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> Volvo 780 Turbo, Volvo hissing like theres a vacuum leak somewhere!
tobias
post Nov 26 2013, 12:30 PM
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Drives: 1989 Volvo 780 turbo



Tobias here, got a volvo 780 that has some turbo problems. When the turbo engages it hisses like there's a vacuum leak. Then a few days ago it started to whine. Am I looking at a new turbo or its it something else?
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danielm85948
post Nov 26 2013, 06:09 PM
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QUOTE (tobias @ Nov 26 2013, 12:30 PM)
Tobias here, got a volvo 780 that has some turbo problems. When the turbo engages it hisses like there's a vacuum leak. Then a few days ago it started to whine. Am I looking at a new turbo or its it something else?

look at your turbo bypass valve for pin holes or splits.and check the hoses from your turbo may have holes under them.
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