Blue smoke out the tail pipe when starting up this morning is the unusual or not ?????
Elder Member
Joined: Mar 2000
Posts: 22,171
Likes: 0
How to read tail pipe smoke . . .
A general guide to reading exhaust smoke:
<b>Black smoke</b> = unburned fuel
Valves bad or out of adjustment? Carb out of adjustment?
<b>Blue smoke</b> = burning oil
Accelerating: Piston rings bad? Decelerating: Valve seats/guides bad?
<b>White smoke</b> = burning coolant!
Bad head gasket? Warped or cracked Head or Block?$$
Mark, when did you last have your oil changed? It could be over-filled or you have a worn piston ring.
<b>Black smoke</b> = unburned fuel
Valves bad or out of adjustment? Carb out of adjustment?
<b>Blue smoke</b> = burning oil
Accelerating: Piston rings bad? Decelerating: Valve seats/guides bad?
<b>White smoke</b> = burning coolant!
Bad head gasket? Warped or cracked Head or Block?$$
Mark, when did you last have your oil changed? It could be over-filled or you have a worn piston ring.
Elder Member
Joined: Aug 2000
Posts: 13,790
Likes: 0
I'm no expert, but it doesn't sound too good to me. From what I know, blue smoke..
...is indicative of the car burning oil, which obviously means that oil is somehow making its way into the cylinder. What and see what the experts think, though.
Trending Topics
Elder Member
Joined: Mar 2000
Posts: 22,171
Likes: 0
rich, would mean soot which is black :) Like I said I wasn't certain about
lean conditions and the color of the smoke. What Mark's problem most likely is is worn piston rings, which would seem VERY odd. He does not have many miles on his TT. I would not expect anything like that before 100,000 on these engines. I am NOT saying that is his problem, but everytime I have known anyone with blue smoke it is worn rings. . .
I told him in an e-mail to run a compression check on the engine. That should give him some answers. I also said to get to the dealer as well.
I told him in an e-mail to run a compression check on the engine. That should give him some answers. I also said to get to the dealer as well.
AudiWorld Stories
Bringing Audi to Life for Audi Fans
10 Strangest Audi Designs That Actually Made Production
Joe Kucinski
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!
Michael S. Palmer
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!
Verdad Gallardo
The Highs & Lows of Every Audi C-Class Generation
Joe Kucinski
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer
Brett Foote
10 Audi Features & Options We Miss the Most!
Joe Kucinski
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Verdad Gallardo
Coachbuilder Recreates the 1995 Audi TTS Concept
Verdad Gallardo
