Abstract: A method and device are provided for loosening a sticking connection, in particular a glow plug in the cylinder head of an engine. The device comprises a mechanism for generating vibrations in an axial direction, preferably pneumatically, hydraulically or electrically, as well as means of transmitting the axial vibrations to the sticking connection, wherein the device also comprises means of exerting a couple, preferably read off or pre-adjustable, to the connection to be loosened. In the method, the sticking connection is subjected to preferably pneumatically, hydraulically or electrically generated axial vibrations, wherein a couple is also exerted on the sticking connection, preferably manually and pre-adjusted, in order to loosen it.