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 01-11-2007, 02:49 PM
Registered User
 
Join Date: Jan 2007
Posts: 2
308 CDI 2.2 won't start - hot or cold

Hi all!
my Sprinter CDI 308 2.2 was running fine until one day I simply turn the key off. When tried to start it again just 10 seconds after this it couldn't start. I crank it til the battery went flat but no luck. After this someone gave me the idea of spaying some easy start into the air pipe and...miracle - it started straight away. I drove back home with no problems but as soon as I turned the key off and tried to start it, it would get going without easystart. I borrowed a carsoft interface to check the ECU and found out that there ware 5 errors stored on it. I erased them and tried to start it but the problem remained. Then a changed the fuel filter together with the water sensor (the one that goes underneath the filter), stack the pipe which feeds the filter in a bottle full of fuel (just in case there something wrong along the system from the tank to the filter) but the problem was still there. Then removed the plastic cover to expose the common rai, undid the pipe which feeds it, cranked the engine and found out that the pipe is bleeding. After that I undid each one of the 4 pipes feeding the injectors but found out that there is fuel there as well. The engine still sounds great but won't start without easystart. No errors are stored on the ECU neither. Have anyone had similar problem and do you guys have any suggestions of what could have caused it?

Reply With Quote
  #2  
Old 01-11-2007, 08:01 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,359
Answer:

What where the codes?

Best guess:

* Bad glow plugs?
* Leaking O rings/fuel lines sucking air?
* Plugged fuel filters/possible Algae in fuel?


Have a great day.
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1980 240D
1983 300D
1984 190D
Reply With Quote
  #3  
Old 01-11-2007, 10:49 PM
Registered User
 
Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
Lacking a new CEL since you cleared them, it sounds like you have a fuel/air leak and are losing your prime.

The CDI's rely on o-ring seals on fuel lines and filter. Check for fuel leaks.

Try parking nose downhill and see if starts easier and/or helps to find the leak.

Posting the codes helps narrow the problem down.
__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
Reply With Quote
  #4  
Old 01-12-2007, 12:38 AM
ForcedInduction
Guest
 
Posts: n/a
Quote:
Originally Posted by gagarin View Post
spaying some easy start into the air pipe and...miracle - it started straight away.
Sounds like a bad crank position sensor.

Same thing happens on our CAT engines at work. They run great but will intermittently refuse to start but have a fast/strong cranking speed and start with even the slightest wiff of ether. We replace the position senors and it works like normal again.
Reply With Quote
  #5  
Old 01-17-2007, 12:57 AM
Registered User
 
Join Date: Jan 2007
Posts: 2
Quote:
Originally Posted by whunter View Post
What where the codes?

Best guess:

* Bad glow plugs?
* Leaking O rings/fuel lines sucking air?
* Plugged fuel filters/possible Algae in fuel?


Have a great day.
Turned to be the o rings in the pressure regulator at the end of the high pressure fuel rail. On starter motor the high pressure pump can not build up enough pressure/ volume to overcome that lossed through leaking o rings. With the engine running on easy start the pump turns over fast enoung to pressurise the fuel rail and injectors. Thanks for the hint m8

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 08:27 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page