Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 12-11-2001, 08:21 AM
Registered User
Join Date: May 2001
Posts: 356
fuel pressure regulator

the fuel pressure regulator on my 103 Engine
has what seems to be a vacuum line coming out the back.
It is cut off. Should it be ? or where should it lead to?
And a another question for all - I know replacing the fuel injectors should improve performance and other ailments .Will it also improve gas milage ?

thanks for the advice and knowledge shared.
Reply With Quote
Old 12-11-2001, 07:42 PM
Registered User
Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
That vacuum line is a safety precaution. If the regulator diaphragm fails, the fuel will be sprayed into the crankcase vent through the small line. It is supposed to go on into the hose on top of the air cleaner.

New fuel injectors will help if the old ones are partially clogged or pitted.
Donnie Drummonds
Reply With Quote
Old 12-12-2001, 02:52 AM
Registered User
Join Date: May 2001
Posts: 356
When changing the air filter and looking at the breather hose, I always wondered what that "additional" little hole was for....

thanks Benzmac.

this truely is the mother of all forums. !
Reply With Quote


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Line Pressure on 420 SEL Cigar Havana Tech Help 1 09-14-2004 12:17 AM
Changing Fuel Pressure Regulator, M103 (Need Advice) Michael Stoic Tech Help 1 11-06-2003 12:07 PM
124 Fuel Pressure Regulator hose chicago124 Tech Help 5 01-21-2003 04:31 PM
Fuel pressure regulator leaking. Cap'n Carageous Tech Help 4 11-21-2002 06:10 PM
Fuel pressure regulator help... Badinfo Tech Help 8 06-18-2002 02:20 AM

All times are GMT -4. The time now is 05:44 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page