Quote:
Originally Posted by 87tdwagen
Other than physically not working, are there any internal gaskets that could blow in the turbo causing this and not showing any external signs?
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Not that I know of. Shaft seals going out will cause blue smoke out the exhaust, oil consumption and eventually, engine runaway. Other gaskets (if there any) leaking boost would probably make an audible hissing noise.
You could test with soapy water.