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 10-16-2014, 01:03 PM
Registered User
 
Join Date: Jul 2012
Posts: 51
Angry HELP .... 1986 300sdl fuel shut off wont release -- how to fix it ???

FINALLY after a long time of not working i replaced the vaccum pump on my 86 300 sdl and NOW when i turn the key off it operates the fuel shut-off valve to stop the motor ... but THEN it wont release it so i can start it again ... i have to manually put a screwdriver etc.... to hold the level open ..... so i can start it ...... becuz YES it has good vacuum and interestingly enuf once it has been running for a bit u can remove the " screwdriver and it will " stay " running ......

it's damn annoying to have to open the hood to stop or start the car grrrrrrrrrrrr

any ideas what may be causing it ???

Reply With Quote
  #2  
Old 10-16-2014, 02:22 PM
Registered User
 
Join Date: Mar 2009
Location: San Diego
Posts: 3,537
I think you reverse the brown vacuum line from the ignition switch to the shutoff valve. Locate the brown line from under hood into cabin and reverse with brown one coming out of cabin.
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
Reply With Quote
  #3  
Old 10-17-2014, 12:42 AM
Registered User
 
Join Date: Oct 2012
Posts: 5,924
This nice gentleman phoned me today. I asked him if he was using this site as a help. Told him it was the best site I knew of for cars of his type and meant it.

I did explain as well that vacuum was probably present on the shutoff when it should not be in all probability. Plus just pull the vacuum line to verify. One of his describd situations more or less verified it to me as the likely cause other than the obvious.

Then quickly suggested a few things but had to leave as well then so we terminated the conversation.

I am happy to notice he is using the site as well. It can make hard easy. A kinked vacuum hose could make release of the vacuum too slow. Or the vacuum switch portion of the ignition switch is only slightly opening. A vacuum hose mix up is a better candidate though as mentioned. Although it should not slowly self bleed down with a little time when the car is running. With a new vacuum pump the vacuum is probably strong as it should be.


Last edited by barry12345; 10-17-2014 at 12:58 AM.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 02:53 PM.


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