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 > Tech Help

LinkBack Thread Tools Display Modes
Old 07-10-2005, 09:53 AM
Registered User
Join Date: Jul 2005
Posts: 5
87 280e Idle Problem

87 260E Auto 180.000 Miles. Idle hunts up and down from about 900-1100 in N and 450-750 in drive. had no choice but to adj the linkage so it could be driven, trying to adjust the fuel mixture has no affect. All new Tune up parts and filters. No vac. leaks. Car starts great Hot or Cold, does seem to have higher than normal Fast Idle, 1400 N but no idle hunt till warm, the warmer it gets the worse the Idle drift.

Have also cleaned ICV, no change.

What do I check next

Reply With Quote
Old 07-10-2005, 10:30 AM
Registered User
Join Date: Jul 2001
Location: SoCal
Posts: 1,303
If idle is stable until low idle, either an air leak you haven't found - perhaps idle air bypass plumbing, airflow meter potentiometer, or OVP relay.

'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
Reply With Quote
Old 07-10-2005, 10:46 AM
Posts: n/a
Sounds on the high side for airflow meter pot, but easy enough to pull off and check. If you see wear on the contact point, that is your culprit. Make sure you mark the position on the airflow meter body to get back in the right position.
Reply With Quote
Old 07-10-2005, 06:28 PM
Registered User
Join Date: Mar 2005
Posts: 24
I had problems with high IDLE and it was the overload relay.
Reply With Quote
Old 07-10-2005, 08:05 PM
Posts: n/a
Remove the pot and compare it to this:
If yours has the spots worn through the substrate as in the picture it need replacing.

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
'83 380 SL fast idle problem Dorbell Tech Help 3 08-23-2004 10:25 PM
450SL idle problem jr811 Mercedes-Benz SL Discussion Forum 12 08-05-2004 11:22 AM
Idle problem - 94E320 HELPPPP RonE320 Tech Help 51 01-03-2004 07:18 AM
1994 E320 Code 6 Idle Problem 300EE320 Tech Help 29 10-14-2003 12:33 PM
Idle problem when headlights on Joreto Tech Help 3 08-18-2002 07:48 AM

All times are GMT -4. The time now is 07:08 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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