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Tx Firefighter · 06-19-2011, 08:20 PM

That's not a filter, it's a check valve to hold vacuum in the booster when the engine's vacuum signal falls too low for any reason.

06-19-2011, 08:20 PM	#10
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Brake Booster vacuum hose Location That's not a filter, it's a check valve to hold vacuum in the booster when the engine's vacuum signal falls too low for any reason. __________________ I'm on the Instagram- @Gearhead_Kevin