We've had some epic Threads on Vacuum Leaks. All I concluded was that a single tool may never find the leak(s). So I have a Smoke Machine, a Propane wand, Carb Cleaner aerosol and use them all.
Some times just disconnecting+plugging small suspect sections is the best technique.
Some very talented guys here have spent many frustrating hours tracking vacuum leaks.Only a few gave a detailed,helpful confessional. I guess because when you find the leak it seems so simple?
You need to be absolutely logical and methodical and use the Vacuum diagram.
By far the best Thread I recall was Jamesp.Try Search?
Good Luck
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