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#1
11-17-2010, 08:26 PM
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190d won't shut off - advice needed
1986 190d, 2.5 NA, OM602.911
Turn the key off and .... NOTHING. engine won't shut off! Happened suddenly (several stops on the way home and at the next one it stayed running) Hit the stop lever and it stops. Brake booster and heater controls still work so I know the Vac pump is working. Fixed several cracked vac lines today, still no good. Sometimes it does not even try to shut off, other times the engine slowly looses speed, almost stops then picks back up again. Never shuts down. I can suck on the line to the shutoff valve and the engine stops, so the valve is working. I am going through my manuals right now to get some more information. Possibly a failed shut down switch, so sudden of a failure? I should also ad that sudden failure of the shutdown is not entirely true, from time to time it would delay shutdown or shut down slow, but always shut down. Lately it had been shutting down immediatly. Any advice anyone could lend would be greatly appreciated!!!
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing. Last edited by weird beard; 11-17-2010 at 09:12 PM. Reason: answered one of my own questions 
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#3
11-18-2010, 11:44 AM
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Thanks for asking this, weird beard. Same thing happened to me yesterday. It's been diesleling for a while, but would always die. It did it last winter when it was colder, but stopped for the summer. I bought a new shut off valve back then, but didn't install it when it quit running on after shut down. Guess it's time to get out that new mighty vac and go through the whole system. I've been putting off my first valve adjustment too, so it's time to "get under the hood" again. Good luck. I've subscribed to your post, and I'm starting to dig into the search for other posts. I'll let you know if I come up with anything solid. Lee
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"Knowing is not enough, we must apply. Willing is not enough, we must do." Goethe *********************************** 1951 Chevy 3100 2003 Indian Chief Roadmaster 1983 GMC 1 ton Dually 1982 Chevy 1 ton Dually, service body (sold) '90 GMC Suburban 6.2 "SS Veg-Burban" (single tank WVO\diesel conversion) SOLD '81 300D ~ Mama's car...my job (now my car)(but still my job) SOLD '83 300sd ~ rescue car SOLD 2005 Ford Taurus (Mama's new car)(NOT my job!)
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#4
11-18-2010, 09:43 PM
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Cheap master vac gauge is my friend now. What it ended up being was one of the rubber inline connectors on the vac line to the shutoff valve was loose (hose was swollen)
Worked my way back from the key switch checking the vac signal. Lost it just after the connection on the drivers fender. I guess I will need to track down all the little inline connectors and replace them. I replaced a bunch of cracked hoses and removed all the parts related to my non functional egr valve. Good maintenance wise, didn't fix the problem. The stop lever would drop a bit, but not enough. All I had to do was touch the lever and the engine would stop. I was getting concerned the vac pump was failing.
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.
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