Engine problems

problem in internal combustion engine

gasket that sits between the engine block and cylinder head(s) in an internal combustion engine

uncontrolled acceleration of a diesel engine

thumb|Flames bursting from the exhaust pipe of an Audi Sport Quattro S1 E2 Pikes Peak A backfire or afterburn is combustion or an explosion produced by a running internal combustion engine that occurs in the exhaust system, rather than inside the combustion chamber. It is also sometimes referred to as an afterfire, especially in cases where the word backfire is used to mean a fuel burn that occurs while an intake valve is open, causing the fire to move backward through the system and out through the intake instead of the exhaust. When the flame moves backward it may also be called a "pop-back"

liquid fuel prematurely gasifying