How do i find a discontinued part (#9463042) vacuum bellows
1994 Volvo 940

How do I find a discontinued part (#9463042) vacuum bellows

(1994 Volvo 940)
My 940 wagon is almost perfect... except for one discontinued part I need. The vacuum bellows apparently helps channel the air from the AC. When I accelerate, the air no longer comes out of the dash outlets. But when I take my foot off the pedal, the air blows out of the dash vents. Having the air coming from the dash outlets is necessary in summer driving weather. I have scoured the net, and cannot find a new or used version of this part. Help!
What seems to make the problem better or worse? Foot on the gas determines where AC air is channeled.
Tags: need a discontinued vacu, volvo, 940
1 answer & 2 comments
Popular Answer
on July 21, 2018
Unless you can actually see the rubber diaphragm is damaged .. Check for a vacuum leak under hood that is supplying the HVAC system.
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on July 21, 2018

Note : Lower engine rpms produces ‘more’ engine vacuum - accelerating (higher rpms) ‘diminishes’ engine vacuum .. A leak anywhere in the vacuum supply circuit will cause the same problem.
on July 21, 2018

Ow ‘IF’ you need the vacuum control diaphragm - try eBay.. IF not available there - GOOD LUCK!
Vacuum Leak Diagnosis
$88 - $111 Learn More
on July 21, 2018
Unless you can actually see the rubber diaphragm is damaged .. Check for a vacuum leak under hood that is supplying the HVAC system.
Sign in to reply
on July 21, 2018

Note : Lower engine rpms produces ‘more’ engine vacuum - accelerating (higher rpms) ‘diminishes’ engine vacuum .. A leak anywhere in the vacuum supply circuit will cause the same problem.
on July 21, 2018

Ow ‘IF’ you need the vacuum control diaphragm - try eBay.. IF not available there - GOOD LUCK!

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