2021 Chevrolet Silverado 1500 · symptom sheet
Engine misfire
- 46owner reports
- 26,000median miles
- $2,200median quote
- 1involved a crash
Newest report Sep 17, 2026 · checked Oct 2, 2026
46 of the 168 reports of misfire on the 2021 Silverado 1500 describe misfire.
Part of Check engine light or misfire (168 reports)
Tick what matches of 46 reports
Misfire on other Silverado 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2017, 2018, 2020, 2022, 2023, 2024, 2025, 2026.
What got replaced
Owners who name the part that was replaced mention the spark plugs (7 reports), the injectors (5 reports) and the ignition coils (3 reports).
Recalls and investigations
One recall on the engine covers the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.
The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
NHTSA investigations into the engine on the Silverado 1500
Loss of motive power due to engine failure post recall remedy. Open.
Loss of motive power due to engine failure post recall remedy. Closed aug 20, 2026.
Loss of motive power due to engine failure. Open.
Loss of motive power due to engine failure. Closed oct 23, 2025, led to recall 25V-274.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Non-crash engine compartment fires. Closed sep 8, 2008, led to recall 08V-441.
Non-crash engine compartment fires. Closed jun 12, 2008.
Crank position sensor failure - stall. Closed sep 14, 2006.
What owners paid
5 of the 46 reports quote a price. Each dot is one quote. The middle half runs $200 to $5,000.
When it happens
The middle half of failures fell between 13,000 and 60,000 miles, from the 23 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 12 service bulletins or notices for the 2021 Chevrolet Silverado 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This bulletin advises the tech that the Exhaust Roller Follower may be the issue with the engine Ticking noise, misfire or rough run and what to replace if found the cause.
This technical bulletin provides repair information to correct a customer concern of Charge Air Cooler (CAC) Icing, Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set.
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce ...
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to ...
8 more on the 2021 Chevrolet Silverado 1500 page.
What owners wrote
“Check engine light flashes when pulling a load and accelerating above 50mph. Check engine light code is PO300 Random multiple misfires. Took it to the shop and there weâre currently no active misfires.”
Filed Jun 21, 2026
“Had vehicle in for service for oil change and a loud clicking noise as well as misfire was the vehicle was fine to drive proceeded on my trip on my way back to my hometown the motor through a pushrod while on the highway”
Filed Mar 3, 2025
“I brought in vehicle for check engine light is on for p0300 / p0308 had misfire tech removed engine valve cover and determine no movement in valve train components tech determine valve train failure lifters possible camshaft we would need to remove the cylinder head and replace valve train lifters.”
Filed Jan 28, 2025
“At start up check engine light, service esc, service parking brake. Code reader shows code P0304 misfire cylinder number 4.”
Filed Jan 23, 2025
Should you keep driving it?
This page can't tell you that. 1 of 46 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Engine failure, knocking or rod bearing 176 reports
- Engine stalls or loses power while driving 121 reports
- Transmission shudders, slips or shifts hard 95 reports
- Brakes grind, pulse or wear early 44 reports
- Engine overheats or leaks coolant 30 reports
- Engine rattles or ticks 30 reports
- Transmission fails or needs replacement 28 reports
- Power steering cuts out or goes heavy 26 reports
- Tailgate or liftgate will not open or close 26 reports