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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-02-2003, 04:24 PM
Achieving Salvation
 
Join Date: Sep 2002
Location: Madison, Wis.
Posts: 223
I'm chuggin' again!!

'93 190e 2.6, 81k

Hello friends:

My infamous chugging problem has re-developed again, and I'm not sure what the culprit is this time!!

This happens when I have driven for awhile, turn off the engine, come back and re-start. Cold starts are always fine - engine picks up and has lots of power. When it's warm however, it kind of shakes and sometime comes close to dying out, but never does. Acceleration is sluggish for the first 5 minutes or so, then is fine. Valve stem seals were replaced last year and that seemed to help a lot, but now it's back again.

Any other suggestions?

Thanks friends!

Take care-
Michael.

Last edited by AuctorEcclesiae; 04-02-2003 at 06:11 PM.
Reply With Quote
  #2  
Old 04-02-2003, 06:11 PM
Achieving Salvation
 
Join Date: Sep 2002
Location: Madison, Wis.
Posts: 223
ttt
Reply With Quote
  #3  
Old 04-03-2003, 08:17 AM
LarryBible
Guest
 
Posts: n/a
I thought from the title of the thread that you had "fallen off the wagon" and you're drinking again.

Does the check engine light come on? If not when you turn on the key before starting the engine does the check engine light come on? This checks the light bulb.

Also, if this is a California car, the error codes and the method of retrieving them is different from a Federal car.

Good luck,
Reply With Quote
  #4  
Old 04-03-2003, 10:13 AM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
have you checked your throttle switch? It's found at the engine end of the throttle linkage. I've posted these steps many times to test the switch is working, but only to people with the 4-cylinder engine.

Your 6-cylinder is very similar (same bore/stroke but 2 extra cylinders). Give it a try

Drive at 30mph in '3', with foot off the throttle. Change autobox down to '2'. If it jolts down into 2nd instantly, your switch is OK in the no-throttle positition.

Now do the same thing, with just a very small amount of throttle applied (enough to unclick the switch). If the gearbox slips and generally dosent instantly jolt down, the switch is working fine.

Quite why the throttle switch connects to the gearbox as well as the ECU I haven't found out yet, but when off the throttle and coasting its designed to cut off fuel supply to the engine (better economy). If it's not working your car may chug. When cold, the fact that it's not working may not matter so much as the engine richens itself when cold, supplying extra fuel.


Let us know what you get..!

Russ
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #5  
Old 04-05-2003, 12:24 PM
Achieving Salvation
 
Join Date: Sep 2002
Location: Madison, Wis.
Posts: 223
Hi guys:

Thanks much for your posts! I tried the idea with the throttle linkage, and I got results as I should, so I guess that's OK. No check engine lights or anything. It runs great after chugging for 2-4 minutes. But it only does it when it's warm - when it's cold, it fires right up - idle is good and I have no problems.

Unfortunately, I've got bigger fish to fry with my transmission & exhaust right now, so I guess it will have to chug for awhile!

Thanks for all the help.

Take care-
Michael.
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 07:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, 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