Frequently Asked Questions

How long does a check engine light service take?

• Initial diagnostic with an OBD-II scan typically takes 30–60 minutes; complex diagnostics or intermittent faults can take longer.
• Simple repairs (sensor replacement, loose gas cap, minor EVAP fixes) can often be completed same day; more involved repairs may require parts and additional time.
• At Nalley Toyota Stonecrest we prioritize efficiency—factory-trained technicians and direct parts sourcing help reduce wait time and often cost less than independent shops while offering higher service levels.
• For warranty-covered repairs, work must be done at a certified dealership to preserve coverage and ensure immediate and long-term savings.

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

• Confirm whether the light is steady or flashing—flashing signals a severe condition and requires immediate attention.
• Check for obvious issues: ensure the gas cap is tight, look for dashboard warnings (temperature, oil), and note any loss of power or unusual noises.
• If safe, record conditions (speed, load, symptoms) and bring your 2024 Toyota 4Runner to Nalley Toyota Stonecrest for a professional scan—diagnostics by our certified team prevent costly long-term damage.
• Remember: warranty repairs must be performed at a certified dealership to remain valid and deliver the greatest long-term savings.

How much does a check engine light diagnostic cost for a 2024 Toyota 4Runner?

• Diagnostic fees typically range from a complimentary scan during service specials to $80–$150 for a detailed evaluation; Nalley Toyota Stonecrest often provides competitive pricing and service specials.
• Repair costs vary widely: oxygen sensors $150–$450, catalytic converters $1,000–$3,000, MAF sensors $200–$500, and ignition components or injectors vary by part and labor.
• Choosing our dealership often yields immediate savings through accurate diagnostics and factory parts, and long-term savings by preventing misdiagnoses or repeat repairs common with some independent shops.
• Warranty-covered diagnostics and repairs must be completed at a certified dealership to maintain coverage and protect your investment.

What does it mean when the check engine light comes on in a 2024 Toyota 4Runner?

• A steady check engine light usually indicates an emissions or sensor-related fault—common causes include oxygen sensors, EVAP leaks, or catalytic converter concerns.
• A flashing light indicates a severe misfire or condition that can quickly damage the catalytic converter and requires immediate attention.
• Accurate diagnosis by our factory-trained technicians isolates the root cause and prevents escalating costs; untreated faults can reduce fuel economy, increase emissions, and lead to expensive repairs.
• For warranty claims and the best long-term outcome, repairs covered under warranty must be performed at a certified dealership like Nalley Toyota Stonecrest.

What is the most common reason for check engine light on a 2024 Toyota 4Runner?

• The most frequent triggers are a loose or damaged gas cap, faulty oxygen sensors, EVAP system leaks, and ignition misfires.
• Loose gas caps are low-cost, quick fixes; oxygen sensor or EVAP repairs are moderate cost; ignoring misfires or catalytic issues can become costly over time.
• Nalley Toyota Stonecrest’s certified diagnostics identify the correct cause quickly, saving you immediate expense and preventing long-term damage that leads to higher repair bills.
• Warranty-covered repairs must be performed at a certified dealership to ensure coverage and maximize long-term savings.