1.Use to remove an existing electronic injector sleeve from the cylinder of the 9.0L diesel engine. 2.Install the compression screw into the injector bushing. When installing the tool, the tool extender section must Securely positioned on bushing ID. 3.Use a support wrench to hold the upper part of the compression screw and tighten the lower part of the screw at the same time. 4.until the screw secures the injector bushing 5.Use the support wrench to hold the upper part of the screw and continue to tighten the nut (D) until the bushing tension is released. will line 6.The cover is removed together with the tool