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 04-07-2001, 02:17 PM
David Mixon
Posts: n/a
The Motor will surge in RPM at idle when in park or drive. It is more noticeable when the car is first started, but it continues after it is at operating temperature.

The timing chain was replaced 10,000 miles ago. The car has approximately 80,000 miles on the motor with no other problems.
Reply With Quote
Old 04-07-2001, 03:16 PM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
I would suspect a problem with the idle control system. The system resets itself if it can't achieve desired idle speed. Look for vacuum leaks and be sure the throttle is fully closing. If there are reasons for a high idle the valve will be commanded closed. It may actually control the speed at times, but at others it won't and when the system resets the speed surges.
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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
1983 380 SEC fuel distributor gedeonbgjr Tech Help 0 05-23-2003 05:24 PM
1983 380 SL stalls when cold Greystone Tech Help 0 05-01-2002 01:27 PM
1983 380 SEC Acceleration problems gordian Tech Help 0 02-12-2002 06:34 PM
Acceleration problems for 1983 380 SEC gordian Performance Paddock 2 02-12-2002 06:32 PM
1983 380 SL fuel injection parts William B. Mercedes Used Parts For Sale & Wanted 0 11-06-2001 10:52 AM

All times are GMT -4. The time now is 08:02 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