Date registered: Aug 2009
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Rough idle / dying after no use
I am sorry if this is a repeat, but I am having trouble searching the forum; I have a 1990 300SE and it normally works very well. The issue is that when the car is not used for 3 - 4 days, the car starts fine, runs fine for 10 minutes or so and then idles very rough - to the point where it will die if I do not keep the RPMs around 1000 in neutral when stopped. The strange thing is that this condition self-corrects after about 30 minutes of use and then the car does will run perfectly - for months - as long as I do not let it sit without use. If I do not use the car for a weekend, it does not have the problem - it must sit from 3 - 4 days for the condition to occur. Thanks for any insight...