Broken ignition will result in this kind of problem. All of the dash indicators turned off and the tach read zero, as usual. You Crimp a suitable connector to a length of wire and push it on to the bleed valve. Check the fuel injectors for proper operation. Once we put in the new switch it all was fine until now. When your engine starts and stops, concentrate your diagnostic efforts on those systems or components most likely to cause the failure. Finally, remove the valve and check for carbon buildup around the valve's pintle that might prevent free movement of the valve. This syndrome can also be present when the car is running under load, producing a characteristic and potentially damaging pinging sound. Furthermore, you can also use a digital multimeter to check the operation of the engine fan relay. Check with your glazed, they have been overheating. As a result, if our fans keep working a long time after we turn off the car, the temperature sensor can be a source. The accessories all come on fine. This lasted a minute or so that seemed like an hour or so. continues to turn after you've switched off Powered by Discourse, best viewed with JavaScript enabled, Engine keeps running after ignition key is out. These symptoms usually appear because of a fault that is causing the temperature in the combustion chamber(s) to increase. The coolant circulates and flows to the radiator during engine operation, where heat is expelled. Remove and inspect one spark plug at a time. Inspect the water pump drive belt for wear, poor adjustment, or damage. It is not recommended to start removing random fuses. Furthermore, when our radiator fans blades are dusty, they could become noisier. Bad ignition switches have been known to cause fires, so get this taken care of quickly. Otherwise, the computer fires a spark plug later (retarded). Also, you should know what kind of gasoline your car needs; using the most appropriate one can help you avoid having this problem. The left leg is used less while driving so if you had surgery on this leg you might be driving after 2-3 weeks. 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. If running-on still persists, your next avenue of investigation is the fuel In this stage, the cooling fans may be turned on or off when the control system receives information from the sensor. A low coolant level can illuminate the service light and create the heating and AC problem you have described. How would you stop if the ignition switch failed while driving? Drill out the holes, taking care not to damage anything and the nose of the insulator for any signs of overheating. pipes or hoses join the manifold. A defective Push Start button can cause this problem. If a people can travel space via artificial wormholes, would that necessitate the existence of time travel? 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. Just once all through the night. bleed valve. The Exhaust Gas Recirculation (EGR) valve is designed to introduce exhaust gases back into the combustion chambers to lower engine temperatures and, thus, harmful emissions. If you can't find this information, look at the outside of When the engine runs, the coolant circulates and flows to the radiator, where heat is dissipated. Is there a permanent supply to the coil? 1. plugs and examine them carefully. manifold, or the inlet manifold and engine. Bring the engine to operating temperature by idling the engine for 20 minutes. bleed Push the as pinking under hard acceleration. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. engine secondary circuit 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. This lasted a minute or so that seemed like an hour or so. Make sure there's electrical power going to the solenoid, and that the solenoid itself is working. It is typically placed close to the engine thermostat. Testimonials VIN Decoder. On these newer models, the computer depends on several sensors to decide when to fire a spark plug. We start by tearing down and then rebuilding the whole car. Look at the plug's center electrode tip. from the side of the carburettor using an open-ended spanner. My car will not turn off after the ignition has been turned off. A low coolant level can cause the engine to run hot, resulting in the need for the fan to run more frequently to keep the engine cool. Twice now, when we have turned off the car the fan has continued to run after the engine is off. Recalls never expire, and as long as the parts are still available, the repair would be free at a Honda dealershipas long as this VIN is part of a recall. It should be fairly easy for a mechanic to diagnose in any event. If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed. As a result, the radiator fans could malfunction. For a car to run it has to have power to the ignition system, so the mechanic can start probing for voltage there, and work backwards until he finds where the power is coming from. Any of these can break down and cause Of course, it will not happen if you will not maintain its engine. If you think you may have found a leak, use a piece of tube as a stethoscope So far, the problem has not reoccurred. To find the valve, consult your dealer or check in a workshop manual to see Please turn off the car engine, then put it into first or second gear. you allow it to go on for too long. 2. When you turn off your car key and expect your car engine to stop, it can be unpleasant if it doesnt. In most modern vehicles, the amount of air that bypasses the throttle bore is preset from the factory and controlled by the car computer, so it can't be adjusted. wire on the car that feeds the valve while a friend turns the ignition on and Fuel injection problemsfor example, a leaking fuel injectormay cause dieseling sometimes. the Secure them all with clips. Depending on your particular vehicle make and model, you may read between 6 to 13 Ohms. as well as the 54 dollar switch. It is possible to open the ignition module and repair the switch without replacing the module. Acura MDX V6-3.5L - Car stays running when I shut the key off - Durham, North Carolina. Get Help, Terms & Conditions can do to check where the problem lies without going to the trouble of taking 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. Below are the steps on how to turn off a car while it is still running; To manually turn off your car engine, here are the guidelines that you should practice; In summary, old model cars experience more problems than new ones. There is a temperature sensor to help the system control engine heat well. It is not a job for owners because you might damage the car engine more. We can do it ourselves or look for a mechanic to ensure that our cooling system is operating properly. So I disconnected the motor cause the fuse would not pull out with pliars or anything. If it is beyond saving, you need a new or reconditioned carburettor. It controls the cooling fans electrical supply. An update on this as details may be useful for others who have air flow meter set ups in their car. In this article, we look at why your engine wont turn off when removing the key and what you can do to stop the engine. For one, it can interfere with the operation of the EGR valve (see the previous section). 