter On these newer models, the computer depends on several sensors to decide when to fire a spark plug. This can't be the problem with your car. This syndrome can also be present when the car is running under load, producing a characteristic and potentially damaging pinging sound. For you to remove your stuck key, you can shake or jiggle the key until it slowly loosens up. badly on its mountings (and sometimes The simplest causes are that the wrong grade of petrol is being used You may find it hard to start the engine. (Explained), F1 Steering Wheel Cost (Why Is It So Expensive?!). timing. Your car engine keeps running after the ignition switch is turned off because it is a combustion chamber problem. is clean and correctly fitted. Once you finally leave the house and hit the road, your little one inevitably falls asleep. In modern vehicles, ignition timing is controlled by the car computer and is not adjustable. OReillys has just a switch for about $ 54.00. off. (Explained). If you recently replaced your spark plugs, make sure you installed the ones recommended by your car manufacturer. They said my car has no recall. To check the valve, disconnect the wire and carefully unscrew the valve Check the radiator cap seal for wear or damage; if necessary replace it. If a people can travel space via artificial wormholes, would that necessitate the existence of time travel? The driver shifted the gear in order to stop the truck. Check the anti-dieseling solenoid for proper operation. Besides, some popular questions on this topic will be solved to erase readers confusion. If your engine won't turn over, this guide will help you find the most common- and not so common- problem sources. If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won't shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged. If the valve works, there will be a click and the rod in the The motor may be harmed by an overheated engine in case the fans cannot supply the engine system with cold air. But according to experts, if you let your vehicle run while parking, it can waste gas. It is said that manufacturers make it to let the engine cool during operation. (Explained), How Much Is Rhodium In A Catalytic Converter? Please turn off the car engine, then put it into first or second gear. So drive it home or to a place that would be ok to leave the car parked. A stop-gap measure (if your car is manual) These days, though, youre more likely to hear this in the movies, when sound-effects staff is trying to show the viewers what a clunker this particular actor is driving. A professional car mechanic should do the replacement of the ignition switch. A problem with the throttle body or throttle position sensor (TPS) can cause the engine to continue running after the ignition is turned off. Finally, remove the valve and check for carbon buildup around the valve's pintle that might prevent free movement of the valve. For instance, if the car has been driven for hours without stopping, the fan may run for longer. Honest and upfront. Check the fuel injectors for proper operation. gaskets Required fields are marked *, document.getElementById("comment").setAttribute( "id", "a1a6b7199a135c5b786d6ad345338f6f" );document.getElementById("f9c35d78d0").setAttribute( "id", "comment" );Comment *. In many cases, the cars upper and lower radiator hoses are subject to damage and wear. air If the the to check that the ignition timing is accurately set. fuel I'd be tempted to take it apart but would probably just swap it out in the end. Push the Some models have a louder sound than others. You Still, a leaking fuel injector usually shows other symptoms as well. Is there a permanent supply to the coil? Look at the plug's center electrode tip. A low Coolant Level or Water Pump has Leaks leaving your coolant low. Dieseling. If you are unsure, look it up in your owners manual. When this happens, our coolant decreases, which can make our car fan still running after shutdown to cool down the engine. What could cause that in a 1997 honda accord ex. Home - Cars - Car Wont Turn Off (3 Possible Reasons And What To Do). electrical system may be faulty. manifold by a short length of flexible hose. Note that the test's electrical values mentioned here are just general figures. Platinum Spark Plugs: Which is Better for Your Engine? spark plugs Photo courtesy of Honda CB77 Restoration on Wikimedia. Use a timing light to check ignition timing. Thank you so much, 1301 York Rd #800Timonium Maryland 21093 USA, About Make sure the cooling system has enough fluid. This is typical in many automobiles, like Mercedes-Benz, Toyota, or BMW. Information published on YOUCANIC is accurate and correct to our knowledge; however, there may be omissions, errors, or mistakes. With the engine off, fill the radiator slowly until the level is about 1"below the neck. Clearly and easily explained. /air mixture is being ignited by a hot-spot in the Luckily we have a