Why does my car have blue smoke on startup?
The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. Blue exhaust smoke only at start-up can indicate worn piston seals or damaged or worn valve guides which may also cause a rattling noise.
What causes a puff of smoke on startup?
If you notice white smoke from the exhaust on startup, this means that your car engine is taking on too much fluid from the vacuum pipe or the hose, meaning that your car will be burning excess oil and causing a burnt smell that is noticeable to the drivers and passengers.
What does Blue smoke mean on a cold start?
Blue tints in startup smoke on cold engines normally indicates some wear on the valve guides or seals (usually the seals) that are letting a bit of lubricating oil past the guides down the valve stem into the combustion chamber. It will go away once the engine warms up and the seals start working better.
What does Blue Smoke on start up mean?
Every single one of those cars had coked up valve trains and clogged oil return passages. When a mechanic was in between jobs or held up on parts they would grab one off the back lot and start in with the PITA job of cleaning the valve train up and opening up the drain holes.
Why does my Toyota rabbit have blue smoke?
While this can cause problems over time, such as fouling the spark plugs, or damaging the cat, as long as the oil consumption is within Toyota’s spec, me, I’d live w/it. It is a 4 cylinder. I had a VW Rabbit that had bad valve stem seals.
Why does my Toyota Camry have blue smoke?
In have a 2005 Toyota Camry with 120,000 miles. Upon starting the engine there is a puff of blue smoke with smell of oil burning. There does not appear to be any smoke during the running of the car. Any clues on what the root cause could be?
What to do if you have blue smoke coming from your engine?
First of all, remove the valve cover and do necessary cleaning to rid your engine of debris. Despite various type of engines , the first thing which can cause blue smoke is surely the engine. Clean the drain back holes carefully and recheck and reassemble them. After the mending job, wait for 2 or 4 more days for the remaining oils to clean away.