2018 Chevrolet Silverado 1500 · symptom sheet
Check engine light or misfire
- 42owner reports
- 88,799median miles
- 0involved a crash
Newest report Jul 9, 2026 · checked Oct 2, 2026
202 of the 520 complaints on this car are about the engine. 42 of those describe misfire.
Tick what matches of 42 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: 2016, 2025, 2026.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the injectors (3 reports) and the sensor (3 reports).
Recalls and investigations
No recall on the engine covers the 2018 model year as of Oct 2, 2026.
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.
None of these investigations covers the 2018 model year.
When it happens
The middle half of failures fell between 35,000 and 110,000 miles, from the 22 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 30 service bulletins or notices for the 2018 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 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 ...
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated.
26 more on the 2018 Chevrolet Silverado 1500 page.
What owners wrote
“Service Trailer Brake System message appears and disappears constantly, check engine light.”
Filed Nov 28, 2022
“Faulty injector connectors get a loose connection and make truck shutter and check engine light come on . This has happened 3 times already and had to replace one faulty plug . This is all over the internet from other l5p owners. Yet gmc want do anything”
Filed Sep 26, 2022
“On Saturday the check engine light came on then Sunday it flashed service restraint system soon dash lights came on clicked and lights stayed on about a memory then went off truck wouldnât start on Sunday night no lights on dash worked”
Filed Nov 2, 2021
Should you keep driving it?
This page can't tell you that. 0 of 42 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
- Brakes grind, pulse or wear early 99 reports
- Transmission shudders, slips or shifts hard 62 reports
- Engine stalls or loses power while driving 57 reports
- Infotainment, screen or backup camera fails 33 reports
- Transmission fails or needs replacement 32 reports
- Suspension noise, struts or alignment 32 reports
- Engine failure, knocking or rod bearing 25 reports