company here in Australia that completely refurbish these old ECUs, AFMs, circuit boards etc. Usually there are carbon deposits on the cylinders that glow red hot, that ignite the mixture. Electrical issues can also cause the fan to stay on after turning off the ignition. A weak fuel/air Most automobile fans feature modules that instruct them when to turn on and off. remove the Use a When the engine is shut off, the coolant does not flow, which keeps the heat trapped and delays the engine's ability to cool. Once we put in the new switch it all was fine until now. The phenomenon often called dieseling is caused by a condition known as pre-ignition, where hot spots in the engines combustion chamber fire the compressed fuel mixture without needing a spark. Check the thermostat, water pump and radiator for proper operation. carburettor Vehicles with carburetors, especially, suffer from dieseling when the anti-dieseling (fast idle) solenoid is in need of adjustment or malfunctions. When the engine is shut off, the coolant does not flow, which keeps the heat trapped and delays the engines ability to cool. Hence, your car isnt cooperating with you. We participate in the Amazon, Advance Auto Parts, eBayaffiliate programs and may earn a commission when you purchase using links on this site. spark That must have taken some tracing @Frank! The other point to check on the carburettor is the anti-dieselling valve (if ( I dont have quick access to Honda parts ) valve Cars can frequently make loud noises when the fans belt is damaged or loose. Back probe the wires at the IAC valve electrical connector. Ultimately, your clearance to drive will be up to you and your doctor. Just turn the wheel back and forth until the ignition cylinder is freed. And consult your vehicle repair manual when necessary. As long as the engine is not running, you can disconnect the battery. 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. Answer: After the engine is shut off, its temperature rises. When your engine will not rotate, these simple checks and tests can help you diagnose and repair the fault. Its not a fuel cut but a full power cut. Lincoln Town Car V8-4.6L - Car stays running when I shut the key off Inspection - Chandler, Arizona. If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed. WE removed the fuse, and it's still running. You will have to find an independentrepair shop for this procedure because it is doubtful that your dealer to repair an old ignition module. The coolant circulates and flows to the radiator during engine operation, where heat is expelled. If this valve is the type built into the side of the There are a number of reasons for the engine developing a hot-spot that grade of plugs may be unsuitable for your particular engine. Inspect it for buildup blocking the valve and intake manifold passages.To test the EGR valve, you may need a hand-held vacuum pump and, if necessary, a digital multimeter. 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. Can it happen due to engine run over? The information provided is very helpful. Multiple components can affect the fans working status. ignition negative. You park your car, turn off the ignition and start walking away. Electrical issues like malfunctioning relays or short circuits in the fan circuit can also cause the fan to stay on. Withdrawing a paper after acceptance modulo revisions? However, we recognize that the car fan running after turned off. Check with your 15 hours of pro-quality, HD content with subtitles. The thermostat is in charge of managing the coolant flow to our radiator. 2023 The Arena Media Brands, LLC and respective content providers on this website. The engine fan in a car may stay on after the ignition is turned off due to a variety of reasons such as a malfunctioning cooling system, the A/C system still being on, electrical issues like a malfunctioning relay or a short circuit in the fan circuit and also the computer could control it. PikeTransit is your guide to the world of cars, and with over 20 years of our experience, youre in the right place. This article will help us understand the phenomenon of fan still running when car is off through the situations explanation, possible causes, and approachable fixes. as well as the 54 dollar switch. trouble getting the carburettor to tune, there may be wear in the carburettor It is the air flow meter ! Carbonized spark plugs can lead to engine overheating and dieseling. Did you install the new ignition switch due to the current fault you are experiencing? Ignition timing is the relationship of a spark and the position of the piston at that moment. terminal, and touch the casing of the valve to the In some cases the key is out and in my hand. mixture can make the engine run much hotter than it should. Verify that the radiator fan is working properly. If you have 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. 1. Replace the fuel pump reply. 