Frequently Asked Questions

What does it mean when the check engine light comes on in a 2012 Ford Mustang V6?

• It signals your vehicle's onboard diagnostics detected an issue — anything from a loose gas cap to an oxygen sensor, ignition misfire, or catalytic converter concern.
• Immediate diagnostics at Larry H. Miller Ford Lakewood in Lakewood, CO pinpoints the trouble with factory-grade scanners and certified technicians to avoid unnecessary repairs.
• Our diagnostics often cost less than independent shops while delivering factory-trained expertise, OEM parts, and transparent estimates that protect long-term value and fuel economy.
• If repairs are covered under warranty, they must be performed at a certified dealership to maintain coverage and ensure correct OEM parts and procedures.
• We offer service financing so you can get the right fix now and pay over time — to schedule service, click the link and choose a convenient time.
• Check current offers before you visit via our service specials to maximize immediate savings.

How long does a check engine light service take?

• Diagnostics typically take 30–90 minutes depending on symptoms and drive-cycle history; some codes require a short test drive to replicate conditions.
• Minor fixes — like tightening a gas cap or replacing a sensor — can be completed the same day. More involved repairs that require parts may take longer, but we communicate accurate timelines up front.
• Larry H. Miller Ford Lakewood provides efficient, certified service lanes, OEM parts, and prioritized scheduling so you spend less time waiting and more time driving safely.
• Because we combine fast diagnostics with factory warranty knowledge, you often save both immediately and over time by preventing escalation of issues that reduce fuel economy or damage the engine.
• To book a fast, reliable appointment, schedule appointment online or check our service specials before you come in.
• Remember, repairs covered under warranty must be performed at a certified dealership to preserve protection and guarantee OEM parts and procedures.

How much does a check engine light diagnostic cost for a 2012 Ford Mustang V6?

• Diagnostics typically start at competitive rates. At Larry H. Miller Ford Lakewood our diagnostic pricing is designed to be transparent and often costs less than independent shops while delivering higher OEM-standard service.
• We emphasize immediate and long-term savings — an accurate dealership diagnosis avoids unnecessary parts replacement and ensures repairs extend vehicle life and fuel efficiency.
• Available service specials and service financing options help make repairs affordable now while protecting resale and reliability down the road.
• For precise pricing and current offers, contact our service center or schedule service online for a timed diagnostic appointment.
• If a repair is covered under warranty, having it done at our certified dealership ensures proper parts, procedures, and continued warranty coverage.

What is the most common reason for check engine light on a 2012 Ford Mustang V6?

• Common causes include a loose or damaged gas cap, faulty oxygen sensors, ignition coil or spark plug issues, and intermittent misfires; these issues affect performance and fuel economy.
• Addressing the cause quickly at Larry H. Miller Ford Lakewood preserves engine health and prevents more costly repairs like catalytic converter replacement or engine damage.
• Our certified technicians diagnose with OEM tools and recommend only necessary repairs, which typically yields lower total ownership costs and better long-term reliability.
• Service financing and ongoing service specials help manage immediate expenses while protecting long-term value.

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

• Start with a quick visual check: ensure the gas cap is tightened, inspect for obvious signs like low oil or leaks, and note any changes in performance or sounds.
• If the light persists, bring your 2012 Ford Mustang V6 to Larry H. Miller Ford Lakewood for a professional scan — our certified technicians will provide a clear diagnosis and repair plan.
• We offer transparent estimates, OEM parts, and the option to use service financing so you can get necessary repairs done promptly without compromising quality.
• To avoid escalation and protect warranty coverage, always have warranty-related repairs completed at a certified dealership and consider checking our current service specials before you visit.