OEM 2009 GMC Sierra 1500 Pushrod

2009 GMC Sierra 1500 Pushrod Parts and Q&A

• Q: How to replace the pushrod and valve rocker arm on 2009 GMC Sierra 1500?

  A: Start the replacement process of valve Rocker Arm and push rod by taking out the Rocker Arm cover. The engine operates through a firing sequence that starts with numbers 1 then moves to 8 and 7 before continuing to 2 and following with 6 all the way to 4 then ending at cylinder number 3. This pattern occurs for both banks where 1, 3, 5 and 7 are left-bank cylinders. The number one cylinder Spark Plug removal process should begin with the rocker arms pushrods and pivot support placement onto a rack that will maintain their required positioning for later reinstallment. Begin by removing the Rocker Arm bolts until you can then take out the rocker arms as well as Rocker Arm pivot support and pushrods. The inspection and cleaning of rocker arms should be performed according to necessity. Prior to installation apply clean engine oil to every component such as the rockers and pushrods and the bolts' flange as well. The procedure requires installing the Rocker Arm pivot support as you assure each Pushrod finds its proper location in the valve lifter sockets while placing the pushrods in their correct position in the rocker arms before securing the bolts. Set the Crankshaft at top dead center compression position to position the number one Piston when the number one cylinder rocker arms sit off the lift pattern. You should use this engine position to tighten the Exhaust Valve bolts on rocks 1, 2, 7, and 8 and the Intake Valve bolts on rocks 1, 3, 4, and 5 to a torque of 30 nm (22 lb ft). Fasten the Rocker Arm bolts within the specified torque of 30 nm (22 lb ft) on exhaust valves between cylinders 3, 4, 5, 6 and intake valves between cylinders 2, 6, 7, 8. As the last step replace the number one cylinder Spark Plug and the Rocker Arm cover.