Chevrolet Silverado 2500 knocking problems

Filed Sep 29, 2026 · Engine · 121,000 miles · GA

The contact owns a 2021 Chevrolet Silverado 2500. The contact stated that while driving 15 MPH, there was a knocking sound coming from the engine. The vehicle was taken to the local dealer, and the contact was informed that the engine was blown causing complete engine failure. The engine was replaced under warranty, but the failure reoccurred. The warranty company inspected the vehicle. The failure mileage was approximately 121,000.

Filed Jul 25, 2026 · Fuel system · LA

Due to the Fuel Pump Power Control Module (Part number 13554821) failure, my vehicle stalled in the middle of a turn while pulling a 10,000 pound RV. This caused me to lose both power steering and braking capabilities. From what I gather, this part is part of a "phased" initiative recall (see N252516900 Fuel Pump Power Control Module). This part was seemingly installed in all or most of GM SUVs and Trucks since 2021. Unfortunately, only some 2021-2023 models are under recall due to the "phased" nature of this recall. Meanwhile, all Heavy Duty trucks are driving around on our roadways, highways, and interstates, just like I was, towing heavy machinery, equipment, and RVs because both you and GM are dragging your feet on demanding these flawed modules be removed from these vehicles. In summation, virtually every GM SUV and truck on the road produced since 2021 is a ticking time bomb that could stall at any moment and disable both power steering and braking capability. If thats not bad enough, concerned owners, such as myself, are stonewalled with the words "there is no active recall on your vehicle " both by GM and your very website. The "phased" nature of this recall is unacceptable and is putting lives at risk. Had I been traveling at highway speeds when this failure occurred, while towing a heavy load, with braking traffic in front of me or a sharp turn, I would not have been able to stop or turn. This is an urgent matter and should be addressed accordingly, not in a "phased" manner.

Filed Jan 19, 2026 · Engine, Fuel system · MI

first issue was around April-May 2025 when my engine started knocking and burning fuel. Warning light came on and it went right in to the dealer where I have all my maintenance done. They determined that it due to (2) faulty fuel injectors and I had them replaced at that time. In December of 2025 my engine started doing the same thing as before with the knocking and burning fuel and reduced speeds when on the highway so again it went into the dealer. It has since been in there and first was told it was the fuel injector again. They priced out the one was bad and I asked them to replace the remaining 6 fuel injectors so I didn't have this issue again in the near future. They did and the vehicle had the same issues going on. During the next inspection it was determined that the engine needed new rocker arms. These were replaced but this also did not solve the problem and the vehicle would not pass the regeneration on the engine. During the next inspection it was determined that we needed to replace a cylinder and one of the valves. After this was complete they were still having issues and then I was told that the Piston was bad and there are (2) bad valves so I need an entire engine replacement. My truck only has 130,000 miles and has been in the shop for almost 2 months last year from engine issues and it has had all maintenance completed at he same dealership with Records.

Filed Feb 5, 2025 · Engine · 30 miles · FL

The contact owns a 2025 Chevrolet Silverado 2500. The contact stated while driving 30 MPH, the engine light illuminated. There was an extremely loud knocking sound coming from the engine. The vehicle was taken to the local dealer and was diagnosed with a misfire in cylinder #2. There was no compression in cylinder #2. The vehicle was also experiencing catalytic convertor failure. The mechanic used a microscopic camera and determined that the cylinder wall and piston head were damaged. The contact was informed that the engine and turbo needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 30. The VIN was not available.

Filed Dec 2, 2023 · Driver assistance, Electrical · AZ

On July 1st, 2023, I purchased a 2024 Chevrolet Silverado 2500 from Orielly Chevrolet in Tucson, Arizona. On July 2nd, 2023, an error message popped up on the dash, “Park Assist Blocked See Owner’s Manual”. It continued to happen on and off til this very day. The dealership "attempted" to fix the issue, but it obviously hasn't been resolved. Due to equipment being faulty, the chances of an accident whilst back up are significantly increased. At one point on this ordeal, the truck was in the shop for 61 days. It had been in my possession for 18 days. I am currently in the process of a buyback for the vehicle. I had to hire a lemon law attorney. A supervisor from GM advised that GM is refusing a buy back for the vehicle. The vehicle also displayed an error, "key not found" while I was driving at 50mph. A bit unsettling. That error showed up twice on the dash. The dealership said they fixed the issue with a software update. Recently, the vehicle has a ticking noise on the left side of the engine, and the engine idles so low, that it feels like it's going to stall. Those issues haven't been addressed at the shop, because I start a new job on Monday(12/4) and had to drive over 2k miles to get here. Thankfully the truck made it. Not a concern I should have with a brand new vehicle.

Filed Aug 15, 2023 · OH

In 2017 the truck started making a slight ticking sound from the engine so I asked the mechanic about it when I got the oil changed and he said it was a valve problem the GM had no fix for yet. Over time the ticking got louder so I took it back to the dealership last year and the noise as it turns out was from the exhaust manifold bolts breaking off and the exhaust is leaking into the cab. I contacted GM and could not get them to pay for the repairs. After doing an internet search I found out that this is an ongoing problem with these trucks. This is a safety issue and GM needs to fix the problem. the federal safety agency made GM do a recall on the 2019 Buick Enclave because of a possible exhaust leak under the floor and I believe GM should be forced to do a recall on these trucks considering the exhaust fumes are coming out directly in front of the drivers compartment.

Filed Jan 5, 2021 · Engine · 110,000 miles · MI

Tl* the contact owns a 2010 chevrolet silverado 2500. The contact stated that the lifters on the camshaft was making a knocking sound while the vehicle was idling. The contact stated that jim wernig, inc. (2401 old u.s. 27 s, gaylord, mi 49735, (989) 448-4583) was contacted and informed of the failed. The contact was provided information of an unknown recall. The manufacturer was contacted and informed of the failure. The contact was then informed that the VIN was not under recall. The vehicle was not repaired. The approximate failure 110,000.

Filed Jul 28, 2014 · Engine · 22,000 miles · FL

The engine started making a strange ticking noise. The dealer repaired/replaced the passenger side exhaust manifold/bolts under warranty. The driver side broke several months later out of warranty. Dealer repaired. Both sides broke again. You can smell exhaust gas in the vehicle when sitting in traffic.

Filed Mar 7, 2014 · Engine, Transmission · 195,000 miles · SC

Tl* the contact owns a 2003 chevrolet silverado 2500 hd. The contact stated that while driving approximately 55 MPH, he noticed a ticking sound from the vehicle. The noise became louder and the contact later discovered that the bearing and timing chain were damaged. Additionally, the transfer case did not contain any fluid. The vehicle was not taken to the dealer for further inspection. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure and current mileage was 195,000.

Filed Apr 23, 2013 · Engine · 112,780 miles · MI

I notice a ticking from the engine compartment over the last couple of days. I assumed it may be an exhaust leak and I was correct. This vehicle has a stainless steel exhaust system that should last a lifetime yet there seems to be a real problem with exhaust manifold bolts breaking off, causing exhaust leaks which pollute the air and ruin other vehicle components such as the catalytic converter. I am also thinking that the manifolds are warping causing the bolts to break. These repairs are very expensive and/or time consuming. Stainless steel bolts would have possibly prevented this problem. I understand that this problem affects 1999 to 2007 vehicles and I hereby request that a recall be forced upon the manufacturer. The manufacturer has been building cars long enough to know better. There is also a video on you - tube that explains this condition.