tailpipe smoking

2008 CHEVROLET CORVETTE
35,000 MILES
Avatar
CYCLEPOPS
  • MEMBER
  • 5 POSTS
why is car smoking light blue smoke mostly at idle when it is not useing any oil on dipstick
Apr 21, 2013 at 5:18 PM
Advertisement
Avatar
MHPAUTOS
  • ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Blue smoke is oil burning, check spark plugs for ash deposits a comp test or a leak down test will give a good indication as to ring condition.
Apr 22, 2013 at 2:45 AM
Avatar
CYCLEPOPS
  • MEMBER
  • 5 POSTS
did com test and leak down 180 -183 all ,no leak off no black on plugs,all rubber around valves looks great [as it should ] .shows some oil in intake but can not figure how it's getting there took hoses off vacum sys , drove 40 mi still smoking same. thanks for any help u can give me terry
Apr 22, 2013 at 5:02 AM
Avatar
CYCLEPOPS
  • MEMBER
  • 5 POSTS
cold i have a cracked [ broken oil [ ring and leak down still be good
Apr 22, 2013 at 5:21 AM
Avatar
CYCLEPOPS
  • MEMBER
  • 5 POSTS
and i don't understand what o-ring ?????
Apr 22, 2013 at 5:23 AM
Avatar
MHPAUTOS
  • ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
engine may be breathing heavy, due to blow by constant blue smoke is oil burning, either from faulty rings or worn valve guides and valve guide seals.
Apr 22, 2013 at 2:18 PM
Avatar
CYCLEPOPS
  • MEMBER
  • 5 POSTS
ok thanks
Apr 23, 2013 at 4:31 PM
Avatar
MHPAUTOS
  • ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
closing thread, you can re post if you have further questions, do not respond to this message.
Apr 24, 2013 at 2:59 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.