C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Oil thread! Check your intake!

Thread Tools
 
Search this Thread
 
Old Aug 21, 2014 | 09:46 AM
  #1  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default Oil thread! Check your intake!

Z51 seems more likely but I have read about base car's too!

You may have oil in your intake and not know it.

You find it when you remove your plastic intake infront of the throttle
body. Then flip it over and it is a nice place to carry oil! That will get back in the engine!

Please spare us the "overfill message's" As my car still does with being down a full quart !

I know of 6 or more cars doing it! From other posts and threads!

We have an issue of oil coming back in the intake from the PVC lines!
Guys adding catch cans instead of going to the dealer to get it solved!

If you have burped oil in in the intake post it here! Check your pipes for heavy soot!
Then check you intake!

Last edited by 3 Z06ZR1; Aug 21, 2014 at 09:56 AM.
Reply
Old Aug 21, 2014 | 09:48 AM
  #2  
Glen e's Avatar
Glen e
Race Director
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Sep 2013
Posts: 11,825
Likes: 2,476
From: Ft Lauderdale
Tech Contributor
Default

Show me a link where this is happening on a base car.....
Reply
Old Aug 21, 2014 | 09:53 AM
  #3  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by Glen e
Show me a link where this is happening on a base car.....
I just read it a day or so ago ! If you start reading you will find it!

It is true! You may have it! You have to pull the intake infront of the throttle body to see. Otherwise you don't know it!
Reply
Old Aug 21, 2014 | 10:06 AM
  #4  
Steve_R's Avatar
Steve_R
Team Owner
Supporting Lifetime
10 Year Member
Veteran: Navy
 
Joined: Mar 2012
Posts: 49,286
Likes: 3,916
From: Best Island in the U.S.
St. Jude Donor '12 thru '17
Default

Need more exclamation marks.
Reply
Old Aug 21, 2014 | 10:12 AM
  #5  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by Steve_R
Need more exclamation marks.
Your right! I do! Till some one solves this! Have you checked you intake?
Reply
Old Aug 21, 2014 | 10:14 AM
  #6  
KenHorse's Avatar
KenHorse
Team Owner
 
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Default

About to pull my catch can reservoir today (leaving on the NCC tomorrow) and will probably drain out half a cup or so.

(BTW, the PCV system may use PVC material )
Reply
Old Aug 21, 2014 | 10:15 AM
  #7  
Stan0324's Avatar
Stan0324
Drifting
Veteran: Air Force
15 Year Member
Liked
Community Favorite
 
Joined: Apr 2011
Posts: 1,755
Likes: 198
From: Southington CT
Default

This topic has come up many times. Read the other posts to see what most are saying and doing. Look for Catch Cans....
Reply
Old Aug 21, 2014 | 10:17 AM
  #8  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by Glen e
Show me a link where this is happening on a base car.....
Forgot about this? It looks like your own post (number 9) Says you have oil in your own base car intake! http://forums.corvetteforum.com/c7-g...catch-can.html
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Aug 21, 2014 | 10:18 AM
  #9  
Steve_R's Avatar
Steve_R
Team Owner
Supporting Lifetime
10 Year Member
Veteran: Navy
 
Joined: Mar 2012
Posts: 49,286
Likes: 3,916
From: Best Island in the U.S.
St. Jude Donor '12 thru '17
Default

Originally Posted by Rock'n Blue 08
Your right! I do! Till some one solves this! Have you checked you intake?
Nope, haven't checked mine. Not going to as I'm not worried about it. Oil has been going into intake manifolds for decades through the PCV system.
Reply
Old Aug 21, 2014 | 10:28 AM
  #10  
Glen e's Avatar
Glen e
Race Director
10 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Sep 2013
Posts: 11,825
Likes: 2,476
From: Ft Lauderdale
Tech Contributor
Default

Originally Posted by Rock'n Blue 08
Forgot about this? It looks like your own post (number 9) Says you have oil in your own base car intake! http://forums.corvetteforum.com/c7-g...catch-can.html

It does not say that at all, you really don't have a clue.....
Reply
Old Aug 21, 2014 | 10:33 AM
  #11  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by Glen e
It does not say that at all, you really don't have a clue.....
http://forums.corvetteforum.com/c7-g...catch-can.html

So you didn't post what I'm reading Here in post number 9 where you say you put a catch can on and were gettin oil in the can. That otherwise goes into the intake?



