Intake manifold hose
Thread Starter
Advanced
Joined: Jul 2008
Posts: 52
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From: Vonore Tennessee
Intake manifold hose
No good deed goes unpunished! I had decided to NOT cut corners by cutting a hole in the plastic headwall shroud to access a faulty oil pressure sending unit and instead removed the intake manifold. Everything went fine except for a small rubber vacuum hose that goes between a port under the MAP sensor on the passenger side and a port that actually runs underneath the intake manifold. It is about 6 inches in length, but shaped like a "U". It was very brittle and broke in two pieces. Does anyone know what this is called and where I might find a replacement? I have searched the parts catalogue on the GM Parts Direct website but no luck. The last time I went to the dealer for a specialty hose like this, I waited several weeks for it to arrive and then found that it was the wrong part - this happened twice!
Racer
Joined: Oct 2007
Posts: 263
Likes: 7
From: Brownsville Texas
hose
No good deed goes unpunished! I had decided to NOT cut corners by cutting a hole in the plastic headwall shroud to access a faulty oil pressure sending unit and instead removed the intake manifold. Everything went fine except for a small rubber vacuum hose that goes between a port under the MAP sensor on the passenger side and a port that actually runs underneath the intake manifold. It is about 6 inches in length, but shaped like a "U". It was very brittle and broke in two pieces. Does anyone know what this is called and where I might find a replacement? I have searched the parts catalogue on the GM Parts Direct website but no luck. The last time I went to the dealer for a specialty hose like this, I waited several weeks for it to arrive and then found that it was the wrong part - this happened twice!
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
Make sure when you go to the parts store you get a hose designed for fuel/oil or you will be replacing it again.
or go to the dealer and get the hose, it's part of the PVC system.
Ask for the PCV hose that attaches to the valley cover
or go to the dealer and get the hose, it's part of the PVC system.
Ask for the PCV hose that attaches to the valley cover
Instructor
Joined: Jul 2010
Posts: 146
Likes: 0
From: Thousand Oaks California
No good deed goes unpunished! I had decided to NOT cut corners by cutting a hole in the plastic headwall shroud to access a faulty oil pressure sending unit and instead removed the intake manifold. Everything went fine except for a small rubber vacuum hose that goes between a port under the MAP sensor on the passenger side and a port that actually runs underneath the intake manifold. It is about 6 inches in length, but shaped like a "U". It was very brittle and broke in two pieces. Does anyone know what this is called and where I might find a replacement? I have searched the parts catalogue on the GM Parts Direct website but no luck. The last time I went to the dealer for a specialty hose like this, I waited several weeks for it to arrive and then found that it was the wrong part - this happened twice!
JML
Last edited by Muchtodesign; Feb 4, 2012 at 12:11 PM.
Instructor
Joined: Jul 2010
Posts: 146
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From: Thousand Oaks California
Just wanted to show you the importance of a catch can. The one I own is sold by 'Elite Engineering'. There are other companies out there. Some are better than others. All that oil would have been flowing into my intake, making it's way into through the heads and into the combustion chamber, gumming everything up and helping the build up of carbon.
JML
JML
Thread Starter
Advanced
Joined: Jul 2008
Posts: 52
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From: Vonore Tennessee
Now that you and Haljensen mentioned it, I did notice some oil around the ports when I removed the intake manifold. Does the catch can just sit off to the side? Where is it sold? BTW, yes - that is the exact hose, but now I'm thinking that I should take your advice and install a catch can.
Safety Car
Joined: Feb 2008
Posts: 3,712
Likes: 3
From: TEXOMA
St. Jude Donor '08-'09
i have the CCA catchcan myself. both are premium catch cans.
http://www.customcorvetteaccessories...lcatchcan.html
http://www.customcorvetteaccessories...lcatchcan.html
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Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
Just wanted to show you the importance of a catch can. The one I own is sold by 'Elite Engineering'. There are other companies out there. Some are better than others. All that oil would have been flowing into my intake, making it's way into through the heads and into the combustion chamber, gumming everything up and helping the build up of carbon.
JML
JML
I made two alterations to the same Elite can to improve it.
1. I machined an flanged T-6 extension 2 1/2" long, attached with four equally spaced 4-40 socket head screws onto the filter housing. That essentially extend the distance between the inlet and outlet to 3 1/2" instead of the 1" as is. The extension's side benefit is to provide more surface areas for the oily vapor to condensate.
2. Also increasing efficiency by machined three .125" x .030" deep groves 5/8" apart, onto the ID wall of the bottom reservoir can, to provide three additional means to slow down and disrupt oil creeps up.
