Blue Smoke
Thread Starter
Racer
Joined: Jan 2009
Posts: 299
Likes: 1
From: 310 California
Blue Smoke
Blue Smoke out the exhaust not covered under warranty ?
I recently started to notice that my car was blowing out blue smoke out the exhaust. I took it in for warranty work, they replaced the catalytics and returned the car to me stating the car is fine. Im sure its still smoking blue the catalytics are doing a good job at burning the smoke. Any ideas on what I can do to get this job taken care of.
BTW the car is a 2002 C5 with 40k miles with BS warranty through CarMax.
Thanks
I recently started to notice that my car was blowing out blue smoke out the exhaust. I took it in for warranty work, they replaced the catalytics and returned the car to me stating the car is fine. Im sure its still smoking blue the catalytics are doing a good job at burning the smoke. Any ideas on what I can do to get this job taken care of.
BTW the car is a 2002 C5 with 40k miles with BS warranty through CarMax.
Thanks
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Blue smoke (appearing out the exhaust while you are driving) generally indicates a ring problem. Have them run a leak-down test to determine how well the rings are sealing. Without looking at your warranty, I can't say whether or not this is covered. However, I believe that it should be covered.
If the smoke appears only after idling for a while (smoke billows out the exhaust, immediately afterward), then your valves/valve guides/valve seats may be worn out or damaged.
If the smoke appears only after idling for a while (smoke billows out the exhaust, immediately afterward), then your valves/valve guides/valve seats may be worn out or damaged.
Last edited by Dave68; Jun 3, 2010 at 03:04 PM.
Thread Starter
Racer
Joined: Jan 2009
Posts: 299
Likes: 1
From: 310 California
The funny part about that, I asked them to do a leak down test. They told me to perform a leak down test on the vehicle would be a $350 labor charge.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
The way a dealership would handle it is that if the test does not reveal a warranty repair condition, the customer pays for the test. If the test shows that the condition does exist, the dealership runs all charges through the warranty coverage.
Drifting
Joined: Apr 2007
Posts: 1,496
Likes: 1
From: LEBANON PA.
Hi There,
How much oil are you using in 2k miles? See what the shop manual specifies as normal.
I would pull all the spark plugs until you find the ones that are fouled with oil. If you have a friend that is a mechanic have him do the leak down test on those cylinders as well as a compression test on all cylinders.Have you replaced the pcv valve delco p/n cv948c. To test blow w/your mouth, on the end you should not be able to blow into it, on the other end you can blow into it. ops ck ok. other wise replace it.
robsc501
How much oil are you using in 2k miles? See what the shop manual specifies as normal.
I would pull all the spark plugs until you find the ones that are fouled with oil. If you have a friend that is a mechanic have him do the leak down test on those cylinders as well as a compression test on all cylinders.Have you replaced the pcv valve delco p/n cv948c. To test blow w/your mouth, on the end you should not be able to blow into it, on the other end you can blow into it. ops ck ok. other wise replace it.
robsc501
Last edited by robsc501; Jun 5, 2010 at 12:48 AM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Racer
Joined: Jan 2009
Posts: 299
Likes: 1
From: 310 California
I took the plugs out and checked them, and number 7 was extra crispy with alot of carbon build up surrounding the plug. I'll end up doing the compression check this weekend and see the outcome. I think the dealer is just being too lazy to do the work !
Thanks for your help guys !
Thanks for your help guys !
Thread Starter
Racer
Joined: Jan 2009
Posts: 299
Likes: 1
From: 310 California
Hi There,
How much oil are you using in 2k miles? See what the shop manual specifies as normal.
I would pull all the spark plugs until you find the ones that are fouled with oil. If you have a friend that is a mechanic have him do the leak down test on those cylinders as well as a compression test on all cylinders.
robsc501
How much oil are you using in 2k miles? See what the shop manual specifies as normal.
I would pull all the spark plugs until you find the ones that are fouled with oil. If you have a friend that is a mechanic have him do the leak down test on those cylinders as well as a compression test on all cylinders.
robsc501
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
You might wish to review this Service Bulletin, print and show it to the dealer. Your vehicle is affected by this.
01-06-01-023A
01-06-01-023A
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
You're basically screwed.
They won't fix it just because it smokes. Then when you have a total engine failure they will tell you that you ran it low on oil.
Thread Starter
Racer
Joined: Jan 2009
Posts: 299
Likes: 1
From: 310 California
Never too much I'm going to do an oil change, change the plugs and compression check an see what the outcome is and take it back to them. I really want to start modding it, but I don't want to start with a hurt motor.
Last edited by Vette310; Jun 3, 2010 at 08:28 PM. Reason: Spelling
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
As stated, if its dumping blue smoke while driving, then its probably rings. If it only happens when you first start up or first pull off from a light as such, then its probably the valve stem seals or guides.
Drifting
Joined: Apr 2007
Posts: 1,496
Likes: 1
From: LEBANON PA.
Hi There,
You are correct 180- 190 psi for the compression test.If number seven is much lower ( say a 160 psi) than the rest thats the one that needs new compression rings & oil control rings installed.Read my earlier post.The problem is the # 2 compression ring tension is 9lbs causing that ring to float or flutter in the cylinder & the corrected one is 13 lbs & eliminates this flutter & oil consumption.
robsc501
You are correct 180- 190 psi for the compression test.If number seven is much lower ( say a 160 psi) than the rest thats the one that needs new compression rings & oil control rings installed.Read my earlier post.The problem is the # 2 compression ring tension is 9lbs causing that ring to float or flutter in the cylinder & the corrected one is 13 lbs & eliminates this flutter & oil consumption.
robsc501
Last edited by robsc501; Jun 5, 2010 at 12:57 AM.