C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Smoke at dip stick

Thread Tools
 
Search this Thread
 
Old Sep 6, 2008 | 08:34 PM
  #1  
smace's Avatar
smace
Thread Starter
Instructor
15 Year Member
 
Joined: Jan 2007
Posts: 175
Likes: 1
From: Ocala FL
Default Smoke at dip stick

I have a 2003 with 65000 miles. Today I noticed when I went to check the oil I was getting some smoke out of the dip stick. I was told I needed a PCV Valve and it would go away. Is that all it could be?
Reply
Old Sep 7, 2008 | 11:56 AM
  #2  
500hp's Avatar
500hp
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2004
Posts: 781
Likes: 0
Default

Are you getting the smoke when the car is running? Not running?
How about smoke at the oil fill cap?

It COULD be as simple as a PCV system issue, or as serious as a broken piston ring or ring land.
Reply
Old Sep 7, 2008 | 01:18 PM
  #3  
smace's Avatar
smace
Thread Starter
Instructor
15 Year Member
 
Joined: Jan 2007
Posts: 175
Likes: 1
From: Ocala FL
Default

I am only getting smoke out of the dip stick when the car is turned off. When it is running no smoke and there is also no smoke at the filer cap.
Reply
Old Sep 7, 2008 | 04:44 PM
  #4  
500hp's Avatar
500hp
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2004
Posts: 781
Likes: 0
Default

Hmmm, not sure.
I guess you can check your PCV connections, hoses, and replace the valve.
You may want to do a compression/leak down test on all cylinders, if it continues.
Smoke vacates when not running, but is this after just idling?
When was the last time you drove the car 'hard'?

Other possible considerations...
Are your oil temps normal? Oil pressure normal?
Check your coolant level for useage/loss.
Reply
Old Sep 7, 2008 | 05:22 PM
  #5  
hotwheels57's Avatar
hotwheels57
Race Director
15 Year Member
 
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Default

"Blow by" internal gases look for the path of least resistance...be in an old fashioned road draft tube, PCV, valve cover breather(s), dip stick, oil fill cap or through gaskets.
The PCV is a possibility and it's certainly cheap enough to replace and find out.
Worst case scenario, you might have some internal issue(s) that is causing the issue. If the car had just been running before you checked the oil, the smoke is not uncommon. But, the motor that might have rings or valves in need of repair. Do the leak down test as suggested.
Reply
Old Sep 7, 2008 | 07:53 PM
  #6  
Millenium Z06's Avatar
Millenium Z06
Moderator
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 22,695
Likes: 943
Default

With the engine running, open the oil fill cap and see if you can feel air coming out or any type of positive pressure. If so then you have a ring seal problem. Do a compression check at that point.
Reply
Old Sep 7, 2008 | 09:24 PM
  #7  
smace's Avatar
smace
Thread Starter
Instructor
15 Year Member
 
Joined: Jan 2007
Posts: 175
Likes: 1
From: Ocala FL
Default

There is no pressure at the oil cap with the engine running.
Reply
Old Sep 8, 2008 | 03:53 PM
  #8  
smace's Avatar
smace
Thread Starter
Instructor
15 Year Member
 
Joined: Jan 2007
Posts: 175
Likes: 1
From: Ocala FL
Default

Replaced the PCV today and it still smokes after driving the car out of the dip stick. The PCV we replaced seems a little clogged When it is running there is no smoke. The car runs great with no codes. Should I have a compression check done is this normal? I would have never noticed if someone didn't point it out to me.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

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

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

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

 Michael S. Palmer
story-4

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

 Joe Kucinski
story-5

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

 Joe Kucinski
story-6

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

 Verdad Gallardo
story-7

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-8

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
Old Sep 8, 2008 | 04:34 PM
  #9  
hotwheels57's Avatar
hotwheels57
Race Director
15 Year Member
 
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Default

If it runs good and you have no codes, just enjoy it. Watch your oil level on a more regular basis.
If you determine that you're losing oil at an increased rate, then decide what you want to do...
Reply
Old Sep 8, 2008 | 07:09 PM
  #10  
smace's Avatar
smace
Thread Starter
Instructor
15 Year Member
 
Joined: Jan 2007
Posts: 175
Likes: 1
From: Ocala FL
Default

It burns no oil thats for sure. I just went on a 1500 mile road trip and it used no oil. I did drive a 2000 5 speed today and got out and checked the oil right after driving it and saw the same thing. Is this kinda normal for a Vett.

Last edited by smace; Sep 8, 2008 at 07:31 PM.
Reply
Old Sep 8, 2008 | 08:01 PM
  #11  
hotwheels57's Avatar
hotwheels57
Race Director
15 Year Member
 
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Default

Originally Posted by smace
It burns no oil thats for sure. I just went on a 1500 mile road trip and it used no oil. I did drive a 2000 5 speed today and got out and checked the oil right after driving it and saw the same thing. Is this kinda normal for a Vett.
Some "blow by" gases is normal for any motor...
Reply
Old Sep 8, 2008 | 10:27 PM
  #12  
smace's Avatar
smace
Thread Starter
Instructor
15 Year Member
 
Joined: Jan 2007
Posts: 175
Likes: 1
From: Ocala FL
Default

Thats good to know. Can someone go punch the fool who made me feel sick to my stomach.
Reply
Old Sep 8, 2008 | 10:59 PM
  #13  
Millenium Z06's Avatar
Millenium Z06
Moderator
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 22,695
Likes: 943
Default

Originally Posted by smace
Thats good to know. Can someone go punch the fool who made me feel sick to my stomach.
Point him out and for an extra $2 I'll kick him in his goodies.
Reply
Old Sep 9, 2008 | 06:56 PM
  #14  
02gt350's Avatar
02gt350
Le Mans Master
 
Joined: Nov 2005
Posts: 5,451
Likes: 2
From: East Peoria Illinois
Default

when my car runs i have a TON of smoke and air coming out of the oil fil cap. screw it....
Reply

Get notified of new replies

To Smoke at dip stick





All times are GMT -4. The time now is 01:03 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE