Help identifing this part please... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Belairbob · 05-06-2012, 08:48 PM

Can you tell me what this small canister looking item is in the line that runs between
my brake booster and manifold? I believe the previous owner must have installed it.

Thanks for the help!
Bob

**special-K** · 05-06-2012, 09:32 PM

The previous owner must have installed it. I'm scratching my head at what purpose it would serve.

syncrov69 · 05-06-2012, 09:35 PM

Aftermarket one-way valve to replace the stock one-way valve on the booster!

**FirstOwner69** · 05-06-2012, 09:36 PM

Here's a link to a previous thread. It is a filter used on later GM cars and trucks. I think mid-70s until maybe sometime in the 80s.
http://67-72chevytrucks.com/vboard/s...18#post5234918

Belairbob · 05-06-2012, 10:02 PM

Thanks a lot guys!
I'll cut the hose so it fits close to the manifold and
maybe the breather will hide it.
If not I'll ditch it!

Bob

mr48chev · 05-06-2012, 10:03 PM

It's not a filter, It's a vacuum check valve that GM started installing in the mid/late 70's. It lets the booster hold a vacuum a little longer if the engine quits or is shut off.

Warrens69GMC · 05-06-2012, 10:13 PM

Power brake booster filter

http://www.autozone.com/autozone/acc...er=730518_0_0_

**FirstOwner69** · 05-06-2012, 11:51 PM

Another link showing a picture of the GM part and IDing it as a filter..

http://www.rmsautoparts.com/proddetail.php?prod=179-983

05-06-2012, 08:48 PM	#1
Belairbob Registered User Join Date: Jun 2006 Location: NC Posts: 105	Help identifing this part please... Can you tell me what this small canister looking item is in the line that runs between my brake booster and manifold? I believe the previous owner must have installed it. Thanks for the help! Bob Attached Images

05-06-2012, 09:32 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,862	Re: Help identifing this part please... The previous owner must have installed it. I'm scratching my head at what purpose it would serve. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

05-06-2012, 09:35 PM	#3
syncrov69 Registered User Join Date: Aug 2007 Location: Laval, Québec, Canada Posts: 175	Re: Help identifing this part please... Aftermarket one-way valve to replace the stock one-way valve on the booster! __________________ '71 Custom/10 Deluxe LWB '71 Custom/30 Deluxe Dually

05-06-2012, 09:36 PM	#4
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,843	Re: Help identifing this part please... Here's a link to a previous thread. It is a filter used on later GM cars and trucks. I think mid-70s until maybe sometime in the 80s. http://67-72chevytrucks.com/vboard/s...18#post5234918

05-06-2012, 10:02 PM	#5
Belairbob Registered User Join Date: Jun 2006 Location: NC Posts: 105	Re: Help identifing this part please... Thanks a lot guys! I'll cut the hose so it fits close to the manifold and maybe the breather will hide it. If not I'll ditch it! Bob

05-06-2012, 10:03 PM	#6
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,425	Re: Help identifing this part please... It's not a filter, It's a vacuum check valve that GM started installing in the mid/late 70's. It lets the booster hold a vacuum a little longer if the engine quits or is shut off.

05-06-2012, 10:13 PM	#7
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,613	Re: Help identifing this part please... Power brake booster filter http://www.autozone.com/autozone/acc...er=730518_0_0_

05-06-2012, 11:51 PM	#8
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,843	Re: Help identifing this part please... Another link showing a picture of the GM part and IDing it as a filter.. http://www.rmsautoparts.com/proddetail.php?prod=179-983



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