So what did you post then! You look wrong here!
Reply
Old Aug 21, 2014 | 10:34 AM
  #12  
Jbrown333's Avatar
Jbrown333
Advanced
10 Year Member
 
Joined: May 2014
Posts: 53
Likes: 39
From: Orlando
Default

So this was happening on my Z51 and I have taken it to the dealer twice. First time they told me to take it easy and let the engine break in more. It had 2500 miles on it. So I took it easy for another 500 miles and then found a good 1/2 cup of oil on my garage floor and my intake was again soaked and filter as well. they took it in and contacted GM again. the oil was changed and they replaced the PCV valve. Now have another 500 mi and am not seeing any oil in the intake. is this the answer? i am not sure. But I hope so. Very upset to see this happening on what is a great car. this is my first Vette and my first GM product in a very long time. they are not making a good impression with me.
Reply
Old Aug 21, 2014 | 10:38 AM
  #13  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by Jbrown333
So this was happening on my Z51 and I have taken it to the dealer twice. First time they told me to take it easy and let the engine break in more. It had 2500 miles on it. So I took it easy for another 500 miles and then found a good 1/2 cup of oil on my garage floor and my intake was again soaked and filter as well. they took it in and contacted GM again. the oil was changed and they replaced the PCV valve. Now have another 500 mi and am not seeing any oil in the intake. is this the answer? i am not sure. But I hope so. Very upset to see this happening on what is a great car. this is my first Vette and my first GM product in a very long time. they are not making a good impression with me.
Your not alone! Mine pukes bad and so do plenty more!

Thanks for posting! GM needs to respond! Im following your lead and trying new New PVC valves

Last edited by 3 Z06ZR1; Aug 21, 2014 at 10:41 AM.
Reply
Old Aug 21, 2014 | 10:40 AM
  #14  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by Glen e
It does not say that at all, you really don't have a clue.....
Look there is problem already people are chiming in! Don't like the topic STAY OUT please!
Reply
Old Aug 21, 2014 | 10:49 AM
  #15  
bob guzzy's Avatar
bob guzzy
Safety Car
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2006
Posts: 3,940
Likes: 43
From: shavertown Pa.
Default

All of the LS engines did it why shouldn't this one, it has the same PCV system and the system will catch oil mist and drag it up into the intake.

I wasn't worried when I saw it on my zo6 in 2002 and again on my silverado in 2008.
Reply
Old Aug 21, 2014 | 10:52 AM
  #16  
KenHorse's Avatar
KenHorse
Team Owner
 
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Default

Originally Posted by bob guzzy
All of the LS engines did it why shouldn't this one, it has the same PCV system and the system will catch oil mist and drag it up into the intake.

I wasn't worried when I saw it on my zo6 in 2002 and again on my silverado in 2008.
Previous LS motors weren't DI

FWIW....

http://www.moderncamaro.com/forum/ge...i-engines.html
Reply
Old Aug 21, 2014 | 10:55 AM
  #17  
3 Z06ZR1's Avatar
3 Z06ZR1
Thread Starter
Team Owner
 
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Default

Originally Posted by bob guzzy
All of the LS engines did it why shouldn't this one, it has the same PCV system and the system will catch oil mist and drag it up into the intake.

I wasn't worried when I saw it on my zo6 in 2002 and again on my silverado in 2008.
I think I have had about 8 Chevy Ls-1- ls 9 engines. Have read about plenty but lucky none of mine did. Even would go out and clean the back of the throttle body blade and intake and find none.

But my lt1 has an issue.
Reply

Get notified of new replies

To Oil thread! Check your intake!

Old Aug 21, 2014 | 11:02 AM
  #18  
stevebz06's Avatar
stevebz06
Melting Slicks
15 Year Member
 
Joined: Nov 2005
Posts: 2,074
Likes: 309
Default

This has been happening since the introduction of the LS1 and probably most piston engines since they were invented. My LS6 had a recall on piston rings to reduce oil consumption, but I didn't like the idea of tearing an engine apart to solve what I didn't see as a problem.

My car gets autocrossed frequently and seldom street driven, so it probably sees high revs more frequently than most cars and I do have to add oil once or twice a month, but the last time I had it dyno'd, it was running as good as I could hope for. I don't have a catch can.

I do clean the intake and manifold once in a while with various products and it maybe helps the car run a little smoother, but I just haven't seen a noticeable impact on performance because of this, although I agree that ideally, you don't want oil in the combustion chamber.
Reply
Old Aug 21, 2014 | 11:15 AM
  #19  
KenHorse's Avatar
KenHorse
Team Owner
 
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Default

Originally Posted by stevebz06
This has been happening since the introduction of the LS1 and probably most piston engines since they were invented.
See Post #16 above
Reply
Old Aug 21, 2014 | 11:25 AM
  #20  
Mike Mercury's Avatar
Mike Mercury
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Default

is this happening to just the mid-engined Corvettes?

Originally Posted by Steve_R
Need more exclamation marks.

Reply



All times are GMT -4. The time now is 04:53 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 11:09:53


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE