The 5.7-liter HEMI is a strong, proven V8, but it does have a well-known issue that many owners have heard of — the “Hemi tick.” This isn’t just an exhaust noise or a harmless sound; in some cases, it’s caused by lifter failure inside the engine. � What’s actually happening is the roller needle bearing inside the lifter can fail. When that happens, the lifter roller no longer smoothly follows the camshaft lobe. Instead, it starts impacting the cam, which eventually wears the cam lobe down. Once