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 04-03-2003, 08:28 PM
Registered User
Join Date: Aug 2002
Location: SAVANNAH GA.
Posts: 117
idle speed fast

1991 300e,drove home from work today,noticed my idle was @1200-1500 RPM.Found EHA to be leaking.Could this cause this problem?Disconnected plug from what I believe to be the idle control valve(bosch part no.0 280 140 150) and idle returned to normal.Reconnected plug,idle still normal.Turned off ignition,restarted engine,idle speed slowly went to1500 RPM.Swapped valve from another car ...same results. Measured voltage across plug appears to be 4.5 volts.Any clues as to where this valve gets its signal voltage???? Any tests to trouble shoot this problem would be greatly appreciated!
Reply With Quote
Old 04-07-2003, 12:16 AM
Registered User
Join Date: Dec 2001
Posts: 571
Good info in more than one of these posts:
Reply With Quote
Old 04-07-2003, 10:39 PM
Registered User
Join Date: Aug 2002
Location: SAVANNAH GA.
Posts: 117
Smile idle speed high

Mike,thanks for the info.I really appreciate it.Since my post ,I have cleaned all electrical connectors with electrowash.I have had normal idle since! I also must mention that I washed my engine a couple of days before this incident.I do this at least once a year to keep things tidy.I have never had any problems in the past.Iusually run the car for 45 minutes to dry things out , but I believe I may have only run it for 15 minutes this time. Any thoughts about using electrolitic grease on the connectors as some other manufacturers do? THANKS,DAN
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

All times are GMT -4. The time now is 01:38 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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