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The car engine does not turn off immediately after you turn it off?
Wiki User
∙ 8y ago
I think it's called "diesel effect". You need to check the combustion chambers for carbon deposits, also make sure to check ECU for error codes. You might have some ignition system problem.
Can also be caused by low octane fuel or engine timing being off mark.
Note: A diesel engine does not need anything but fuel (air+diesel) to run. There is solenoid (a spring loaded electric operated valve) in the fuel line to cut out the supply and stop the engine. When it is on, it creates a magnetic field and might pick up metal particules, hence dirt builds up and when the ignition is turned off it might not be able to shut the fuel line completely. Common issue and easy to fix, if you know what you are doing - just remove and clean it off. When air gets into the fuel system it will not start up until cleared though, might have to crank longer than usual ( even as long as 1 minute).
Wiki User
∙ 8y ago
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