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'whistle' from central air vents and other noises 200

uid 46171's pic
posted by  kittysgreyvolvo on  Sat Jan 27 16:18 CST 2024
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last visit: Sat Oct 18 15:23 CST 2014
[RELATED]

The grommet on the vacuum chamber on the brake thing that the only and big vacuum hose connects to shrinks and so whistles as you accelerate. Twist the plastic barbed connector

https://www.ipdusa.com/products/5117/Brake-Booster-Check-Valve-Genuine-Volvo-0204120018-270596

FCP is cheaper with replacement warranty. If in teh states, use Tasca Volvo for OEM.

Else, inspect the vent vacuum controls. Your 1981 may have the horizontal wheels to adjust vents and such. Not trhe three square buttonz as is in us 240 forever.


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