Frequently Asked Questions

What does it mean when the check engine light comes on in a 2015 Ford F-350 Super Duty?

• It signals that the vehicle's onboard diagnostics have detected an emissions, fuel, ignition, or sensor fault that needs attention.
• At David McDavid Ford in TX we run a full diagnostic, including battery and charging system checks, to pinpoint the cause and avoid cascading failures.
• Repairing issues early at our service center often costs less than waiting — immediate savings on parts and labor and long-term savings through improved fuel economy and prevented damage.
• Warranty repairs must be completed at a certified dealership to preserve coverage; our technicians are factory-trained to protect your warranty.
• We offer service financing and convenient online options — schedule service to get started and check current service specials.

How long does a check engine light service take?

• Most diagnostics are completed within 45–90 minutes, depending on the issue and whether additional tests or parts are required.
• If a battery, sensor, or component replacement is needed, we provide an accurate estimate and fast turnaround using OEM parts to ensure reliability.
• David McDavid Ford prioritizes efficiency with certified technicians and modern diagnostic tools — immediate and long-term savings come from expert repairs done right the first time.
• Book online to reduce wait time: schedule appointment. Ask about our service financing and available service specials.

How much does a check engine light diagnostic cost for a 2015 Ford F-350 Super Duty?

• Diagnostic pricing varies by the checks required; at David McDavid Ford we provide transparent pricing and a clear estimate before any repairs begin.
• Our dealership often costs less than independent shops while delivering higher-value service — certified technicians, OEM parts, and warranty coverage create immediate and long-term savings.
• If covered under warranty, repairs must be done at a certified dealership to maintain coverage; we’ll advise on warranty eligibility during diagnosis.
• We offer service financing to help you complete necessary repairs now and pay over time. To get a diagnosis, schedule service today and review our service specials.

What is the most common reason for check engine light on a 2015 Ford F-350 Super Duty?

• Common causes include faulty oxygen sensors, loose gas caps, misfires, exhaust issues, and battery/charging system problems — we always inspect the battery and charging circuit for heavy-duty trucks.
• Left unaddressed, these issues can reduce fuel efficiency, increase emissions, and cause expensive engine or transmission damage.
• At David McDavid Ford, our certified technicians provide precise diagnostics and recommended repairs to maximize longevity and value for your 2015 Ford F-350 Super Duty.
• Schedule an inspection and ask about our competitive pricing and service financing: schedule appointment. Check current service specials.

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

• Start with basic checks: confirm the gas cap is secure and test the battery/charging system; a weak battery can trigger multiple fault codes.
• At David McDavid Ford we run a complete scan, battery load test, and visual inspection to identify immediate safety concerns and prevent further damage.
• Choosing dealership service provides transparent estimates, OEM parts, certified technicians, and warranty protection — immediate and long-term savings in reliability and resale value.
• Ready for a professional check? Schedule service and review our service specials. We also offer service financing so you can address repairs now and pay later.