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All Air Vents 99.9% Blocked 960 S90-V90

uid 11021's pic
posted by  dewfpo on  Sat May 15 05:14 CST 2004
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last visit: Thu Oct 23 18:34 CST 2014
[RELATED]

Start checking for vacuum leaks from the engine to the firewall, firewall to the reservoir (looks like 4 black plastic balls) mounted inside the car on the firewall, then check for leaks to the electronic control valve, then start pinching off the colored vacuum lines with a pair of pliers while the engine is running and see if you can get the various vents to move. You may have a serious vacuum leak. The vacuum bellows on these cars are notorious for going out. I have 2 bad ones on our 95. Their tough to R&R so I have pinched off the lines so that I have the vents operating all the time.

To gain access to the reservoir and the control valve manifold. Take out the glovebox and the passengers side underdash trim panel. Both very easy.

DEWFPO
--
1998 S90 068,300 and 1995 964 152,300






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