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 04-29-2002, 09:25 AM
Registered User
 
Join Date: Apr 2002
Location: boston ,Ma
Posts: 153
rough idle

First of all i want to say thanks to mercedes shop for having such a great forum if it wasnt for u guys i would probably go bankrupt .Here is my problem i would drive the car for about 1 hour let it seat for about 15 mins then i would smell gas then i would try to start it , it would die the first try then go again with a very rough idle i would floor it after about 5 to 10sec i would go and everything would be find
just replace ovp , cat converter, new plugs ,wires. thanks guys
Reply With Quote
  #2  
Old 04-29-2002, 11:20 AM
Registered User
 
Join Date: Nov 2001
Location: Lisbon, Portugal
Posts: 42
Hi!

I have a very similar problem, what is your car?
Does the engine quits?

Folgado
93 S500
Reply With Quote
  #3  
Old 04-29-2002, 02:23 PM
Registered User
 
Join Date: Apr 2002
Location: boston ,Ma
Posts: 153
It's a 1989 300e and yes the engine would quit on me the first try then it would start again but with very rough idle and i could smell gas like i have a leak or something
Reply With Quote
  #4  
Old 04-29-2002, 04:27 PM
J.HIDALGO's Avatar
Registered User
 
Join Date: Jul 1999
Location: Jax, FL
Posts: 1,785
Unhappy May be you DO have a gas leak!

Check the fuel lines and fuel related items under the vehicle. Passenger's side behind a plastic cover. Another thing you can check is the EHA which, is under the air filter assembly. It is a black box attached to the rear of the fuel distributor. Not uncommon to leak. If it is leaking, replace it.
Good luck!
__________________
J.H.
'86 300E
Reply With Quote
  #5  
Old 04-29-2002, 08:39 PM
Registered User
 
Join Date: Apr 2002
Location: boston ,Ma
Posts: 153
well as a result of my rich idle , smell of fuel , rough idle when hot my car as now failed inpection failed the co inspection by a mile
by the way J i did check the eha it s leaking a little bit of fuel pull it out i thought it might be the 2 small o ring that needs to be replaced so i replaced them and tighten it back i do know if that is going to work , as far as failing inspection going to change my o2 sensor this weekend
Reply With Quote
  #6  
Old 04-29-2002, 11:07 PM
J.HIDALGO's Avatar
Registered User
 
Join Date: Jul 1999
Location: Jax, FL
Posts: 1,785
Before you change the O2 sensor...

check in the DIY section. There is a excellent article by Steve Brotherton on evaluating electronic controls. If your EHA is leaking, chances are, it is bad.
Good luck!
__________________
J.H.
'86 300E
Reply With Quote
  #7  
Old 04-29-2002, 11:18 PM
Registered User
 
Join Date: Apr 2002
Location: boston ,Ma
Posts: 153
Ok let's say the EHA is leaking could that be the cause of my rough idling the engine is running rich i try to adjust the idle mixture it is like having no effect on the way the engine is running always running rich which is why i failed inspection
Reply With Quote
  #8  
Old 04-30-2002, 02:18 AM
Registered User
 
Join Date: Jun 1999
Location: Surrey, Beautiful British Columbia, Canada
Posts: 750
you wouldn't want to continue running rich. if so,
you might need another cat.
Reply With Quote
  #9  
Old 04-30-2002, 05:44 AM
Registered User
 
Join Date: Feb 2002
Location: Bulgaria, Sofia
Posts: 584
maximus, I had the same problem with my car it turn out that the O2 sensor was bad. I got a new one and everything was back to normal.


Joreto
190e 2.5-16v
BMW E30 320i
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 08:52 PM.


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