2013 Chevrolet Impala Check Engine Light in Murray, UT

It means the Impala’s OBD-II system stored a diagnostic trouble code—such as P0442 (small EVAP leak) or P0300 (random misfire).

Your car’s computer flags a fault, saves freeze‑frame data, and turns on the MIL to alert you. In Murray and the greater Salt Lake City area, temperature swings and cap sealing issues can trigger EVAP-related codes. Our team at Larry H. Miller Chevrolet Murray uses GM factory tools to read code definitions and live data, then confirms root cause before repair. You can schedule service online anytime.

• Common Impala codes: P0442/P0455 (EVAP), P0300 (misfire), P0420 (catalyst efficiency)
• Try tightening the gas cap until it clicks; if light stays on, book diagnostics
• Addressing faults promptly helps maintain fuel economy and emissions readiness

Top causes include O2 sensor faults (P0133), EVAP system leaks (P0442/P0455), MAF range issues (P0101), catalytic converter efficiency (P0420), and misfire (P0300).

The 2013 Chevrolet Impala’s 3.6L V6 flex‑fuel engine (engine code 6VNAF3.6) monitors air/fuel and emissions closely. Small EVAP leaks are common and often need smoke testing; misfires can damage the catalytic converter if ignored. Our OEM‑trained techs perform isolation tests to distinguish sensor failure from wiring or vacuum faults. Check our service specials before you schedule.

• 3.6L V6 flex‑fuel: watch for P0101 (MAF) and P0171 (lean) after filter or intake work
• EVAP faults may follow temperature swings or a loose/damaged gas cap
• Misfire left unchecked can overheat and ruin the catalytic converter

A steady light means you can drive cautiously to service, but a flashing light signals a misfire—stop driving to prevent catalytic converter damage.

If performance feels normal and the light is steady, reduce load and head to our Murray location for a prompt diagnostic. A flashing MIL indicates raw fuel may be reaching the catalyst, which can overheat and fail. Use our scheduler for the earliest appointment. If the car runs rough or stalls, consider arranging a tow.

• Flashing MIL = misfire; risk of costly catalyst damage
• Steady MIL = drive gently to diagnosis; avoid hard acceleration
• Document symptoms (cold start, highway, hills) to speed troubleshooting

A free scan reads basic codes, while our GM factory tools access Chevrolet‑specific data, freeze‑frame, Mode 6, and bi‑directional tests to find root cause.

Code readers point to systems; dealer diagnostics confirm the actual failed component or condition. Our OEM‑certified technicians perform isolation testing, verify repairs, and provide a written estimate before work. Genuine Chevrolet parts ensure proper fit and lasting performance. Check service specials and schedule at your convenience.

• GM factory scan capability + technical service bulletins (TSBs)
• Pinpoint testing rules out wiring, sensor, or mechanical faults
• Written test plan and estimate before any repair begins

No—clearing codes sets OBD readiness monitors to “Not Ready,” which typically fails an OBD‑based emissions test until drive cycles complete.

Emissions programs check both active codes and readiness status. After clearing, your Impala must complete specific drive cycles so the ECM can re‑test systems like EVAP and O2 sensors. The fastest path is fixing the fault, confirming monitors are “Ready,” and then testing. We can verify readiness during your visit—just schedule service.

• “Not Ready” monitors usually trigger a test refusal/fail
• Proper repair + verified monitors = higher pass likelihood
• Ask for a readiness check before heading to inspection

Most diagnostics are completed in a single appointment, from the initial OBD‑II scan to a written estimate.

Time varies with the fault: some issues are confirmed quickly, while intermittent or EVAP leaks may require additional isolation tests or a smoke test. If parts or extended road tests are needed, we’ll update you before proceeding. Use our online system to schedule an appointment that fits your day at 5500 S State St in Murray.

• Bring notes on symptoms (cold start, rain, highway) to speed testing
• Arrive with at least 1/4 tank of fuel for accurate EVAP diagnostics
• We provide a written estimate before any repair

We diagnose the 2013 Chevrolet Impala with GM factory scan tools and OEM procedures for drivers in Murray and the greater Salt Lake City area—South Jordan, West Jordan, Midvale, and Sandy. Unlike basic code readers, our process evaluates code definitions, freeze‑frame conditions, Mode 6 data, and live sensor streams to separate symptoms from causes. Utah’s temperature swings can highlight EVAP small‑leak conditions and cold‑start misfires, so we validate findings with smoke testing and road tests when indicated. You’ll receive a clear test plan, verified results, and a written estimate before any repair. Have questions or need directions? Visit us at 5500 S State St, Murray, UT 84107, check service specials, or schedule service online.

Our diagnostic process for the 2013 Chevrolet Impala is structured and transparent. We begin with an initial OBD‑II scan to capture stored and pending codes, plus freeze‑frame data that shows the exact conditions when the fault set. Next, a visual inspection and functional checks verify basics—connections, vacuum lines, and integrity. We perform isolation testing as needed (e.g., smoke test for EVAP leaks, sensor circuit tests, fuel and ignition checks) to confirm the true root cause. Findings are documented, and you’ll receive a written estimate before any repair decision. If you’re monitoring costs, review our current service specials. Ready to move forward? Use our online system to schedule service at your convenience.

Several fault patterns show up frequently on the 2013 Chevrolet Impala. EVAP system leaks (P0442 small leak, P0455 large leak) often stem from cap or hose issues; delaying repairs can keep monitors “Not Ready” and lead to a failed emissions test. Oxygen sensor and circuit performance (P0131/P0133) or MAF range (P0101) can cause poor fuel economy. Catalyst efficiency (P0420) may follow prolonged misfire (P0300), and ignoring it can lead to an expensive catalytic converter replacement. Addressing codes promptly prevents secondary damage and restores drivability. Bring your 2013 Chevrolet Impala to Larry H. Miller Chevrolet Murray in Murray for an accurate diagnosis — schedule service.