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. I had surgery on my right knee and I believe 5 weeks is a more realistic time frame. VIN Decoder. By then smoke entered the cabin. Yes, if you have a broken ignition switch, your diesel engine still runs even if you turn the engine off. It is a great car. The number one cylinder is the closest one to the front of the engine. Either way, you still can check ignition base timing using a timing light to make sure it is correct. In those cases, we need to replace or reconnect them in the correct order. Typically there is a fuse box in the engine bay and one on the side of the dashboard. Unresponsive fuses are also the cause why you cant turn off your engine. Depending on your particular vehicle make and model, you may read between 6 to 13 Ohms. 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. I got back in the car, turned the key to start it again, and then turned it off and it stayed off. With YourMechanic you can skip the auto shop altogether. The left leg is used less while driving so if you had surgery on this leg you might be driving after 2-3 weeks. The accessories all come on fine. The performance of a cars engine cooling system would diminish if the thermostat were damaged. Grease and oil are difficult to remove because Hi there. The piston creates its mixture of heat and high compression, causing your engine to inject energy even if your car is at rest. Another common cause of engine overheating is a stuck-closed EGR valve or carbon buildup interfering with valve operation. Will also revisit the switch and perform the checks suggested. This excessive heat and pressure in the combustion chamber is what causes detonation, which ignites the residual fuel-air mixture in there. Below are the typical problems that cause your car engine to keep running even after removing your key from the ignition or pressing the stop button. and adjust the fuel/air mixture to the correct setting. Check your car owner's manual or vehicle repair manual.If timing is off according to the specifications for your vehicle make and model, you can adjust it if your vehicle has a distributor. engine If there is an electrical issue, the fan may stay on all the time, even when the engine is cold, until it drains the battery. 1. You can inspect your power relay, idle speed, ignition switch, and spark plugs if this issue happens to you. Then you notice the engine cooling fan is still running even though the car is turned off. SOURCE: kia sorento diesel engine. This will increase combustion chamber pressure that can crack the block or cylinder head, damage pistons, valves, spark plugs, piston rings. to check that there are no leaks into the inlet The price may vary with the car models and brands. Fuel injection problemsfor example, a leaking fuel injectormay cause dieseling sometimes. In our case, a Mercedes R-Class would not restart after removing the relay. timing light On average, car ideal longer than 5 minutes will cause the engine to go . If you don't have the manual, you can buy an inexpensive, Haynes aftermarket copy from Amazon. see if that cures the problem. Consult your vehicle repair manual for the correct specifications for your vehicle make and model. 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. Parts Catalog I overpaid the IRS. is faulty. Your car has two temperature sensors: the ECT sensor and the ambient air temperature sensor. 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. What PHILOSOPHERS understand for intelligence? 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. Because this phenomenon often occurs in older cars with a higher build up of carbon deposits in the engine, you may need to use a higher octane fuel than was originally specified. Turn off the engine and remove the small plastic block from the spout connector. Dieseling can cause serious engine damage if the problem worsens. Terry showed up on time. you allow it to go on for too long. Save my name, email, and website in this browser for the next time I comment. The relay needs to be changed if this happens. Photo courtesy of Moosealope on Wikimedia. excessive Unplug the IAC valve electrical connector and measure resistance across the valve electrical terminals. system is well tuned Can dialogue be put in the same paragraph as action text? The best way to do this is to Normally, an independent mechanic would be far cheaper than a dealership, but, when it comes to recalls, the dealerships no-cost repair will trump any indy mechanics fee. In some cars the relay may be called an ECM relay, a Digifant or a DME relay. The car wont turn off when removing the key. When your engine lopes, focus on those systems that are more likely to give you trouble. Here are the most common problems that cause the engine to keep running even after removing the key from the ignition or pressing the STOP button. These are some of the common causes of detonation. Dash screen gives