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What is this hose for?

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Old 06-20-2012, 08:35 PM
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Default What is this hose for?

What is this hose for/to?..

Its ripped completely off from the intake manifold, is it easy to replace? it seems to run completely back behind my intake manifold.

Part numbers or something?
I attached a pic.. sorry its not the best.
Attached Thumbnails What is this hose for?-imag0910.jpg  

Last edited by 777Shock777; 06-20-2012 at 09:21 PM.
Old 06-20-2012, 09:26 PM
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thats a PCV hose ,you now have a vacuum leak.you can use some rubber hose of the same dia. or order a new 1 from the auto store or gm.
Old 06-20-2012, 10:51 PM
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I'd trace the lines all the way back to the top of the two valve covers. The plastic parts should be fine, but there are rubber junctions joining the sections which are likely to also be failing or near to much like the one pictured. You can also replace the PCV valve while you're in there (located near the rip inside that fat section of hose). They're cheap and good protection from oil getting sucked into the engine.
Old 06-21-2012, 12:26 PM
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I was looking through on rock auto and ac delco's site and could only find the PCV Valve, and PCV Valve Connector.

They were only like 5 bucks together so I'll order a new set of those. The only problem is I can't seem to find the hose for it... Would I just need to go into a stealership?? or anyone else know where I can get one?
Old 06-21-2012, 01:46 PM
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http://www.ebay.com/itm/99-02-LS1-Ca...r#ht_777wt_680

This might be what I'm looking for...
Old 06-22-2012, 01:24 AM
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You should be able to piece together all the parts you need from an autoparts store for a lot less than that. It won't be OEM, but it works. If you pull the PCV circuit from your car it looks exactly like what is in that eBay ad. You can then see which rubber parts are worn or soft.
Old 06-26-2012, 08:52 AM
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Here's a photo from Ls1howto that helped me:

Old 06-26-2012, 07:54 PM
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Does anyone know why the pcv hose has a ground on it?
Old 06-26-2012, 09:45 PM
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Originally Posted by MFCptnMorgan
Does anyone know why the pcv hose has a ground on it?
Its not a ground. Its a heat sink to transfer heat to the PCV valve so condensation doesn't form from hot engine gasses hitting a cold PCV valve.
Old 06-27-2012, 03:32 AM
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I actually ended up ordering a PCV Catch can from WS6store.. I'll take some pics after the install for sure, but I figured try and fix the oil eating problem as much as I can!!
Old 06-27-2012, 02:24 PM
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If the front looks likes that, more than likely the back of the PCV system that rests on the OPSU looks the same. That is why you see oil pooling under the TB. Just did the same thing to mine while pulling the intake off to clean up all the oil that was gumed up under the intake and leaking from the OPSU that was brittle and cracked.
Old 06-27-2012, 06:01 PM
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Originally Posted by 777Shock777
I actually ended up ordering a PCV Catch can from WS6store.. I'll take some pics after the install for sure, but I figured try and fix the oil eating problem as much as I can!!
The logic of these things has never added up for me...

The car burns 1 qt of oil every 3000 miles. This still won't drop the oil level below the fill line - but if this burning oil is indeed a "problem" and the can works as advertised, all of that oil should end up in the catch can, right? Then what???

One would need to empty the catch can every 500 miles to drain the oil back in to the crank case as the can fills up. (Otherwise it would overflow and the excess oil would go back in to the intake and get burnt up.)

If the can doesn't fill up that fast, then its not catching the majority of the burning oil. If it does fill up that fast, then its created a lot of extra maintenance and work for the owner. Or, am I missing something?
Old 06-28-2012, 09:57 PM
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Originally Posted by 00 T/A Ron Burgondy
If the front looks likes that, more than likely the back of the PCV system that rests on the OPSU looks the same. That is why you see oil pooling under the TB. Just did the same thing to mine while pulling the intake off to clean up all the oil that was gumed up under the intake and leaking from the OPSU that was brittle and cracked.
Yeah I just pulled the PCV off and wow its DIRTY... I'll upload a pic

Originally Posted by wssix99
The logic of these things has never added up for me...

The car burns 1 qt of oil every 3000 miles. This still won't drop the oil level below the fill line - but if this burning oil is indeed a "problem" and the can works as advertised, all of that oil should end up in the catch can, right? Then what???

One would need to empty the catch can every 500 miles to drain the oil back in to the crank case as the can fills up. (Otherwise it would overflow and the excess oil would go back in to the intake and get burnt up.)

If the can doesn't fill up that fast, then its not catching the majority of the burning oil. If it does fill up that fast, then its created a lot of extra maintenance and work for the owner. Or, am I missing something?
I've heard of it fixing a lot of peoples problems, so I figured why not! Mine actually had A TON of oil residue on the throttle body and intake when I first bought it.

But yeah your reasoning does make sense tho
Old 06-28-2012, 10:00 PM
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IF anyone thinks oil doesn't get through... here you go..





I know GM released a newer style PCV valve. Should I just buy one of those or use this one?
Old 06-29-2012, 07:53 AM
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Originally Posted by 777Shock777
IF anyone thinks oil doesn't get through... here you go..





I know GM released a newer style PCV valve. Should I just buy one of those or use this one?
Looks like every other PCV valve I've had on any car.

GM's TSB was very clear that the orifice PCV (the other design) should only be used on engines that burn more than 1 qt. every 3000 miles. If it performed (emissions and otherwise) as well as the stock design, I'd expect that they would put it on every car.
Old 06-29-2012, 09:05 AM
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Originally Posted by wssix99
Looks like every other PCV valve I've had on any car.

GM's TSB was very clear that the orifice PCV (the other design) should only be used on engines that burn more than 1 qt. every 3000 miles. If it performed (emissions and otherwise) as well as the stock design, I'd expect that they would put it on every car.
Don't waste your time with this. I've tried to explain it numerous times. lol They seem to just want something that "looks cool" lmao
Old 06-29-2012, 04:12 PM
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Originally Posted by LS1121
Don't waste your time with this. I've tried to explain it numerous times. lol They seem to just want something that "looks cool" lmao
Oh. Does the fixed orifice PCV look cool? Maybe I'm not keeping up with my pop culture closely enough.
Old 06-29-2012, 06:09 PM
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Originally Posted by wssix99
Oh. Does the fixed orifice PCV look cool? Maybe I'm not keeping up with my pop culture closely enough.
No.........I referring to that stupid f_____ catch can.
Old 06-29-2012, 08:26 PM
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Originally Posted by wssix99
Looks like every other PCV valve I've had on any car.

GM's TSB was very clear that the orifice PCV (the other design) should only be used on engines that burn more than 1 qt. every 3000 miles. If it performed (emissions and otherwise) as well as the stock design, I'd expect that they would put it on every car.
Thanks for the info!

Originally Posted by LS1121
No.........I referring to that stupid f_____ catch can.
Well, I'm not looking for looks, mainly just something to help out with the oil. Especially since, like above my hose ripped and it created a vacuum leak. :o
Old 06-30-2012, 05:15 PM
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Originally Posted by LS1121
No.........I referring to that stupid f_____ catch can.
Good god why do all your posts fail so hard?
Whats so bad about someone wanting to stop oil from getting in the intake, which decreases power and potentially can cause pinging?


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