How to replace the water pump (L61) on Chevrolet Malibu?

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Before you work on the Water Pump l61 you must empty the coolant system. Set the sprocket and chain in the correct position by using the Water Pump holding tool (J 43651) before starting service. Take out the bolts linking thermostat pipe to cylinder unit and remove exhaust manifold shield plates from top and bottom. Disconnect the Water Pump access panel plus right-hand wheel assembly unit. Shutdown the internal push-pins and get rid of the splash shield parts. Detach the engine Coolant Temperature Sensor wiring and go ahead with Water Pump Drain Plug removal for additional fluid removal. Move the thermostat housing left while twisting its bolts to detach the water feed pipe but leave coolant hoses and housing cover joined. Set the water pipe seals apart and add the Water Pump holding tool (J 43651) to the Water Pump sprocket before tightening its bolts. Fasten the Water Pump tool while tightening the cover bolts followed by the removal of both engine block retaining bolts and sprocket bolts from within the Water Pump. Disconnect the Water Pump unit including its o-ring seal. First read through all steps of the procedure to prevent Water Pump re-timing problems during installation. Use a new Water Pump seal then make an alignment guide using an m6 m x 6 mm bolt. Put the Water Pump assembly against the engine block surface and start the bolts by hand. Replace the inner Water Pump sprocket bolts by removing the guide pin after tightening the first two bolts. Then apply 25 nm (18 ft. Lbs.) torque to all Water Pump bolts. Use a 10nm torque wrench to fasten and then take out the Water Pump holding tool (J43651) after tightening the Water Pump socket bolts. Fix the Water Pump access plate onto its position with bolts that require tightening to 10 nm (89 inch lbs). Apply silicone gel to the water feed pipe seals then put on a fresh o-ring seal and check that the thermostat housing block seal remains in place. Fit the water supply hose into the assembly while maintaining proper alignment to the thermostat opening then insert the o-ring seal gently. Set the thermostat housing on the engine space and secure the bolts at 10 nm torque (89 inch lbs). Rejoin the Coolant Temperature Sensor before attaching the inner splash shield with push pins and lastly the right-hand wheel assembly together with its wheel nuts at 125 nm (92 ft. Lbs.). Set the vehicle to its normal height before attaching the thermostat pipe bracket to the cylinder head bolt at 8 nm (71 inch lbs.) and placing the exhaust manifold heat shield bolts which need torqueing to 23 nm (17 ft. Lbs.). Check the vehicle level while closing all drain valves then fill the engine coolant system and look for any fluid leaks.

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