2019 Chevrolet Silverado 2500 engine problems

Filed Mar 14, 2026 · Engine · AZ

The Variable Geometry Turbocharger Actuator failed on my 2019 2500HD Silverado. There was a significant decrease in power. This was most noticeable on uphill grades where speed would drop to between 35 and 40 mph on a 75mph speed limit highway. On several occasions, vehicles came close to hitting me because of my slow speed.

Filed Mar 4, 2026 · Engine · 194,000 miles · TX

The contact owns a 2019 Chevrolet Silverado 2500. While driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and it was determined that the injection pump needed to be replaced, and that the vehicle was not drivable. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline to report the failure. The contact researched and became aware of an unknown recall; however, the VIN was not included. The failure mileage was approximately 194,000.

Filed Nov 5, 2025 · Engine · CA

All or most of the 2019 Chevrolet Silverado 2500 and 3500 models are having the same exact issue, the coolant hoses that cools transmission oil are exposed metal to metal rubbing against each others, and over time from driving normally will eventually cause transmission oil leaks in different areas of the hose element, GM technicians acknowledge it a faulty design from the manufacturer , so GM adapted a customer loyalty program but only to deny a fix or repair at there own expense. This is definitely should fall under a manufacturer recall.

Filed Mar 24, 2025 · Electrical, Engine · VA

I was driving my truck and lost full power to the truck. Which happened as I was pulling out of a parking. The truck went into a limp mode. With the truck losing full power, it put my child and I into a safety risk. The truck got repaired at the dealership. The dealer was able to reproduce the issue. The truck was inspected at the dealership. Warning system did come on saying speed would be limited if (roughly 150 miles to a max 65mph). When I called another dealership, they said this was a normal thing for these trucks and chevy hasn't fixed it. I feel like if its a known issue with the wiring becoming free, why would they not proactively fix this issue before someone gets hurts from thinking they have the power to drive. The dealership that I took this too knew where to look right away as this is common.

Filed Feb 28, 2025 · Engine, Fuel system · KY

The Def system and turbo system. It will not let me tow nothing. And has started limited my speed to 65mph and says in 55 miles it will restrict to 55mph. I need my truck for work.

Filed Jan 13, 2025 · Engine, Fuel system · OR

Prior to 04/25/21 and 08/25/21 I was traveling 60mph on I-205 in the fast lane when my truck went into limp mode. I nearly caused an accident because the truck started shaking, all check engine lights illuminated, and it was challenging to navigate to the right lane and off the highway. This happened on two separate occasions. GM sent a letter dated August 2021 that my truck, "equipped with a 6.6L diesel engine, may have a condition that could cause the engine glow plugs to fail." The letter goes on to say that GM will cover this issue "within 15 years of the date your vehicle was originally placed in service or 150,000 miles (240,000 km), whichever occurs first, the condition will be repaired for you at no charge." GM charged me for the repair. The issue is the language in the letter and the word "condition". My interpretation is the "condition" that caused the glow plug to fail is what should be warranted. Nowhere in the GM's letter does is state the glow plugs may fail and we will only warranty glow plugs. What caused the glow plug(s) to fail was the electrical connector. The electrical connector is what caused the glow plug to fail. The glow plug by itself was not the "condition" that caused it to fail, the "condition" was a faulty electrical connector. GM must be held accountable to cover this safety defect. I have attached all documents pertaining to this incident. Please advise.

Filed May 31, 2024 · Engine · AZ

Defective sensor in the coolant overflow tank keeps bringing up false message of LOW COOLANT LEVEL. This recurring consistent alarm masks important vehicle information.

Filed Apr 26, 2024 · Engine · 72,000 miles · MD

The contact owns a 2019 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the low coolant warning light illuminated. The contact stated that the warning light had been reset daily; however, the warning light illuminated daily. The vehicle was taken to the dealer and diagnosed with a faulty coolant reservoir container. The contact was informed that the coolant reservoir needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the federal safety agency Hotline. The failure mileage was approximately 72,000.

Filed Oct 23, 2023 · Electrical, Engine · NC · fire · 1 injury

While trying to Jumpstart the battery the factory gm battery exploded send battery acid flying everywhere. Causing chemical burns. Ring Video available of incident.

Filed Sep 29, 2023 · Engine · 44,000 miles · CO

The contact owns a 2019 Chevrolet Silverado 2500. The contact stated while driving at various speeds, the vehicle lost motive power. The accelerator and brake pedals became inoperable. The check engine warning light was illuminated. Additionally, the engine power reduced message was displayed. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the failure was caused by a faulty oxygen sensor. The manufacturer was not made aware of the failure. The failure mileage was approximately 44,000. The VIN was not available.