Investigating Potential Transmission Flaws in Ram Heavy-Duty Trucks

The robustness of Ram Heavy-Duty trucks is under scrutiny as a potential transmission defect could affect nearly 200,000 vehicles. The National Highway Traffic Safety Administration (NHTSA) has initiated an inquiry to determine if a widespread recall is necessary. This article delves into the specifics of the transmission issue, the ongoing investigation, and the implications for both the manufacturer and the consumers.

Unveiling the Underlying Transmission Tribulations of Ram's Renowned Rigs

Potential Transmission Issues in 2022 Ram HD Trucks

Concerns have been raised over the reliability of the 2022 Ram HD truck series, with a particular focus on their transmission systems. A considerable number of these vehicles, estimated at 188,000, might be harboring a significant flaw that compromises their functionality. The issue at hand involves the transmission's K1 snap ring, a component critical for the smooth operation of the first four gears.

Reports have surfaced from drivers experiencing sudden loss of power, particularly at speeds exceeding 25 mph. This malfunction not only poses a risk to the driver but also to the general public, especially since some of the affected vehicles are used in emergency services.

The Scope of NHTSA's Investigation

The National Highway Traffic Safety Administration has taken the initiative to thoroughly investigate the matter, encompassing the Ram 3500, 4500, and 5500 models. The probe extends to specialized vehicles that have been modified for critical services, such as ambulances and other emergency response units. The NHTSA's inquiry is still in its preliminary phase, but it aims to ascertain the extent of the issue and whether a recall would be the appropriate course of action.

As the investigation unfolds, the NHTSA will be meticulously examining the vehicles in question to ensure that any potential safety hazards are identified and addressed promptly.

The Technical Glitch: K1 Snap Ring Failure

The crux of the problem lies in the Aisin six-speed AS69RC automatic transmission, where the K1 snap ring is located. Should this snap ring fail, it could lead to the displacement of the component, rendering the first four gears inoperative. Despite this, the fifth gear and reverse may continue to function normally, leaving drivers with limited vehicle control.

Stellantis, the parent company of Ram, has been notified of 82 complaints regarding this transmission issue. The malfunction indicator lamp may illuminate as a warning sign, and technicians could encounter the P073-00 diagnostic trouble code, indicating a gear shift error.

Stellantis' Response to the Transmission Defect

In response to the growing concerns, Stellantis has issued a service bulletin (TSB-21-002-23) and has communicated the details to the NHTSA. The company has also undertaken dynamometer and field testing to better understand the malfunction. The service bulletin provides guidance for technicians to replace the K1 clutch drum snap ring and, if necessary, the K1 input shaft assembly.

While Stellantis has taken steps to diagnose and address the issue, the effectiveness of these measures remains to be seen as the NHTSA continues its investigation.

Implications of the NHTSA's Findings and Possible Recalls

The outcome of the NHTSA's investigation could have significant repercussions for Stellantis. Should a recall be deemed necessary, it would likely involve the replacement of parts at no cost to the vehicle owners. This could also mean that Stellantis would face pressure to reimburse customers who have already incurred expenses for the replacement of the snap ring.

As the situation develops, both the manufacturer and consumers are advised to stay informed about the latest updates regarding the investigation and any potential recalls that may arise.