The washers are there to help keep the BOV closed @ idle to over come engine vacuum. They also help in adding spring tension to make/help the valve stay closed. I have two washers only installed in my RFL BOV & to date have zero issues. If you were at 1 psi or 10 psi, then lifted off the throttle quickly & the valve opens. The valve is working as it should.
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2004 SRT4 powered by Forward Motion & DCR.  |
