1985 Mercedes Benz 300d Run-on Diesel

1985 MERCEDES BENZ 300D
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JCAKERS
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Engine Mechanical problem
1985 Mercedes Benz 300d Two Wheel Drive Automatic 356000 miles

I have a 5-cyl. diesel engine. When I turn the key off, the car continues to run. I understand it is either a leak in a vacuum line, the vacuum pump, or the vacuum switch behind the dash.

Any tips on how to troubleshoot the problem? Diagrams that might be helpful? etc.
Nov 8, 2010 at 4:42 AM
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DR LOOT
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For check all of your vacuum lines make sure they are in good condition, the one on the back of the injection pump which goes up in two a T is a shut off, remove the line while the vehicle is running make sure there is vacuum there, if there is, take a hose attached to the injection pump and suck you should be able to kill it. Do that and report
Dec 10, 2011 at 6:00 PM
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