slight smoke from exhaust when shifting
no leaks or puddles from either oil or anti freeze
eating through antifreeze and oil rather quickly
when sitting and shifting over a long period of time white smoke is more present.
no smoke while driving
I have had a mechanic check it out they ran tests and flushed the systems and put in a heavier grade of oil the smoke is going away but i want the complete problem to vanish. the car just had a full tune up, now please keep in mind I am not sure how well the last person took care of this car, i know that they did the standard oil changes but that's all I know.
please help i love my summer car and really want to drive it.
If there are no visible leaks....a blown head gasket.
Check Antifreeze level..make sure there are no leaks under the vehicle.
it would cause overheating but the smoke is probally coming from some sort of water or antifreeze in combustion chamber
If you smell antifreeze, there must be a leak somewhere. Have the cooling system pressure tested.
If there is a small drip of antifreeze under the car behind the right front tire, this could be from the evaporation hose. Antifreeze may drip after the car has been run with the air conditioning on. If the air conditioning was not on just previous to noticing the antifreeze, it would be a good idea to check all of the hoses for leaks.
Most of the time it is caused by a hole in the heater core, do you smell a sweet smell? The sweet smell would be the antifreeze.
Possibly the power steering pressure hose. It leaks onto the manifold and smoke comes out from behind the engine near the firewall.
Could be several things. Typically, oil burning is blue smoke, and water/antifreeze is white smoke. With a combination of fast oil leak *and* white smoke, my guess would be to check the Cylinder Head Gasket or a cracked Cylinder Head.
Depends on the smoke. White smoke from burning antifreeze would be a crack in the cylinder head or bad head gasket. Dark smoke would be burning oil from bad piston rings.
Exhaust leaks close to the engine.
Subaru 2.5 liter engine has a problem with head gaskets. If you have not had your head gaskets replaced, that is the first thing I would suspect.
I feel these are unrelated but you can investigate a leak in the hoses leading to the heater core as they maybe leaking onto the exhaust pipe, that would produce white smoke, but not from within the tailpipe exhaust. Water and oil leaks will produce white smoke the smell will help you determine which it is.