GM Active Fuel Management Lawsuit: What Owners Need to Know

General Motors (GM) has faced class action lawsuits over alleged defects in their engine components, specifically targeting the Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) lifters used in certain vehicles.

Many consumers have reported experiencing significant engine issues which are believed to be linked to the AFM/DFM systems. These systems are designed to deactivate some of the engine’s cylinders in certain driving conditions to improve fuel efficiency. However, numerous complaints have emerged suggesting that these lifters prematurely fail, potentially leading to costly repairs and safety concerns.

GM Active Fuel Management Lawsuit: What Owners Need to Know

The legal actions against GM are seeking damages and have highlighted the struggles faced by vehicle owners, outlining that the problems occur well before expected lifespans of the vehicles.

Affected models span several years, commonly from 2014 to 2021, and cover a range of vehicles under the GM umbrella, including Buick, Chevrolet, and others. Plaintiffs argue that GM should have known about and disclosed these potential faults.

Some lawsuits have progressed, with notable milestones such as the compulsion of some plaintiffs to enter arbitration and a substantial jury verdict against GM, emphasizing the gravity of the allegations and the impact on consumers.

General Motors Vehicle Performance

In our experience with General Motors vehicles, particularly those outfitted with V8 engines, performance is a significant aspect that owners value.

The 5.3L, 6.0L, and 6.2L V8 engines under the hoods of brands like GMC, Cadillac, Chevrolet, and the famed Corvette have been engineered to deliver power and efficiency.

GM’s Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems are at the heart of performance conservation.

These vehicles are designed to automatically shift between high power modes and more fuel-efficient operations, depending on the driving conditions. However, our understanding reveals that some owners faced challenges with the lifters in these advanced systems, prompting a push for recall and a class action lawsuit.

We recognize that the performance of GM’s V8 engines is crucial to the brand’s identity.

It is evident that GM’s pursuit of performance has not been without its concerns, but our collective dedication to vehicle excellence remains unwavering.

We continue to monitor the progress of the lawsuit and its impact on the efficiency and reliability of GM’s family of vehicles, as the resolution of such issues is paramount for maintaining the performance standards our customers expect.

Active Fuel Management System Issues

The Active Fuel Management (AFM) system in General Motors vehicles has been the focus of a series of lawsuits due to defective components that may lead to engine failure.

The Impact of Defective AFM Components

When AFM lifters fail, our engines can suffer from reduced power and efficiency. These defective lifters directly impact the valve train systems, which are crucial for managing engine performance and fuel economy.

Vehicles with defective AFM components may exhibit issues such as inconsistent acceleration and unexpected power loss.

Identifying Common AFM System Failures

Recognizing early signs of AFM system malfunctions is vital. Typically, an engine light might come on or drivers may notice a decline in engine power.

Specific common issues with the AFM system include stuck lifters or faulty active and dynamic fuel management lifters, leading to a range of drivability problems.

⚠️ Warning

If your vehicle demonstrates these failures, it is advised to seek professional inspection promptly to avoid potential engine damage.

Legal Challenges and Consumer Rights

In the face of numerous legal challenges, consumer rights are being fiercely defended in the ongoing General Motors (GM) Active Fuel Management (AFM) lifters issue. Class action lawsuits highlight a struggle for transparency and compensation, with recent legal proceedings pushing these matters into critical phases of arbitration and court decisions.

Class Action Lawsuits Overview

Understanding the Litigation Landscape:

Lawsuits have been filed against General Motors alleging defects in AFM lifters found in certain GM vehicles. Multiple law firms, including the Miller Law Firm, Berger Montague, Capstone Law APC, and Gordon & Partners, P.A., claim that these defects led to premature failure and, consequently, substantial damages for vehicle owners.

Recent Legal Proceedings

Procedural Developments:

As of recent, a U.S. District Court for the Eastern District of Michigan judge, Laurie J. Michelson, allowed a motion by GM to compel arbitration for several plaintiffs, based on arbitration clauses in their contracts. This has significantly stalled the class action lawsuit’s progress, as arbitration can limit the ability of individuals to litigate in open court.

Meanwhile, a separate case in California led to a substantial jury verdict against GM. These events underscore the importance of comprehending contractual arbitration clauses and their impact on consumer rights to seek relief through litigation.

Service and Maintenance Concerns

When it comes to addressing service and maintenance concerns, we notice a pattern related to the Active Fuel Management (AFM) system in certain GM models such as the Cadillac Escalade, GMC Yukon, and Chevrolet Silverado.

Owners have reported a range of issues including stalling, misfires, and a noticeable ticking noise which have been connected to the AFM lifters.

Common Symptoms:
  • Engine stall
  • Misfire
  • Ticking noise

The valve lifters and valve springs within the AFM system have been indicated as a key cause of such symptoms.

In some instances, the components, including the valve lifter oil manifold, show premature wear like needle bearings deteriorating, which can potentially lead to significant engine damage.

We’re aware of instances where the dealerships acknowledge the fault but the costs of repair or replacement can be a heavy burden if the damage is not covered under warranty.

This includes extensive repairs such as replacing the entire engine control module or undertaking a complete engine replacement.

Lifter Failures

Repair procedures can be complicated. They typically involve disassembling significant portions of the engine to reach the faulty lifters.

This can result in considerable downtime at the dealership and substantial labor costs.

GM dealerships and authorized service centers may offer extended warranties or service bulletins to help mitigate these issues, but the evidence suggests a mix of success and continued service challenges.

Some models, like the Chevrolet Corvette and Buick vehicles, may also experience similar AFM issues.

⚠️ Service Advisory

If your vehicle is exhibiting early signs such as ticking or stalling, prompt inspection at a GM dealership is advised to prevent further damage.

Our understanding is that a vigilant approach to service and maintenance can potentially prevent the more substantial issues associated with the AFM system.

Regular oil changes, using the correct grade of oil, and discussing symptoms early with your service provider can form part of an effective maintenance strategy.

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