2016 Chevrolet Silverado 1500: misfire or rough idle

Filed Sep 7, 2025 · Transmission · FL

This vehicle has experienced repeated and ongoing serious defects with the 8L90 Transmission Torque Converter. I took delivery of this vehicle on 17SEP2016 and since it has required multiple service appointments to address the issue. To date it has not been satisfactorily repaired. Despite repeated failed repair attempts the vehicle exhibits erratic transmission slipping, jerking, hesitation and surging under acceleration. These symptoms persist even after a most recent torque converter replacement (and subsequent re-replacement as outlined below). This creates a serious safety concern particularly when accelerating into traffic, merging and driving uphill, but also in low speed maneuvers such as navigating a parking lot. The vehicle often feels like it is misfiring under acceleration when trying to merge, then surges forward erratically. In parking lots at low speeds, the downshift of this transmission is so abrupt that it often causes the driver and passengers alike to believe that the vehicle has been hit from behind. The repair history started within 2 years/24K miles as follows: - 01FEB2018 @ 28140 - Drain flush and fill transmission for Shudder/Hard Down Shift - Diagnosed as Torque converter issue. This helped for a short period of time - 26JUN2019 @ 53445 Miles - Same issue - same diagnosis - same repair attempt - this was unsuccessful in anyway. - 12NOV2019 @ 60653 Miles - Same issue and diagnosis - Torque converter replaced - 31JUL2024 @134218 Miles - Same issue and diagnosis - Flush and fill recommended since extended warranty had expired - paid $300 for transmission fluid flush and fill - 15APR2025@145963 Miles - Same issue and diagnosis - Torque converter replaced for $2956 - there was no appreciable improvement - 08AUG2025@151182 Miles - Torque Converter replaced under warranty from 15APR2025 work - No appreciable improvement - 20AUG2025@151500 Miles - Same issue - Advised to replace entire transmission

Filed Jul 29, 2024 · Fuel system · TX

The engine light displayed "Engine Power Is Reduced". This has occurred three times, twice in 2023 and again recently in 2024. We have taken the vehicle to a qualified shop on each occasion. The second time we took the truck to the shop, after keeping it for almost two weeks, it was returned to us, and according to the mechanic, the engine light would not come on with test driving and he stated there was not a problem. Although the engine runs roughly, we are able to drive it at low speeds. Currently, the engine light comes on intermittently. This past few weeks, it happened again while traveling 65 mph on a busy freeway. The engine slowed down and I was able to get it up to a max of 30 mph until I could get to a frontage road. We made it back to our destination at 30 - 40mph using flashers at some points because the engine felt as if it was going to stall. This issue could result in a rear end collision and serious injury. Although the engine runs roughly, we are able to drive it at low speeds. Currently, the engine light comes on intermittently. We will be returning the truck for service. However, we are not confident that the problem will be resolved.

Filed Jul 30, 2020 · Transmission · 34,000 miles · FL

Upon leaving my residence and heading to work in the morning, the truck started sputtering and cutting out while driving through the intersection. The action impeded the traffic and the engine light cut on. After reviewing the fault code, it displayed a p0300 misfire code and p050d, commonly related to faulty fuel injectors. The truck had approximately 34000 miles when the issue started. Local chevy dealer advised they are not covered under power train warranty and bumper to bumper has expired. The issue is now re occurring and the fuel injectors are on back order.

Filed Jun 23, 2020 · Fuel system · 86,000 miles · GA

While driving down the highway and traveling on an exit ramp about halfway through, my vehicle momentarily "shuddered" or "lost power" followed by the check engine light flashing. This could have resulted in quite a serious accident, however I was able to retain control of the vehicle and pull over immediately. When I pulled over, I connected my code scanning tool and pulled a p0300 code from the vehicle, meaning it had multiple/random misfires. This coincides with the "shudder". Upon taking the vehicle to the dealership to get a diagnostic, the service writer informed me they have had quite a few vehicles with the same engine come in for misfire issues, usually resulting in fuel injectors being replaced or the fuel pump. Searching online, it seems to be a fairly consistent issue. Multiple forums have been dedicated to it, along with many youtube videos describing it and showing how to replace the injectors or fuel pump. As this seems like a widespread issue, I would like to request the federal safety agency look into the matter and make a determination. I would hate for a similar situation to happen to someone and they are not able to retain control of the vehicle.

Filed Jun 14, 2019 · Engine · 23,672 miles · NY

The truck is less than 3 yrs old with only 23671 miles. Check engine light came on. P050d code and the transmission began to down shift hard at times when slowing down. Dealer said there was carbon build up on cylinder 1 valves that caused them to stick and a misfire. I found it interesting that cylinders 1-4-6-7 are the cylinders that shut down for afm active fuel management system when it goes into v4 mode. Dealer said it was not related. Said it was poor fuel. Said I need to run top tier detergent from select gas stations. That is the first time anyone has told me this. That's not in the owners manual and no one told me I would need to use special gas stations when I bought the truck brand new. I then told him the two stations I use are mobil and sunoco. Both of which are on the top tier fuel distributor list. Interesting fact: top tier fuels is a registered trademark of general motors. They failed to mention that when they told me about my "poor fuel" which is apparently a licensed gm product. I was told if this happens again I would have to pay as it would likely be outside the bumper to bumper warranty period (36 mos). Apparently the fuel system is not part of the power train? Found nothing with the transmission. Not surprised. Last new chevrolet I will ever buy.