5.7 Hemi Lifter Failure Symptoms – Warning Signs Every Ram Owner Should Know

Published by SUSUCAR | Engine Repair Guide

The 5.7L HEMI engine is well known for its power and reliability, but many truck owners eventually experience lifter failure. If left untreated, worn lifters can damage the camshaft and lead to expensive engine repairs.

If you drive a Ram truck or other vehicle equipped with a 5.7L HEMI engine, recognizing the early warning signs can save you thousands of dollars.

Below are the most common lifter failure symptoms and what you should do about them.

1. Ticking Noise from the Engine

One of the first signs of lifter failure is a ticking or tapping sound coming from the engine.

This sound often occurs when:

• The engine is idling
• The vehicle is first started
• Oil pressure is low

Many owners refer to this as the “HEMI Tick.”

While not every tick indicates a serious issue, persistent ticking may mean the lifters are worn or stuck.

2. Check Engine Light

When lifters fail, they can affect the engine’s valve timing, which may trigger the check engine light.

Common related issues include:

• Misfire codes
• Valve timing errors
• Cylinder performance issues

If your truck shows these warning signs, it's important to diagnose the problem early.

3. Engine Misfires

A damaged lifter may prevent the valve from opening or closing correctly. This can cause:

• Rough idling
• Engine shaking
• Loss of smooth acceleration

Misfires can gradually worsen if the camshaft lobes begin to wear.

4. Loss of Engine Power

Failing lifters reduce the engine's ability to properly control airflow. As a result, drivers may notice:

• Slower acceleration
• Reduced towing power
• Poor engine response

This is especially noticeable when driving uphill or towing heavy loads.

5. Metal Shavings in Engine Oil

When lifters wear down, they can start damaging the camshaft lobes.

This may cause metal particles to appear in the engine oil, which is a serious warning sign.

If this occurs, the camshaft and lifters should be replaced as soon as possible.

What Causes 5.7 HEMI Lifter Failure?

Several factors can lead to lifter damage, including:

• Low oil pressure
• Poor lubrication
• MDS system wear
• High mileage engines
• Delayed oil changes

Over time, these issues can cause lifters to collapse or seize.

The Best Fix: Replace the Complete Camshaft Kit

If lifters have already failed, simply replacing them may not solve the problem. In most cases, the camshaft lobes are also damaged.

That’s why many mechanics recommend installing a complete camshaft and lifters kit, which includes:

• Camshaft
• Valve lifters
• Head gasket set
• Head bolts
• Installation hardware

Replacing all these components together ensures the engine runs smoothly and prevents repeat failures.

Pro Tip for HEMI Owners

Many truck owners choose to install a complete engine rebuild kit during repairs to avoid opening the engine again later.

This approach can save both time and labor costs.

Final Thoughts

Lifter failure is a common issue in high-mileage 5.7L HEMI engines, but catching the symptoms early can prevent serious engine damage.

If you notice ticking noises, misfires, or loss of power, it's best to inspect the camshaft and lifters immediately.

Installing a complete camshaft kit with lifters, gaskets, and bolts is one of the most reliable ways to restore engine performance.

Recommended Camshaft & Lifters Kits

If you're planning a repair or engine rebuild, choosing a complete camshaft kit can make installation easier and ensure compatibility.