94 C280 Vacuum Problem? - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 09-28-2009, 10:59 AM Thread Starter
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Date registered: Sep 2009
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94 C280 Vacuum Problem?

The RPMs on my 94 C280 are jumping at idle. That feels like a vacuum problem to me. Is there an easy way to try and diagnose this? Is there a common hose that could have gone bad that I can check? Any help is appreciated.
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