PCV Valve Recommendation / Housing Modification

**Lt1le3** · 12-27-2013, 04:22 PM

What is the part number for the brass fitting? I know it's a 3/4 but what's the other end size

**Decadence75** · 12-27-2013, 09:32 PM

If you mean the barbed end, I am pretty sure that it would be 3/8" as that should be the size hosing that you use to build a better PCV system with. This will replace the built in PCV for the factory hose but I went one step further and replaced the entire system and added a catch can for more security. Here is how I did it. Rebirth of the PCV system | 2000 Trans Am Blog

**Questioner** · 06-20-2014, 10:52 PM

Originally Posted by jodmari

Would this problem give me fumes inside the cabin?

before i realized the person before me destroyed all the hose connections for the pcv and map sensor and hvac control hose...i had severe fumes in the car. i think it was due to the hvac control sucking vapors idk for sure but i did the entire pcv with hose a new pcv valve, catch can and rigged my hoses all back together now my engine runs more smoothly and i have ac blowing out the front vents now lol as well no more fumes. i pulled the manifold off replaced the intake gaskets while i was at it 20 bucks.

**kobe8** · 02-10-2016, 07:58 PM

I know this is an old thread, but I just noticed that my PCV housing is completely cracked. Does anyone have the original pictures or a link to what I need to buy? I already have a replacement valve and some 3/8" hose and clamps. I'm not exactly sure how to connect the larger end of the valve. Thanks.

**Cutlass** · 02-11-2016, 02:07 AM

Sounds like he used 1/2" hose and a brass coupling between the 1/2" and 3/8" hoses

**Questioner** · 02-12-2016, 08:55 AM

Originally Posted by Cutlass

Sounds like he used 1/2" hose and a brass coupling between the 1/2" and 3/8" hoses

yes shove the 3/8 into the 1/2 in hose and clamp it to secure it like this: take end of 3/8 hose and insert it into the 1/2 in hose for it to be able to connect using a hose clamp. take the fat end of the "PCV Valve" and stick it into the 1/2 hose ( tight fit) you will be able to get about a 1/4 in depth into it. clamp the hose again to the valve. then stick the 3/8 in hose to the small end and clamp it to the PCV Valve. pretty much you are replacing the valve boot with the 1/2 hose and connecting it together via the hoses and clamps. very simple.

**Questioner** · 02-12-2016, 08:57 AM

Originally Posted by Questioner

yes shove the 3/8 into the 1/2 in hose and clamp it to secure it like this: take end of 3/8 hose and insert it into the 1/2 in hose for it to be able to connect using a hose clamp. take the fat end of the "PCV Valve" and stick it into the 1/2 hose ( tight fit) you will be able to get about a 1/4 in depth into it. clamp the hose again to the valve. then stick the 3/8 in hose to the small end and clamp it to the PCV Valve. pretty much you are replacing the valve boot with the 1/2 hose and connecting it together via the hoses and clamps. very simple.

i used "various" ......various basic plastic fittings from auto zone had the car for about 2 years no issues. (knock on wood)