Ok, so I dug up the old thread from 2006, now fifteen years later what are you guys doing to replace this filter, can I still get one? from who? Been looking , no luck so far..thanks

Summit Racing have them. Look for Brake Booster Check Valves. I've got a Raybestos CV89000 - Raybestos PG Plus Professional Grade Power Brake Booster Check Valves

Thank you, but I don't need the check valve I'm looking for the filter..

IIRC, it was only on early cars ... do you mean this?

https://www.dormanproducts.com/p-4019-80195.aspx

Autozone shows them as available but OReilly doesn't, so they may be unobtanium at this point ..shrug..

-- A

84-86 Booster Filter is in Engine Bay on Front wall next to Wire Hardness passthru.
Pull out filter and see if air moves easy. If plugged then bypass w/ metal tube.
Before connected this way....
Disconnect booster check valve, and use compress air to clear the pipe going thru the cabin. A lot of crap can sit there for years, get loose and suck by the engine.

I'm not sure if OE filter can be cleaned. I don't have one to take apart to see how it's made or could clean w/o doing more damage.

⚠️ Why Bypass? After market filters are Plastic cases and have problems next to the exhaust.

87+ doesn't have the filter.
Booster pipe is also Bigger then others and uses booster check valve to fit bigger hose.

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quote Originally posted by dremu: IIRC, it was only on early cars ... do you mean this? https://www.dormanproducts.com/p-4019-80195.aspx Autozone shows them as available but OReilly doesn't, so they may be unobtanium at this point ..shrug.. -- A

Thanks, Don't know yet, haven't gone looking for it yet..

quote Originally posted by hunter29: Thanks, I'll check it out and see.. Why can we make own own... or retrofit something used for another purpose. I have a friend who is a maintenance guy at an auto plant, I'll ask him if he uses anything like this filter.

The filter was eliminated after 1985 so replacing it with a straight tube should be OK.

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