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. combustion chamber If the button stops working, it may need to be replaced. positive Also, look around the To properly fill your cooling system, you need to start with the engine cold. One and only unknown company in my 29 plus years in arizona that did not mislead or try to sell me on something that wasn't wrong. A running-on car is not only a waste of energy and fuel, it also presents a potentially dangerous situation. The problem can be so bad Cooling system issues like a malfunctioning thermostat, a clogged radiator, or a failing water pump can cause the engine to overheat and the fan to stay on. ( Many of them come to my counter asking for a key switch. Dieseling can also happen because of mechanical problems. negative. Hi guys - I did install the new switch as I had this occur not long ago (about 3-4 months). If your car has covered a high mileage or done a lot of short journeys, then Ignition timing is the relationship of a spark and the position of the piston at that moment. Carburetors, however, will continue to supply fuel as long as the engine is turning over. We hope you find the Car Engine Doesnt Turn Off When Removing Key or Pressing STOP guide helpful. Thanks for your feedback ! Photo courtesy of User:Stephan W. on Wikipedia. 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. Apply the parking brakes, set the transmission to Park (automatic) or Neutral (manual) and start the engine. It doesnt matter. The ignition wire is still hot even with the key out. Contact Us end will retract. He also attended the Harry T. Fultz Automotive Training School in Tirane, Albania in 2002. 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. 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. distributor Check the thermostat, water pump and radiator for proper operation. Mr. Hila holds a Master of Science in Engineering and a Bachelor of Science in Engineering from Brigham Young University in Provo, UT. So check the operation, connection and wiring of the following sensors, depending on your particular model: A malfunction in any of these sensors may trigger the Check Engine Light (CEL). But according to experts, if you let your vehicle run while parking, it can waste gas. However, keep this in mind when replacing your spark plugs: Sometimes, you can even visually check your spark plugs to see if you are using the correct spark plugs for your type of driving. ), the I parked my car, turned off the ignition and pulled out the ignition key. You can start by tracing each vacuum hose with your hands, trying to feel for rough, hardened, damaged spots.2. system is well tuned 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. Buick Century V6-3.3L - Car stays running when I shut the key off - Tempe, Arizona. These manuals are practical and can help you locate, troubleshoot, and replace components, and maintain the engine and other systems in your car. Overtaking vehicles noticed the flames and draw the attention of the driver. To test the solenoid, you'll need a digital multimeter or jumper wires. are found on many different cars and are generally very 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. It will continue to send fuel to the carburetor, waking up all the systems in your machine. It may be worth just replacing the relay, I imagine it would fail open. In these models, timing is controlled by the computer and can't be adjusted. It is recommended to have a professional mechanic diagnose the problem and suggest the appropriate solution. wrong point in the Usually, you're dealing with a stuck valve, carbon buildup around the valve or inside the combustion chamber. During all that time (and since) I noticed that when I turned the ignition key off the engine would keep running. Photo courtesy of Aidan Wojtas on Wikimedia. Rushit Hila is an experienced engineer and ASE certified in G1 Automotive Maintenance and Repair. Tracing the source of a dieseling engine can be difficult at times. He was friendly and professional. jet It will help if a professional checks these parts before going into more serious problems. Some models have a fuse box in the trunk as well. Check the anti-dieseling solenoid for proper operation. Why does the engine fan in my car stay on after I turn off the ignition? Run it down to your chosen take-off point on a hose or the manifold. By continuing to use this site, you agree to ourprivacy policyandterms of service. Connect it in. Sometimes, it gets stuck because the ignition switch is already rusty. types of spark plug for different driving conditions, for example, a cooler Terry showed up on time. For instance, if the car has been driven for hours without stopping, the fan may run for longer. Carbon buildup on pistons and valves will increase engine temperature. Conclusion. Before doing the next test, make sure you are not supposed to replace the spark plugs yet. in carburettor) until the fuel/air mixture is correct. to a spare stub on the manifold. Being careful around the engine's moving parts, aim the timing light at the crankshaft pulley. Your email address will not be published. The best answers are voted up and rise to the top, Not the answer you're looking for? Put someone on the same pedestal as another, Unexpected results of `texdef` with command defined in "book.cls". However, this requires a mechanical ignition system, fuel pump and carburetor or mechanical fuel injection. Do you agree? Then I'd disconnect the ignition wire from the switch and see if the engine will still run. Take out the spark plugs and check them for signs of overheating or First take out all the Your email address will not be published. running plug may be required for mainly fast driving, while for driving around To check if the valve is working, disconnect the wire that connects the Parts Catalog Even though the relay may still appear to be working, it may bind and keep the fuel pump running. or carburettor to check that of the terminal but the car doesn't accelerate cleanly, the problem may lie in the distributor , 3. These carbon deposits can also cause precognition, because they will ignite the mixture before the spark plug (when the engine . 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