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1983 mercedes 300D turbo diesal

 
 
Reply Tue 14 Jul, 2009 10:46 am
Car will not turn off.Must open hood and push stop button attached to the carburator.
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Type: Question • Score: 0 • Views: 4,758 • Replies: 2
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NickFun
 
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Reply Tue 14 Jul, 2009 11:47 am
@robert thomas,
Man, that sucks.
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hamburgboy
 
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Reply Tue 14 Jul, 2009 04:47 pm
@robert thomas,
the problem may be a " vacuum leak " .

http://wiki.answers.com/Q/84_mercedes_300D_turbo_diesel_problems_with_engine_it's_running_after_ignition_switch_is_turned_off

Quote:
Answer
Technically, a diesel engine does not need any outside electrical source to keep it running. Injectors are mechanical and keep running until they are forced off, usually by a solenoid. Check the shutoff mechanism to make sure it isn't sticking.


Answer
This diesel shuts off using vacuum. If your vacuum is low or leaking, the vehicle will not shut off using the key. You have to open the hood and push the SHUT OFF plate near the top of the engine in the fuel linkage.


New Answer
Vacuum leaks are common and will keep the door locks, climate control, and engine shut off from working. The shut off valve, located on the back of the injection pump, can fail. It is vacuum operated and the diaphragm can tear. Vacuum test this valve. If it holds vacuum keep looking for other vacuum leaks, if it leaks replace it.

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