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:

pcv valve?

Thread Tools
 
Search this Thread
 
Old Nov 13, 2008 | 10:15 PM
  #1  
togan's Avatar
togan
Thread Starter
Instructor
 
Joined: Nov 2008
Posts: 133
Likes: 0
From: Rincon Ga
Default pcv valve?

my car wants to spudder and try to shut off whenever it wants, and yesterday i noticed the pcv valve hose was dry rotted in two right by the valve, could this be what was causing my car to run like crap?
Reply
Old Nov 13, 2008 | 10:33 PM
  #2  
fst85vtt's Avatar
fst85vtt
Racer
20 Year Member
Liked
 
Joined: Oct 2004
Posts: 480
Likes: 16
From: chicago il
Default

Bingo
Reply
Old Nov 13, 2008 | 10:35 PM
  #3  
togan's Avatar
togan
Thread Starter
Instructor
 
Joined: Nov 2008
Posts: 133
Likes: 0
From: Rincon Ga
Default

and also im leaking a very small amout of oil from my oil pan. vould it be from the ose also? not working properly?
Reply
Old Nov 13, 2008 | 10:43 PM
  #4  
Dave68's Avatar
Dave68
Race Director
20 Year Member
Liked
 
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Default PCV line

Essentially, you have a vacuum leak. That could make your idle run high, but would also make your engine stutter when you accelerate. Blowby oil escaping past the split hose could make its way down to the pan. You can replace the hose with 3/8-inch (inside diameter) fuel line hose; it's very inexpensive at most auto stores.
Reply
Old Nov 13, 2008 | 10:47 PM
  #5  
togan's Avatar
togan
Thread Starter
Instructor
 
Joined: Nov 2008
Posts: 133
Likes: 0
From: Rincon Ga
Default

my oil pressure sending unit it also bad, could the oil be leaking from there?
Reply
Old Nov 14, 2008 | 12:29 AM
  #6  
dgrant3830's Avatar
dgrant3830
Tech Contributor
10 Year Member
 
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Default

You need to fix both. The tube connection for the PCV valve can be easily replaced with some 3/8 inch fuel line tubing. If your oil pressure sender is leaking oil out through the connector, time for a new one.
Reply
Old Nov 14, 2008 | 07:34 AM
  #7  
Quicksilver Vert 01's Avatar
Quicksilver Vert 01
Tech Contributor
10 Year Member
 
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Default

Originally Posted by dgrant3830
You need to fix both. If your oil pressure sender is leaking oil out through the connector, time for a new one.


Don't wait too long on the pressure sensor either, if it's leaking now, replace it soon.

I had one BLOW on another GM car, and lost all the oil in a very short time. Luckily, the fuel pump shut down with the loss of oil pressure, and saved the engine from damage.
Reply
Old Nov 14, 2008 | 03:41 PM
  #8  
Dave68's Avatar
Dave68
Race Director
20 Year Member
Liked
 
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Default

Originally Posted by Quicksilver Vert 01


Don't wait too long on the pressure sensor either, if it's leaking now, replace it soon.

I had one BLOW on another GM car, and lost all the oil in a very short time. Luckily, the fuel pump shut down with the loss of oil pressure, and saved the engine from damage.

I thought the pressure sensor is threaded. How can it "blow" out unless it is very loose?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old Nov 14, 2008 | 08:15 PM
  #9  
Quicksilver Vert 01's Avatar
Quicksilver Vert 01
Tech Contributor
10 Year Member
 
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Default

Originally Posted by Dave68
I thought the pressure sensor is threaded. How can it "blow" out unless it is very loose?
Dave, It failed internally causing the oil to leak out at the sensor electrical connector. The lower metal threaded part of the sensor was still tight in the engine block.
Reply
Old Nov 14, 2008 | 08:49 PM
  #10  
intoc6s's Avatar
intoc6s
Drifting
 
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
Default

black99 just made me realize that i had an "open" pcv system.(a few days ago) I put one in and it no longer stumbles like it used to! I attributed it to the cam being too big, but its smooth as silk now!! I LOVE driving it now!! Thanks black99!!- Jason
Reply
Old Nov 14, 2008 | 11:21 PM
  #11  
Dave68's Avatar
Dave68
Race Director
20 Year Member
Liked
 
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Default

Originally Posted by Quicksilver Vert 01
Dave, It failed internally causing the oil to leak out at the sensor electrical connector. The lower metal threaded part of the sensor was still tight in the engine block.
Ah, now I've heard it all! Amazing......
Reply

Get notified of new replies

To pcv valve?





All times are GMT -4. The time now is 04:57 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE