Hemi Camshaft Replacement in Calgary

The Problem: A Common Hemi Design Flaw



If you own a 5.7L Hemi engine—especially the Gen III model (2009–present)—you may have heard about camshaft and lifter issues. These engines are prone to lifter failure, which can seize the rollers and cause serious damage to the camshaft lobes. It’s a known issue, often made worse by poor maintenance or extended idling. The Gen III 5.7L Hemi (also known as the Eagle Hemi) has a weak point in its valvetrain. The lifter rollers can seize and dig into the camshaft, destroying the lobes.

Common Causes

• Poor Maintenance: Skipping oil changes or using low-quality oil and filters can accelerate lifter and camshaft wear.
  
  
• Extended Idling: These engines use splash-fed lifters, which rely on higher RPMs for proper lubrication. Long periods of idling can starve them of oil.
  
  
• Manufacturing Flaws: In some cases, improper hardening during manufacturing can lead to premature camshaft failure.

Signs of Camshaft or Lifter Issues



Watch out for these warning signs in your Hemi-powered vehicle:

• Tapping or Ticking Noises: A noticeable tick from the top end is often the first red flag.
  
  
• Loss of Power or Poor Acceleration: Damaged lobes can affect valve timing and reduce engine performance.
  
  
• Misfires or Rough Idle: A misfiring cylinder could point to a failed lifter.
  
  
• Excessive Exhaust Smoke: Poor combustion from valvetrain issues can increase emissions.
  
  
• Metal Shavings in Oil: Lifters breaking down can leave debris in the oil system.
  
  
• Check Engine Light: Misfires or valve timing problems often trigger engine codes.