General Tech Post general Mercedes Tech questions here.

1990 300 SEL Rough idle then all good

Thread Tools
 
Search this Thread
 
  #1  
Old 09-27-2007, 11:46 AM
RonnieB's Avatar
Thread Starter
Join Date: Sep 2007
Posts: 3
Default 1990 300 SEL Rough idle then all good

All of the sudden when I went to start my car, it was very hard starting, then once started, it would run very rough and my ABS light would go on. Then after warming up, the light would go out and it would run like a top. It does not do this everytime, just whenever it feels like it. I had a look at it and he replaced 2 different sensors, one that was bad and one that was related to the cold start injector. It still has the same problems. This car has about 140000 miles, and has had excellent care and maintenance!

Please help, any input would be great! Thanks in advance, Ron
 
  #2  
Old 09-27-2007, 08:34 PM
Join Date: Feb 2005
Location:
Posts: 130
Default RE: 1990 300 SEL Rough idle then all good

You need an overload protection relay, it's the relay with the red top and the ten amp fuse in it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
qforty5
Mercedes E Class
0
10-20-2009 05:37 AM
bluesky 2008
General Tech
1
04-28-2008 02:00 PM
BCinPhx
Mercedes SL Class
4
10-23-2007 10:44 AM
smokymcgee
Mercedes C Class
0
03-20-2006 01:52 PM
ddjac
General Tech
4
03-09-2005 06:13 AM



Quick Reply: 1990 300 SEL Rough idle then all good



All times are GMT -5. The time now is 01:57 AM.