Quickcomputerstips
- What causes carburetor dieseling?
- Why does my engine still run after I shut it off?
- What causes dieseling in a fuel injected engine?
- What causes dieseling in a carbureted engine?
- Can bad timing cause dieseling?
- What causes engine to run on after the ignition is switched off?
- What is anti Dieseling solenoid?
- Why car keeps running after ignition turned off?
- Why won't my car turn off when I take the key out?
- Why does it sound like my car is still running after I turn it off?
What causes carburetor dieseling?
Dieseling is a common problem with high compression / high performance engines, especially in warm weather or when the engine is hot. In this case, it's usually caused by running "cheap" gas with inadequate octane. In this case it can usually be remedied by switching to a higher octane fuel.
Why does my engine still run after I shut it off?
Answer: After the engine is shut off, its temperature rises. This excessive heat and pressure in the combustion chamber is what causes detonation, which ignites the residual fuel-air mixture in there.
What causes dieseling in a fuel injected engine?
Dieseling occurs whenever fuel is ignited by another heat source other than a spark plug. It could last a few seconds or few minutes, depending on the amount of fuel remaining in the combustion chamber and how long it takes for the ignition source to cool down. ... A faulty carburetor connection can cause dieseling.
What causes dieseling in a carbureted engine?
In a gasoline engine with a carburetor, dieseling occurs when the engine continues to run even after you have shut off the ignition. The hot spark plug continues to detonate the fuel, and the carburetor simply supplies the fuel, because it is not always controlled electronically.
Can bad timing cause dieseling?
Dieseling can occur for several reasons: ... Similarly, hot vaporized oil gases from the engine crankcase can provide ample fuel for dieseling. Incorrect timing. An engine that runs too hot or too lean may produce an environment conducive to allowing unspent fuel to burn.
What causes engine to run on after the ignition is switched off?
Running-on is when the engine continues to turn after you've switched off the ignition because the fuel /air mixture is being ignited by a hot-spot in the combustion chamber .
What is anti Dieseling solenoid?
Moveable throttle stop, also known as idle-stop solenoid, which takes place of idle adjustment screw and prevents engine running on ('dieseling') when switched off.
Why car keeps running after ignition turned off?
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. ... While it's quite rare, a car can continue to be powered up by a sticking main relay. If the car finally powers down after the relay has been removed, replace the relay.
Why won't my car turn off when I take the key out?
Your engine will continue to run even when you remove the key from the ignition because the fuel pump is not shutting off. This problem is typically caused by a faulty fuel pump relay or a defective ignition switch.
Why does it sound like my car is still running after I turn it off?
Engine cooling fans and other systems are programmed to keep running in some cars even when the engine is off. ... And many other sounds from under the hood of a car that has been shut off are also normal.
