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-   -   Frequency Valve Test (http://forums.pelicanparts.com/porsche-911-technical-forum/1040588-frequency-valve-test.html)

TracyC 09-20-2019 11:03 AM
Frequency Valve Test
 
Is there a simple test to check the operation of a frequency valve on a 1980 911SC. I cant feel any vibration when the engine is running. Can it be checked with the engine off. Thanks for any and all help.

T77911S 09-20-2019 11:31 AM
check fuse 18.
I am surprised it runs.
FV's very rarely go bad, in fact I don't think I have heard of a bad one,


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