2025 Ram 1500: hesitation when accelerating

Filed Nov 5, 2026 · Electrical, Engine · 3,848 miles · SC

The contact owns a 2025 Ram 1500. The contact stated that while driving at night with her spouse, the check engine warning light illuminated, the vehicle experienced a loss of motive power, and the engine required approximately 15 minutes to shut off. The vehicle was taken to the dealer on several occasions for recall remedies and software updates; however, the failure persisted. The contact stated that the check engine warning light illuminated again, and during ignition startup, the vehicle jerked, revved, and exhibited hesitation. The contact stated that the flex fuel system experienced an operational malfunction. The dealer was informed of the failure and deactivated the flex fuel system. The dealer was unable to duplicate the failure. The contact stated that the dealer awaited additional diagnostic testing results related to the recurring check engine warning light and drivability concerns. The failure mileage was 3,848.

Filed Aug 7, 2026 · Engine, Fuel system · MA

On multiple occasions while pulling across/into traffic the vehicle had a delayed acceleration response with a 1-2 second hesitation causing close calls with unpredictable acceleration coming from a complete stop.

Filed Jul 24, 2026 · Engine, Fuel system · WI

I purchased a new 2025 Ram 1500. Within the first week of ownership, the vehicle developed repeated engine misfires, check engine lights, and electrical issues, including a dead battery. The vehicle was repaired multiple times under warranty. The engine later suffered an internal failure that required complete engine replacement. After the engine replacement, the vehicle developed a new drivability problem. The truck now consistently shudders and hesitates during light acceleration and while maintaining a steady speed. The RPM has fluctuated unexpectedly, and the vehicle feels as though it is being fuel starved. This occurs without a check engine light. The dealership’s technician reproduced the condition during a test drive and confirmed the shudder. Stellantis technical support instructed the dealership to replace the mass airflow sensor as the first step in diagnosis but advised that they do not know whether this will correct the problem. I am concerned that the hesitation and shuddering could affect the vehicle’s ability to accelerate safely when merging into traffic, crossing intersections, or passing other vehicles. The vehicle has been out of service for an extended period while diagnosis and repairs continue.

Filed May 6, 2026 · Engine, Transmission · MN

The vehicle has a dangerous hesitation and delayed acceleration when I am coasting and then reapplying the accelerator. This occurs in scenarios such as approaching a yield, slowing for a left turn on a green light, or slowing to merge where I reduce speed but do not come to a complete stop. When I press the accelerator to resume speed, the vehicle does not respond for a significant period. The truck fails to accelerate even with substantial throttle input, including pressing the pedal to the floor. After the delay, power may return suddenly. This delayed response creates a serious safety hazard in traffic. The hesitation occurs at the exact time immediate acceleration is needed to clear an intersection or merge into traffic. This has created near-miss situations due to the vehicle not accelerating when expected. Warning lights and diagnostics: No check engine light is illuminated during the events. The issue occurs without any visible warning indicators on the instrument panel. Conditions: The hesitation is most noticeable during coasting and throttle reapplication at low to moderate speeds, especially when slowing but not stopping. It is not limited to one specific road or location. Service and repair attempts: The vehicle has been presented to a dealer on 06/30/2025, 07/09/2025, 07/17/2025, 08/01/2025, and 02/06/2026. Additionally, I called and confirm there was no software update, recall, or corrective action to be taken on 03/25/2026. The dealer stated they could replicate the issue but could not identify a solution. No permanent fix has been provided.

Filed Feb 25, 2026 · Engine, Fuel system · MD

There have been systemic cylinder misfires (each cylinder), anomalous electrical architecture behavior, and transmission calibration irregularities. The check engine light indicated multiple cylinder misfires, which I understand from the dealer is a common issue with the 2025 model. As the driver, there are a few major issues: Chassis Vibration-pronounced shaking or shuddering transmitted through the steering wheel and seat, particularly during the first engine start of the day or idling. Idle Instability-An erratic or surging idle, where the tachometer needle fluctuates noticeably without any throttle input. Throttle Hesitation-A distinct stumble, lethargy, or loss of power when attempting to accelerate from a stop or while merging. It also requires more energy to accelerate, and stops faster. This problem has been addressed at three (3) CDJR dealerships now, and is still ongoing. The car only has 26k miles on it.

Filed Mar 17, 2025 · Engine · MI

I've owned the 2025 Ram 1500 with the 3.6L 24VVT eTorque engine since [XXX]. Shortly after purchasing the truck the check engine light came on and after checking it with my OBD 2 scanner, a P0300 code Random/multiple cylinder misfire was detected. This problem has been going on for over 4 months with my truck and an internet search tells me others have been dealing with it since August of 2024. With the weather warming up, the engine is sputtering/hesitating on starting my truck and is dangerous to drive at times(pulling into traffic it hesitates) Stellantis knows about the problem and has done nothing to fix it! There should be a National Recall on this by now. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)