2016 Ford Focus - Pushrod

What Are Engine Push Rods?

An engine push rod is a thin metal rod that connects the camshaft and lifter to the rocker arm in an overhead valve engine. Located inside the engine, the push rod may be supported by a series of guides and sits on the hydraulic lifter. As the camshaft rotates, the lifters engage the push rod and move it upward, which in turn presses the rocker arm to open the appropriate valve. Push rods are critical components of an engine's valve train system, and their length and thickness must be carefully matched to the engine's camshaft and rocker arm geometry. A mismatch can cause the engine to perform poorly, reduce power output, or even cause catastrophic engine failure. Though they are not regular service items, pushrods can be damaged or bent in some cases and will require replacement. Pushrods can be bent in a number of ways, including high revs from missed shifts or transmission stalling, poor timing, or internal engine damage. If you hear a ticking noise from the engine, this may indicate a problem with the valve system or low oil levels, so be sure to perform a complete diagnosis before beginning your repair. If possible, check if the rocker arms are adjusted properly and if the pushrods are noticeably bent. A bad lifter can also cause ticking noises deeper in the engine, and if the pushrod has been damaged, the lifters should also be carefully inspected and replaced if they have suffered damage. For everything you need to repair your engine, shop O'Reilly Auto Parts, where we carry replacement camshafts, lifters, push rods, and other valve system components for a complete repair.