Car Engine Running After Turned Off

This is the third time this week where after I turn the knob to off the engine stays running. Unless there is an electrical issue it may stay on all the time.

Why Does My Engine Still Try To Run After I Shut It Off

KenF answered 3 years ago.

. 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. Some cars are designed to have the fan run for a few minutes after you turn the car off. Running-on is when the engine continues to turn after youve switched off the ignition because the fuel air mixture is being ignited by a hot-spot in the combustion chamber.

Eight cylinder engines may idle around 600. Ignition Module Keyless Start. This is due to a very simple reason.

The fan keep running after switching off is a safety measure when the ECM cannot read the temperature it will keep the fan blowing for 10 to 15 mins after you switch off to make sure the car is not in a situation where it can cause a fire as the ECM cannot determine if the engine is ice cold or burning hot. I didnt get a chance to go back to the dealers to ask about this but it really did sound like the car was going to explode. It runs for about 5 - 10 seconds after the key is turned off.

Up to 8 cash back Weve all heard a car continuing to run after the ignition key has been turned off and it usually sounds pretty bad with all kinds of clonking and coughing noises. Our Chevy Cruze is a 2014 with the 18 liter engine. Up to 8 cash back If the engine idle speed is too high it may cause the car to diesel after it is shut off.

Engines are still hot when you shut them off the fans need to run to continue removing heat from the cooling system. My Ford dealer also cant tell me whats wrong. 2012 Sedan 36 DI AWD with 58k miles.

Those used to be installed only on vehicles with automatic climate control with variable speed fans but now theyre installed on many late model vehicles. Generally an OEM harness will not have the problem of alternator run-on as there is usually a resistance wire in the dash harness to keep this from happening. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car.

The reason behind this could be faulty temperature sensors or some issue with the cooling fan or ECU unit. Not a diesel not a turbo. The radiator fan may run up to five minutes and sometimes longer.

The fan thermostat is stuck closed. It also only happens sometimes and normally runs fine just after the engine light has been turned off. It sounded like the fan trying to cool down or something also the exhaust was boiling hot too.

Hook up your tachometer according to instructions and check the idle speed. Running-on is when the engine continues to turn after youve switched off the ignition because the fuel air mixture is being ignited by a hot-spot in the combustion chamber. I know that the fans will typically stay on after turning thr car off but i am positive that this is the engine staying running.

Your car fan will run for a few minutes after you turn off the car then turn it off. Furthermore because the mixture is often firing at the wrong point in the cycle the engine does not run smoothly but jerks and rocks badly on its mountings and sometimes backfires. Its also a standard car.

Thats normal especially given where you live. You should leave this to waste away. The problem can be so bad that the engine runs on for a minute or more if left alone.

With the ignition turned off and the car continuing to run simply remove the plug from the. 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 due to the engine kicking back upon shutdown drawing fuel through the carburetor into the engine and igniting it. To figure out where the problem exists start the car and with the key in the ON position and the car running turn off the key.

I had to use the battery disconnect in the trunk to turn it off. But if doesnt stop until the battery drains then it might be a faulty switch or temperature sensor. In neither of these were we idling for a long period of time prior to turning off the car such that the engine would have been hotter than usual.

The cooling fan in your car keeps running long after the car is shut off due to a overheating or fault with the relay. If your car uses a blower motor controller it can keep running the blower motor after you shut down the engine. Initially I suspected the ignition switch was the.

This happens after a short drive or a long drive so the engine could be cold or hot although my temperature gauge hasnt ever indicated its hot usually the. If your cars carpet is damp and smells like an engine compartment the heater core is most likely leaking. There isnt a record at the temperature so there is still a bit of humming similar to running.

Recently the enginefan doesnt turn off after I switch off the ignition and it sounds like the engine is still running often for over 5 minutes and many times up to 10 minutes. I have a professionally restored 1955 BN1 with several hundred miles on the restoration. Most four and six cylinder engines should idle around 850 to 900 RPM.

Dropped them off at a house when I turned off engine I noticed a loud noise coming form the front of the car. This is normal in many vehicles such as BMW or Mercedes-Benz. 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 due to the engine kicking back upon shutdown drawing fuel through the carburetor into the engine and igniting it.

The cooling fan usually shuts off within a few minutes of the engine being shut off. Twice now when we have turned off the car the fan has continued to run after the engine is off. Or if the fan stays running when the engine and radiator are cool you have a very cheap problem.

The ignition module may fail or if your car is equipped with an Engine Push to the Start button the Keyless module could be the culprit. In fact engine heat can increase when you first shut them off since water pump is no longer circulating coolant as hot coolant expands from the heads and into. Here are the most common problems that cause the engine to keep running even after removing the key from the ignition or press the STOP button.

When the engine is turned off the cooling chamber indicates to the fan to continue running until the temperature has cooled. This is because when the heater is turned off coolant sits in the heater core and is only pushed back into the main cooling system when the engine is running and the heater is turned on. After a ride I turned off the ignition key and the car kept running.

The nav screen goes down gauges turn off etc but the motor is still on.

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