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Old 11-29-2000, 07:45 PM
Jim Sharkey
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The engine in my 240D will not stop running after the ignition is switched off. Initially after switching off the ignition ,the engine ran on for about 5 seconds, after some time it would not switch off at all. I have changed the vacume pump at the front of the engine. No success, the problem persists. The vacume connections at the ignition end seem to be OK. All the pipelines and connections look to be fine. no sign of any leaks anywhere. Any suggested solutions welcome. Thanks. Jim

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Old 11-29-2000, 08:10 PM
MikeTangas's Avatar
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Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
Do you have a vacuum gauge? If not get one, or get one of the hand vacuum pumps with intgral guage. Then I would check for vacuum at the line that runs to the shut off valve. When you pull the vacuum line off the shut off valve, check for the pressence of oil. If oil present, the bellows are probably shot, and the source of your problem. If you show low or no vacuum at the line supplying the shut off valve, then you have a vacuum leak elsewhere and need to back track along the vacuum system.
Mike Tangas
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Old 11-29-2000, 11:31 PM
SW SW is offline
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Join Date: Aug 2000
Location: Houston, TX. USA
Posts: 590
There should be a vacuum line that connects to the top of the fuel injection pump (most probably to the shut off valve that Mike is referring to). On my car the line is grey with a purple stripe (i think). The line goes over the oil filter housing. If the line is not connected, my engine will not shut off. I always accidentally disconnect this line when I remove the oil filter during an oil change. Good luck.

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