2016 Ford Explorer Check Engine Light in Lakewood, CO

It means the powertrain control module stored an OBD-II fault code indicating an issue in a monitored system.

Your 2016 Ford Explorer uses sensors to track engine and emissions performance; when values fall outside expected ranges, a code is set and the light turns on. A loose gas cap, EVAP leak, misfire, or sensor fault are common triggers. Proper diagnosis identifies the affected system and the underlying cause, not just the code.

• OBD-II code points to a system (e.g., EVAP, ignition, fuel, exhaust)
• Freeze-frame data shows conditions when the fault occurred
• Steady vs. flashing light helps gauge urgency

The five most common causes are EVAP leaks, oxygen sensor faults, mass air flow issues, misfires, and catalytic converter efficiency codes.

On the 3.5L V6 Explorer, a loose or failing gas cap can set EVAP codes, while aging O2 sensors can skew fuel trim. Dirty MAF sensors and ignition component wear may lead to misfires, which, if ignored, can overheat and damage the catalytic converter. Targeted testing prevents unnecessary parts replacement.

• EVAP: loose cap or small system leak
• O2/AFR sensors affecting fuel control
• Misfire from plugs, coils, or fuel delivery

A steady light means drive cautiously to service; a flashing light signals a severe misfire—stop driving to prevent catalytic converter damage.

If the light is steady and the SUV runs normally, limit trips and schedule diagnostics soon. If it flashes, continuing to drive can overheat the converter and increase repair costs. Note any drivability symptoms (rough idle, loss of power, hesitation) and share them when you arrive.

• Flashing light = potential misfire and raw-fuel damage
• Reduce load and avoid highway speeds if steady
• Document recent fuel-ups or changes (e.g., E85 use)

A parts store reads a basic code; dealer diagnostics find the root cause using Ford factory scan data and guided testing.

One code can have multiple causes—our Ford-specific tools access live data, mode-6 results, and manufacturer tests that generic readers can’t. You’ll receive isolation testing and a written estimate before any repair. This approach prevents guesswork and repeat visits.

• Factory scan tools and service information
• System-specific tests to confirm the fault
• Written estimate before repairs begin

No—resetting clears monitors; most emissions tests require readiness monitors to be complete, so a quick reset usually fails.

After clearing codes or disconnecting the battery, your Explorer must complete drive cycles so onboard tests can run. If the underlying fault remains, the light will return or monitors won’t set. Fixing the cause and verifying monitor readiness is the reliable path to compliance.

• Readiness monitors must show “complete”
• Drive cycles vary by system and conditions
• Diagnose and repair before testing

A flashing light indicates an active misfire severe enough to damage the catalytic converter if you keep driving.

Pull over safely and arrange service; raw fuel can overheat the converter and raise repair costs. Our Lakewood team can inspect ignition components, fuel delivery, and compression on the 3.5L V6 to isolate the misfire quickly. Use our online tool to book the next available time.

• Stop driving and limit engine load
• Check for rough running or loss of power
• Schedule service promptly

Many 2016 Ford Explorer engine lights trace to familiar OBD-II codes. EVAP system codes (such as small leak) often point to a loose gas cap or minor vacuum leak. Oxygen sensor and fuel-trim codes can indicate aging sensors or exhaust leaks. Misfire codes (cylinder-specific or random) may involve spark plugs, ignition coils, or injector issues. Catalytic converter efficiency codes signal that the converter is not treating exhaust effectively, sometimes due to long-term misfires. Ignoring misfire or converter codes can overheat and damage the catalytic converter, raising repair costs significantly. Bring your 2016 Ford Explorer to Larry H. Miller Ford Lakewood in Lakewood for an accurate diagnosis — schedule service.

Larry H. Miller Ford Lakewood serves drivers across the Denver metro, including Lakewood, Denver, Littleton, Golden, Arvada, Aurora, and Westminster. For the 2016 Ford Explorer, our Ford-capable scan tools read manufacturer data that generic readers can’t, helping us pinpoint faults in the 3.5L V6, EVAP, ignition, and emissions systems. Seasonal temperature swings and altitude can influence cold starts and fuel-trim behavior, so we review freeze-frame data and live PIDs under local conditions. Visit us at 11595 West 6th Avenue, Lakewood, CO 80215, or use our online portal to plan your visit. For current offers, see our service specials; to book, use our schedule service tool.

Our process for the 2016 Ford Explorer is designed to find the root cause before any repair begins. We start with an initial OBD-II scan and capture freeze-frame data. A visual inspection checks connectors, vacuum lines, and common fault points on the 3.5L V6. We then perform isolation testing as indicated—such as smoke testing EVAP, verifying ignition with coil and plug checks, or monitoring fuel-trim and O2 sensor activity. You receive a written estimate and explanation before work proceeds. If youre looking to plan your visit, review service specials and schedule service online.