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Help Name This Hose...?

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Old Sep 26, 2011 | 04:45 PM
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From: Orange Tx
Default Help Name This Hose...?

Its the little bitty line that connects to back of intake manifold.

It seems to be really too short to connect back when putting intake back on?

Any way to make it longer if possible?

Or whats it called to order new one an hope its longer...?

Thanks
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Old Sep 26, 2011 | 04:52 PM
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It's for the HVAC doors. It should be plenty long enough. Make sure you didn't leave a piece sticking on the back of the manifold.
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Old Sep 26, 2011 | 05:11 PM
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Originally Posted by Lothar34
It's for the HVAC doors. It should be plenty long enough. Make sure you didn't leave a piece sticking on the back of the manifold.
Specifically, it's the vacuum source provided to the reservoir, and is in turn, used by the A/C (and AIR pump depending on the year)......and no, the hose is not long enough, which leads to it being snapped off during an intake manifold removal. Extending the length with a union and piece of vacuum hose, will make installing the manifold much easier, and ease removal in the future.
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Old Sep 26, 2011 | 08:51 PM
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Mine with 194,000 miles was long enough and wasn't brittle.
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Old Sep 26, 2011 | 08:58 PM
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Originally Posted by Lothar34
Mine with 194,000 miles was long enough and wasn't brittle.
I guess I must be completely mistaken...
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Old Sep 26, 2011 | 10:24 PM
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Thanks guys.. Yall always answer my questions..

So any parts store?
What size union an hose do i ask for...?
1/16 1/8....? all i know is its tiny...
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Old Sep 26, 2011 | 11:17 PM
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Originally Posted by lucky131969
I guess I must be completely mistaken...
His looks like it's missing something. Mine has a smaller piece sticking out of where his ends.
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Old Sep 27, 2011 | 06:48 AM
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Originally Posted by Lothar34
His looks like it's missing something. Mine has a smaller piece sticking out of where his ends.
So is there a longer piece that im missing?

Anyway i can just add to what i got to make up for what im missing?

An if so what material do i use?
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Old Sep 27, 2011 | 01:05 PM
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Originally Posted by kris6868
Thanks guys.. Yall always answer my questions..

So any parts store?
What size union an hose do i ask for...?
1/16 1/8....? all i know is its tiny...
3/16... You want the same size extender.

Originally Posted by kris6868
So is there a longer piece that im missing?

Anyway i can just add to what i got to make up for what im missing?

An if so what material do i use?
Check the back of the manifold. There should be a small elbow there that the line connects to... This thread may help you: http://forums.corvetteforum.com/c5-g...with-pics.html

Lucky is right (as usual) about needing to extend this. GM built precisely ZERO slack into this line and it's very easy to break when removing the intake. The line used from the factory is a bit brittle to start with; it's not the flexible rubber line you'll probably add onto it. The poster above that said his was fine probably had his line extended by a previous owner as this is a very common mod for anyone who removes the intake...

Last edited by cdkcorvette7; Sep 27, 2011 at 01:07 PM.
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Old Sep 27, 2011 | 01:22 PM
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Go to ADVANCE Auto, NAPA or AutoZone and one of them will have a NYLON VACUUM LINE repair Kit. It comes with line and sleeves.

Heres what I did to lengthen mine to make fitment easier when you reinstall the manifold. NOTE! NONE OF THEM form the factory is ever long enough to malke the job easy of effective. Ive seen GM Technicians have to remove and reinstall that manifold 3-4 times JUST to make that damn hose stay on correctly. just lengthen it and be done with it!

Your also missing the 90 Deg rubber fitting, unless its still on the back of the MAP Sensor fitting







Oh,, That hose ends up in the passengers fender well here:


Last edited by Bill Curlee; Sep 27, 2011 at 01:28 PM.
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Old Sep 27, 2011 | 02:59 PM
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Wow great help.
Truly appreciate everyone.

Yes sir I got the 90. Everything is still connected to back of intake.
Thanks for going into detail where this line runs. I was curious about that.

Im glad to here im not the only one with this issue.

Thanks guys
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