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Thread: Hose on top of intake?
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10-15-2014, 06:13 AM #1
- Join Date
- Oct 2014
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- United States
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red- 2000 WS6
Hose on top of intake?
I just bought my first LS1 car last night. A 2000 WS6 Auto and I love it so far. It was pouring down rain when I looked at it so I missed some imperfections here and there but she still looks good. I looked under the hood this morning just to get a better idea whats going on in there and I saw a hose that goes right behind the throttle body, in the very front of the intake. It has been cut and clamped shut. The car has full long tube headers so I was thinking this might be EGR since it is also wrapped in heat wrap. What is it and should I be concerned?
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10-15-2014, 06:19 AM #2
- Join Date
- Jan 2010
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- East of Cleveland, Ohio
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- 3,827
Black- 99 WS.6 - Modified
Sounds like an EGR delete. There is a delete plate you can buy to remove the clamped hose setup you have. Looks much better. No need to worry about it though.
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10-15-2014, 07:21 AM #3
Welcome to the site!
Is your check engine light on? If not, the tune has probably been altered to remove the light command from error reporting on the EGR system.
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10-15-2014, 08:20 AM #4
- Join Date
- May 2013
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- Nashville, TN
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- 1,434
Black / White- '00 T/A M6/'19 Hemi Truck
sounds like a half a$$ed EGR delete...I would recommend doing what Walt said and getting the actual block off plate because that input on the top of the LS1 intake is pretty notorious for having vacuum leaks so you want to make sure its sealed correctly. Hawks Third Gen sells the block off plates along with quite a few others...WS6 store should have them as well.
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10-17-2014, 06:04 PM #5
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- Oct 2014
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- United States
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- 44
red- 2000 WS6
Thanks guys that's what I thought. Ill get that plate ordered
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10-18-2014, 10:14 AM #6
Welcome to the site.
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10-19-2014, 07:48 PM #7
- Join Date
- Jan 2006
- Location
- Jamestown, NC
- Posts
- 355
Red- 99 Z28
I have the setup from speed Inc which is really nice. And yes it does sound like egr delete. Do the longtubes have provisions for EGR?
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10-26-2014, 11:58 PM #8
- Join Date
- Aug 2005
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- THE SWAMP
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- 1,446
Light Pewter Metallic- 2000 Camaro SS M6
Although it looks like crap, as long as that cut EGR tube is sealed well, you should be fine. However, getting the proper block-off plate is best for the long-run.
Welcome to the site and to LS1 ownership. May both serve you well.
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10-27-2014, 07:25 AM #9
- Join Date
- May 2013
- Location
- Nashville, TN
- Posts
- 1,434
Black / White- '00 T/A M6/'19 Hemi Truck
Usually the issue with that tube is the gasket at the bottom of it tends to warp and the tube itself doesnt always sit flush in the intake. The plates seem to fit a little more snug for some weird reason...could be a larger diameter on purpose for that exact reason maybe? I've never looked at measurements of the plates so I wouldnt know if thats the case but it would make sense
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10-28-2014, 03:46 AM #10
When I removed my EGR tube from on top of the intake, I went to the local auto parts store and got a rubber plug that is actually designed to be a freeze plug. You don't even have to remove the throttle body. Just bolt it in. It's been in there for well over 10 plus years and no issues. Ive have done this also on other cars after removing the EGR system. It's a clean install and gets the stock EGR tubing completely out of the car.
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10-28-2014, 06:49 AM #11
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