The Schley 99700 DOHC valve lifter tool is a specialized automotive tool designed for working on Dual Overhead Cam (DOHC) engines. This tool plays a crucial role in engine maintenance and repair, aiding in the removal and installation of valve lifters. The tools slide between the cam tower and the cam lobe over the valve spring retainer. By pulling up on the tool the valve spring is depressed and allowing for the proper removal of the hydraulic valve lifter. APPLICATIONS: Both turbo and non-turbo: 1.6-liter and 2.0-liter 4 cylinder, 1989 and later, 3.0-liter 6 cylinder, 1991 and later, 3.5-liter 6 cylinder, 1995 & 1996.