Frequently Asked Questions

What does it mean when the check engine light comes on in a 2013 Ford Expedition?

• It signals the vehicle’s onboard diagnostics (OBD) detected an issue. Codes range from emissions components to ignition and sensor faults; a quick diagnostic identifies the exact cause.
• At Larry H. Miller Ford Mesa in Mesa, AZ we provide fast, factory-grade diagnostics so you know if it’s a simple fix like a loose cap, a weak battery, or a more involved repair that affects fuel economy and longevity.
• We often cost less than independent shops while offering OEM parts, certified technicians, and immediate and long-term savings from correct repairs and warranty-backed service.
• To address the problem now and avoid further damage, schedule service with our certified team; ask about service financing to pay over time.

How long does a check engine light service take?

• Diagnostics typically take 30–60 minutes depending on code complexity; simple resets and battery checks can be completed quickly during a single visit.
• If additional repairs or parts are required, our advisors will provide a clear estimate and timeline; many common fixes are completed the same day at Larry H. Miller Ford Mesa.
• We recommend checking for available service specials before your visit to maximize value, and remember repairs covered under warranty must be performed at a certified dealership to remain valid.
• You can easily schedule appointment online and take advantage of service financing to get necessary work done immediately.

How much does a check engine light diagnostic cost for a 2013 Ford Expedition?

• Diagnostic pricing varies by issue, but our transparent estimates explain immediate costs and long-term savings from proper repairs; we frequently provide more value than independent shops while using OEM parts and certified technicians.
• When appropriate, we’ll pair diagnostics with battery and charging system checks—weak batteries or charging faults can trigger engine codes and shorter-term repairs often prevent costly follow-up work.
• Ask about current service specials and our service financing options so you can get repairs done now and pay over time.

What is the most common reason for check engine light on a 2013 Ford Expedition?

• Common causes include loose gas caps, oxygen sensors, catalytic converter issues, mass airflow sensors, ignition misfires, and occasionally battery/charging problems that cause voltage irregularities.
• At Larry H. Miller Ford Mesa our technicians use OEM-level tools to pinpoint the exact P-code, explain the impact on fuel economy or emissions, and recommend the most cost-effective repair plan.
• Maintaining timely service with certified techs protects vehicle value and can produce long-term savings through improved efficiency and fewer unexpected repairs.

What is the first thing to check when the check engine light comes on?

• Check that the gas cap is properly tightened; it’s a common and inexpensive fix. If the light persists, a professional diagnostic is the next step.
• Our team at Larry H. Miller Ford Mesa will perform a full battery and charging check, scan the OBD system, and provide a clear estimate that emphasizes transparency and vehicle longevity.
• To book an inspection and take advantage of warranty-protected repairs and service financing, schedule service online today.

Check Engine Light Flashing

The sight of a flashing check engine light in your 2013 Ford Expedition signals an active misfire or severe condition that can damage the catalytic converter if driven. This is an urgent indicator—do not ignore it. At Larry H. Miller Ford Mesa in Mesa, AZ, our factory-trained technicians prioritize safety and rapid diagnosis using OEM-grade scanners and test equipment. We check ignition components, fuel delivery, emission sensors, and the battery/charging system because low voltage or failing batteries can produce electrical anomalies that worsen engine performance. Choosing our dealership gives you transparent estimates, genuine Ford parts, and the reassurance that any warranty-covered repairs are handled correctly. Take advantage of our rotating service specials to reduce cost and ask about service financing to spread payments. If your check engine light is flashing, contact us immediately or schedule service online to prevent further damage and restore dependable operation.

2013 Ford Expedition Check Engine Light Reset

Resetting the check engine light on a 2013 Ford Expedition is straightforward with the right tools, but a reset without diagnosis can mask issues that lead to bigger failures. At Larry H. Miller Ford Mesa we recommend a full diagnostic first: we read and interpret OBD-II codes, perform battery and charging checks, and clear codes only after addressing root causes. That approach preserves warranty coverage, ensures OEM parts are used when needed, and protects long-term value. Our technicians explain repairs in plain language, provide written estimates, and often complete common fixes the same day. Using dealership service often results in immediate savings and longevity benefits compared with short-term fixes. Before leaving, we retest systems to confirm repairs and show you the results. To benefit from transparent service, OEM parts, and certified technicians, review our service specials and schedule appointment now.

2013 Ford Expedition Check Engine Light Codes

Common OBD-II codes for a 2013 Ford Expedition include P0171/P0174 (lean conditions), P0300-P0306 (misfires), P0420 (catalyst efficiency), and P0130-P0167 (oxygen/air-fuel sensor issues). Left unaddressed, these faults can reduce fuel economy, cause drivability problems, and lead to expensive catalytic converter replacements. At Larry H. Miller Ford Mesa in Mesa, AZ we diagnose each code to determine if the issue stems from sensors, fuel or ignition systems, or from battery/charging irregularities that affect engine management. Our service process emphasizes convenience—clear communication, OEM parts, certified technicians, and warranty-backed repairs. We often deliver better value than independent shops thanks to correct repairs that avoid repeat visits. Check our service specials and schedule service to get a prompt, professional diagnosis and protect your Expedition’s performance and resale value.