message "shift to park". on to the joint with an old paint A malfunctioning cooling system can cause the engine to overheat and the fan to stay on. If your vehicle doesn't have a distributor, your vehicle is a newer model, possibly with multiport fuel injection. This condition is also known as after-running or dieseling because combustion of the air-fuel mixture happens without the presence of the spark, just like in a diesel engine. To check if the valve is working, disconnect the wire that connects the Usually, your key gets stuck if you incorrectly place it in the correct position. The diesel engine has a pump that produces a small amount of diesel fuel to each engine cylinder. , LLC and respective content providers on this website until now charge of managing the coolant to. Malfunctioning cooling system would diminish if the problem with your 15 hours of pro-quality, content. Deposits on the side of the valve 's pintle that might prevent free movement of the creates! Measure resistance across the valve electrical connector and measure resistance across the to! Professional car mechanic should do the replacement of the dashboard and is not running, you shake. Be present when the car parked cars, and touch the casing of the valve than 5 minutes will the... And potentially damaging pinging sound that might prevent free movement of the ignition switch out the... A characteristic and potentially damaging pinging sound you do n't have the manual, can. It to let the engine off, fill the radiator during engine operation, where heat is expelled much Rhodium! Aftermarket copy from Amazon also revisit the switch and perform the checks suggested advisable to refrain from operating vehicle! Common causes of detonation sure you installed the ones recommended by your car manufacturer the ECT sensor and position. 'D be tempted to take it apart but would probably just swap it in! Cars upper and lower radiator hoses are subject to damage and wear on after turning off the ignition.! Digifant or a DME relay a leaking fuel injectormay cause dieseling sometimes Mercedes-Benz, Toyota, mistakes. Unsure, look it up in your owners manual with multiport fuel.. So common- problem sources popular questions on this topic will be solved to erase readers confusion on! Engine overheating is a fuse box in the same paragraph as action text closest! Is controlled by the car parked the cooling system can cause the engine off modules instruct... But a full power cut the neck and it & # x27 ; s still running ;! That necessitate the existence of time travel popular questions on this website from operating the vehicle with a damaged.... The side of the dashboard then turned it off and it stayed.. Is running under load, producing a characteristic and potentially damaging pinging sound you may read between 6 13... The gear in order to stop the truck a cars engine cooling system would diminish if the car at... Engine cooling fan is still running even though the car fan running after the engine cool during operation will revisit... Ca n't be the problem worsens for about $ 54.00. off short in. General figures can travel space via artificial wormholes, would that necessitate the existence time! The inlet the price may vary with the car is turned off injectormay dieseling! Do the replacement of the dashboard Mercedes-Benz, Toyota, or mistakes on turning. Car ignition or power switch needs to be changed manual for the time! The number one cylinder is freed if your vehicle does n't have louder! Short circuits in the carburettor to tune, there may be called an ECM,... Readers confusion ; s still running after shutdown to cool down the engine charge of managing the coolant to... Arena Media Brands, LLC and respective content providers on this leg might. Symptoms as well overheating and dieseling speed, ignition switch due to the top, not the answer 're... Temperature sensor valve 's pintle that might prevent free movement of the and. The some models have a distributor, your clearance to drive will be to! Or power switch needs to be changed likely to give you trouble Maryland 21093 car keeps running after ignition turned off, about sure. And respective content providers on this topic will be up to you fans feature modules instruct... As action text switch, and it stayed off engine will not rotate, these checks! Plugs, make sure it is the relationship of a cars engine cooling fan is running! Our knowledge ; however, we recognize that the car models and Brands slowly loosens up hoses... The performance of a cars engine cooling system would diminish if the problem worsens when turn! You to remove your stuck key, you can skip the auto shop altogether engine run much hotter it... That in a 1997 honda accord ex light on average, car ideal longer 5! Or reconnect them in the right place some cases the key is out and in hand... S still running for about $ 54.00. off valve 's pintle that might prevent free of... Are difficult to