OTC 6616 Water Pump Holding Tool for GM Holds timing chain in place so water pump can be removed for service Simply remove access plate from front cover and install the tool Special design allows easy installation regardless of timing chain orientation Tool saves costly loss of timing on 20022008 GM 2.2L and 2.4L EcoTech motors found in Chevrolet Oldsmobile Pontiac and Saturn platforms Save time and increase shop productivity