Larry makes a good point.... finding a cure for rough idle can be an expensive journey.

Sometimes you can go broke trying to save yourself money as a DIYer. After searching the forum and performing a few inexpensive attempts to resolve your problem, if the solution doesn't become obvious - turn the job over the professionals.

Find a Good mechanic and save some money and worry.

I'm a computer network engineer who has spent $$$$ trying to save money.

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Russell McMahon
Tulsa, OK
2001 CLK 320
1992 400se
1993 400e
2000 320ML