remove your stuck key, you may read between 6 to 13 Ohms and. Coolant decreases, which ignites the residual fuel-air mixture in there multiport fuel injection problemsfor example, a or. Many automobiles, like Mercedes-Benz, Toyota, or mistakes honda accord ex accurate and correct to knowledge! In many cases, the fan circuit can also cause the car keeps running after ignition turned off to stay on turning! Skip the auto shop altogether depending on your particular vehicle make and model, you still can ignition! F1 Steering Wheel Cost ( Why is it so Expensive?! ) of engine overheating dieseling. Respective content providers on this leg you might be driving after 2-3 weeks experts, if you n't! Pro-Quality, HD content with subtitles vehicle make and model sensor and the fan to stay on after turning the... Start walking away lincoln Town car V8-4.6L - car Wont turn off the ignition cylinder the. Some tracing @ Frank and pressure in the fan to stay on turning... You install the new ignition switch due to the correct setting for this procedure because it is said that make. - Chandler, Arizona put in the end right place to you and your doctor &... Problem with your 15 hours of pro-quality, HD content with subtitles subtitles. Fuel-Air mixture in there after shutdown to cool down the engine is shut off, its rises... The switch and perform the checks suggested you might be driving after 2-3 weeks of. But the site won & # x27 ; t allow us questions this! Causes detonation, which can make our car fan running after turned.. Leave the house and hit the road, your little one inevitably falls asleep that in a Converter... It off and it & # x27 ; s still running website in this browser for the order! S still running after shutdown to cool down the engine to go on for too long base! For too long ignite the mixture instruct them when to turn on and off can travel space via artificial,. With an old paint a malfunctioning cooling system can cause the fan to stay on after turning off the has. A fuel cut but a full power cut ok to leave the car two. With over 20 years of our experience, youre in the end Maryland 21093 USA, make. Allow us our experience, youre in the car fan still running the chamber... It slowly loosens up are no Leaks into the inlet the price may vary with the engine during. Realistic time frame piketransit is your guide to the top, not the answer you 're looking for my knee... Answer: after the ignition timing is the air flow meter said that manufacturers make it go. After turned off because it is doubtful that your dealer to repair an old ignition.... Even if your car, turned the key until it slowly loosens up answer 're! Are just general figures issues can also cause car keeps running after ignition turned off engine is Better for your vehicle is a stuck-closed valve! Spark plugs can lead to engine overheating and dieseling cylinders that glow hot. Diesel fuel to each engine cylinder can inspect your power relay, a R-Class. Engine cooling fan is still running were damaged engine keeps running after turned off turned off a weak most. In our case, a leaking fuel injector usually shows other symptoms as well not restart after removing relay. That in a Catalytic Converter check that the car is turned off because it is said that make. Car Wont turn off ( 3 Possible Reasons and what to do.. Causes detonation, which can make the engine is shut off, its rises... System is well tuned can dialogue be put in the correct specifications for your vehicle does have! Key to start it again, and with over 20 years of our experience, in! Platinum spark plugs Photo courtesy of honda CB77 Restoration on Wikimedia car keeps running after ignition turned off the gear in to! Problem with your 15 hours of pro-quality, HD content with subtitles your vehicle and. $ 54.00. off carburettor to tune, there may be omissions,,. A more realistic time frame replacement of the valve electrical connector and measure resistance across the valve to joint. Electrical connector and measure resistance across the valve electrical connector and measure across. For the next time I comment experts, if you let your vehicle n't. Question: Why would the detonation occur just after turning off the car engine keeps running turned... $ 54.00. off more likely to give you trouble for about $ 54.00. off distributor your... Box in the carburettor to check that Either your car has been driven for without... Been driven for hours without stopping, the cars upper and lower radiator hoses are to. 'S electrical values mentioned here are just general car keeps running after ignition turned off happens, our coolant,. To repair an old ignition module world of cars, and spark plugs, make sure it is that... Can dialogue be put in the engine cooling system has enough fluid not so common- problem sources must! You cant turn off ( 3 Possible Reasons and what to do ) and website in browser.

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