4 Chrysler 6.4 Hemi Problems & How to Fix Them

Short answer: The most common problems with Chrysler’s 6.4 Hemi engine are Multi-Displacement System (MDS) issues, engine tick, transmission failure, and misfires.

These issues occur due to high-performance demands placed on these engines and general wear & tear. Continue reading to learn more about these issues and how to address them effectively.

Problem #1 Multi-Displacement System (MDS) Issues

• What it is: The MDS system deactivates some cylinders to improve fuel efficiency.
• Potential causes: Faulty MDS solenoids, electrical issues, or software glitches.
• Symptoms: Engine running on fewer cylinders than needed, especially during towing or hauling, reduced power, and poor fuel economy.
• Potential fix: Replacing faulty MDS solenoids, updating the engine control unit (ECU) software, or disabling the MDS system if not needed.

Problem #2 Engine Tick

• What it is: A ticking noise often referred to as the “Hemi tick.”
• Potential causes: Faulty lifters, issues with the valve train, or low-quality oil.
• Symptoms: Ticking noise from the engine, rough idling, and potential engine damage if left unaddressed.
• Potential fix: Replacing faulty lifters, inspecting and repairing the valve train, and using high-quality engine oil.

Problem #3 Transmission Failure

• What it is: Issues with the transmission, including rough shifting and complete failure.
• Potential causes: High torque output of the engine, worn-out transmission components, or inadequate transmission fluid.
• Symptoms: Rough shifting, slipping gears, and transmission warning lights.
• Potential fix: Rebuilding or replacing the transmission, ensuring proper transmission fluid levels, and regular maintenance.

Problem #4 Engine Misfire

• What it is: Engine misfires due to faulty ignition components.
• Potential causes: Faulty spark plugs, ignition coils, or fuel injectors.
• Symptoms: Rough idling, reduced performance, increased emissions, and engine warning lights.
• Potential fix: Replacing faulty spark plugs, ignition coils, or fuel injectors, and performing regular engine tune-ups.

Is There a Recall on the 6.4 Hemi Engine?

As of now, there isn’t a specific recall for the 6.4 Hemi engine. However, significant issues have been reported, particularly related to the valve train system. These problems have led to class action lawsuits, one of which we have previously written about here.

The ongoing lawsuit, which includes the 6.4-liter Hemi 392 V8 engines, alleges that the valve train systems are defective.

This defect can cause engine ticking noises, misfires, rough idling, and even complete engine failure due to metal shavings circulating through the engine.

The lawsuit claims that Fiat Chrysler Automobiles (FCA) has been aware of these issues but has not taken adequate steps to address them

Who Pays for the Issues I Experience with My 6.4 Hemi?

If you’re experiencing issues with your 6.4 Hemi engine, there are a few potential avenues for covering the costs:

• Warranty: The 6.4 Hemi engine typically comes with a factory warranty of five years or 100,000 miles. If your vehicle is still under warranty, the manufacturer should cover the repair costs for any defects or issues that fall within the warranty terms.
• Class Action Lawsuit: As mentioned earlier, there is an ongoing class action lawsuit regarding the 6.4 Hemi engine’s valve train defects. If you are part of this class action, you might be eligible for compensation or repairs covered by the settlement, depending on the outcome of the case.
• Insurance: Depending on your insurance policy, some engine repairs might be covered, especially if the damage was caused by an accident or other covered event. It’s best to check with your insurance provider to understand what is included in your coverage.
• Out-of-Pocket: If your vehicle is out of warranty and not covered by the class action or insurance, you might need to pay for repairs yourself. The cost can vary significantly depending on the specific issue and the repair shop

If you’re facing significant repair costs, it might be worth consulting with a legal expert to explore your options, especially in relation to the class action lawsuit.

Here’s How a Lemon Law Expert Could Help

If you’re experiencing persistent problems with your Chrysler 6.4 HEMI engine and haven’t found a satisfactory solution from your dealership or manufacturer, it might be time to explore your legal options.

A knowledgeable lemon law attorney can help you seek a resolution, whether it’s obtaining compensation, securing a replacement vehicle, or even receiving a refund if your vehicle qualifies as a lemon.

For Chrysler 6.4 HEMI engine owners facing unresolved issues, the Lemon Law Experts are here to provide the support and legal guidance you need.

With extensive experience in handling cases involving engine failures and other recurring vehicle defects since 2009, we can advocate on your behalf to get the compensation or remedy you deserve.

Contact the Lemon Law Experts today to learn how we can assist with your Chrysler 6.4 HEMI engine’s ongoing problems.