how to check for vacume leak

2007 MERCEDES BENZ C230
103,000 MILES • 2.5L • V6 • AUTOMATIC
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CHARLES PERCY
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Coe test came back po170 - po173 How can I check for a vacume leak
Sep 14, 2014 at 8:59 AM
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MHPAUTOS
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Spray a little carby clean around the manifold gasket and if the revs pic up you have found the leak.
Sep 16, 2014 at 2:50 AM