2016 Chevrolet Silverado-1500 Check Engine Light

It means your truck’s OBD-II system stored a diagnostic trouble code (DTC) in an emissions-related system.

The light indicates the Silverado’s computer detected a fault and saved data to help pinpoint the issue. At Larry H. Miller Chevrolet Murray in Murray, UT, we connect GM factory scan tools to read codes and freeze-frame data, then test the affected circuit or component. A steady light suggests a non-urgent fault; a flashing light signals a misfire that can damage the catalytic converter.

• Codes (DTCs) identify the affected system, not a guaranteed failed part.
• We review freeze-frame data to replicate conditions that set the code.
• Schedule a diagnostic: book your appointment.

Common causes include EVAP leaks (loose gas cap or small leak), oxygen sensor faults, MAF sensor issues, misfires, or catalytic converter efficiency codes.

These systems are sensitive to Utah’s temperature swings and altitude, which can reveal small leaks or airflow variances. Our technicians in Murray verify the root cause with smoke testing for EVAP concerns, live data analysis for O2 and MAF sensors, and ignition/fuel checks for misfires. Addressing issues early helps maintain fuel economy and protect the converter.

• EVAP small leak (often P0442) may follow cap or hose issues.
• O2 sensor aging can skew fuel trims and trigger rich/lean codes.
• Misfires risk converter damage if driven under load.

A steady light means drive cautiously to service, but a flashing light indicates a severe misfire—stop driving to avoid catalytic converter damage.

If the light is steady and the truck runs normally, reduce load and schedule a diagnostic soon. If it flashes or you notice rough running, towing prevents overheating the converter and potential engine damage. In Murray, our team can quickly confirm whether it’s safe to continue driving after a code scan and preliminary checks.

• Flashing = urgent misfire; arrange towing and schedule service.
• Steady = plan a prompt diagnostic and limit heavy loads.
• Check for a loose gas cap after refueling and recheck the light.

Parts stores read generic OBD-II codes, while our GM factory scan tools access module-specific data and run guided tests to find the underlying cause.

A single code can have multiple root causes; guessing based on a code reader often leads to unnecessary parts. Our OEM-certified technicians in Murray perform isolation testing, verify repairs with live data, and provide a written estimate before work begins. This approach helps fix the problem once and protects emissions components.

• Factory software reads proprietary data and mode $06 results.
• We perform smoke tests, circuit checks, and road tests as needed.
• Review service specials before you book.

No—resetting clears readiness monitors, and Utah’s OBD-II test fails vehicles until monitors complete normal drive cycles.

Clearing codes erases stored data the test checks to confirm system health. Your Silverado must finish specific drive routines without faults before monitors show “ready.” Instead of clearing the light, have the fault diagnosed and repaired in Murray so monitors can set properly and you can pass emissions with confidence.

• Monitors include EVAP, O2 sensor, catalyst, misfire, and more.
• Drive cycles can take multiple trips and conditions to complete.
• Fix the root cause, then verify readiness with a scan tool.

A flashing light indicates an active misfire that can overheat and damage the catalytic converter within minutes under load.

If the light flashes, safely pull over and arrange service in Murray to prevent costly converter or engine damage. Our technicians will scan for misfire counters, inspect ignition and fuel delivery, and evaluate compression if needed. Prompt diagnosis protects performance and helps avoid a chain reaction of additional codes.

• Do not tow or haul; reduce load immediately.
• Schedule a diagnostic now: book online.
• Review current service specials before you arrive.

For a 2016 Chevrolet Silverado-1500, our diagnostic process starts with a GM factory OBD-II scan to capture DTCs and freeze-frame data. We discuss symptoms, verify the concern, and perform targeted isolation testing—this can include visual inspections, smoke testing for EVAP leaks, circuit and sensor checks, and a controlled road test. Findings are documented with scan screenshots or measurements, and you receive a clear, written estimate before any repair. If additional authorization is needed, we explain options and expected outcomes. This structured approach avoids guesswork, helps protect emissions components, and supports a first-time fix. Ready to proceed? Schedule service and we’ll confirm your appointment by email or text.

Larry H. Miller Chevrolet Murray serves the greater Salt Lake City area, including South Jordan, West Jordan, Midvale, and Sandy. Utah’s temperature swings can trigger EVAP and cold-start codes; our GM factory scan tools see live data and proprietary tests that universal readers miss. Whether your 2016 Chevrolet Silverado-1500 shows a steady light after refueling or a flashing misfire under load, our OEM-certified team isolates the true cause and verifies the repair. We’re conveniently located at 5500 S State St, Murray, UT 84107 for quick access from I-15. Have questions or need directions? Schedule your appointment online and we’ll follow up with details.

Owners of the 2016 Chevrolet Silverado-1500 often encounter OBD-II codes such as P0442 (EVAP small leak), which typically points to a loose gas cap or a small hose/fitting leak; P0101 (MAF performance), commonly tied to airflow discrepancies or sensor contamination; P0137/P0157 (O2 sensor circuit low), indicating a slow or weak downstream oxygen sensor; P0300 (random misfire), which can stem from ignition, fuel delivery, or compression; and P0420 (catalyst efficiency below threshold). Ignoring EVAP leaks can lead to recurring lights and failed inspections; postponing misfire or catalyst faults risks converter damage, higher repair costs, and poor fuel economy. Bring your 2016 Chevrolet Silverado-1500 to Larry H. Miller Chevrolet Murray in Murray for an accurate diagnosis — schedule service.