2003 Honda Civic smoke

Hi there,

This is not normal. When you back off the throttle when changing gears the engine is in high vacuum and oil is being drawn into the cylinders through a faulty ring or worn valve guides, you will need to do a comp test and a leak down test to check condition of rings, if the car is blowing blue smoke eon cold start up, the valve guides and stem seals will be suspect.

Mark (mhpautos)