Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-06-2008, 11:13 AM
Registered User
 
Join Date: Nov 2006
Posts: 200
‘80 300SD…Engine Turn Off Problem

Engine won’t turn off with key. Have to go under hood and use manual shut off lever. What’s the fix and what parts do I need to get?

thanks
Bill

Reply With Quote
  #2  
Old 11-06-2008, 11:18 AM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,281
Check for leaks in your vacuum system... either T fittings, lines, or the actual vacuum pump....
Reply With Quote
  #3  
Old 11-06-2008, 11:54 AM
bgkast's Avatar
Rollin' on 16s
 
Join Date: Dec 2005
Location: Vancouver WA
Posts: 6,528
Use the search function. This problem has been covered hundreds of times
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine
Reply With Quote
  #4  
Old 11-06-2008, 03:09 PM
Biodiesel300TD's Avatar
|3iodiesel300T|)
 
Join Date: Dec 2004
Location: Albany, OR
Posts: 4,845
You have a vacuum leak in the system somewhere. Time to get a mity vac and start tracking down leaks, and looking for cracked rubber vac connectors.

BTW, why all the bold and giant text?
__________________
Andrew
'04 Jetta TDI Wagon
'82 300TD ~ Winnie ~ Sold
'77 300D ~ Sold
Reply With Quote
  #5  
Old 11-06-2008, 04:19 PM
Squiggle Dog's Avatar
https://fintail.org
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 3,777
Yep, it should be covered in other posts. Same thing was happening to my 1979 300SD and it was the fuel shut off valve located at the back of the injection pump. The diaphragm ruptured and oil got into the vacuum lines and made its way into the ignition switch. It's a good idea to clean or replace the vacuum lines going to the ignition switch after replacing the shut off valve.

__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 04:47 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page