You may also want to remove the Main vacuum line that goes from the Vacuum pump to the break booster. Remove only the end that connects to the vacuum pump. Once the line is removed from the vacuum pump you will see a small orifice that may have gotten blocked, preventing vacuum from reaching your break booster etc. Cleaning this orifice is easy.

I know what I am talking about. I had the same symptoms in one of my previous cars, an '83 300SD. It turned out to be a blocked orifice. Vacuum pump was fine.


Good Luck

Phil

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'95 E300 Diesel, 264,000 Miles. [Sold it]