Can piston rings cause white smoke?
Can piston rings cause white smoke? Leaking Piston Ring or Valve Seal If a valve seal has lost its grip or piston rings get worn, they can cause oil to leak into the combustion chamber. This wayward fuel then mixes with other engine elements and burns, causing white or blue smoke to escape from the exhaust manifold. How are piston rings replaced in an engine? Since the piston rings are located deep in an engine, the mechanic has to disassemble the engine and reach in to remove the old piston rings and replace them with new ones. This whole process...