Frequently Asked Questions

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

• Inspect the gas cap first — a loose or damaged cap is a common, easy fix that can trigger the light.
• Check immediate symptoms: rough idle, loss of power, smoke, or strange noises; these change urgency.
• Look for obvious fluid leaks or disconnected hoses under the hood.
• If you see severe symptoms, stop driving and bring your 2005 Toyota Tundra to Nalley Toyota of Roswell for a prompt diagnosis.
• Remember: warranty-covered repairs must be completed at a certified dealership to preserve coverage.

How long does a check engine light service take?

• Typical diagnostic scan at our dealership takes 30–60 minutes to read codes and gather live data.
• Simple repairs like a loose gas cap or O2 sensor replacement can be completed the same day.
• More complex issues (misfires, catalytic converter failures) may require parts ordering and 1–3 days for repair.
• We communicate realistic timelines and prioritize factory-correct repairs using OEM parts.
• Choosing our dealership often means faster turnaround and lower long-term costs due to right-first-time service by factory-trained techs.

What is the most common reason for check engine light on a 2005 Toyota Tundra?

• Common causes include oxygen sensor failure, misfires (spark plugs or coils), and EVAP leaks such as a loose gas cap.
• O2 sensor and catalytic efficiency codes are frequent on aging trucks and affect emissions and fuel economy.
• Minor issues are inexpensive if addressed promptly; neglected problems can lead to costly secondary damage.
• Our factory-trained technicians diagnose the root cause to prevent repeat visits and protect your warranty when applicable.
• We often cost less than independent shops over time by combining accurate diagnostics, OEM parts, and warranty protection.

What does it mean when the check engine light comes on in a 2005 Toyota Tundra?

• The light means the vehicle’s onboard diagnostics detected a fault — from minor emissions issues to critical engine problems.
• Codes range from EVAP system leaks to misfires, sensor failures, or catalytic converter concerns; each code guides repair steps.
• A steady light typically indicates a non-urgent issue; a flashing light signals a severe problem that needs immediate attention.
• We recommend prompt diagnostics at Nalley Toyota of Roswell to protect performance, fuel economy, and long-term value.
• For any warranty-covered repair, work must be performed at a certified dealership to retain coverage and long-term savings.

How much does a check engine light diagnostic cost for a 2005 Toyota Tundra?

• Diagnostic scan fees at our dealership are typically competitive; many scans start in a modest, transparent range and may be waived with repair.
• Minor fixes (gas cap, basic sensor) often cost under a few hundred dollars including parts and labor.
• Repairs such as coil or catalytic converter replacement vary: coils and spark parts can range a few hundred; catalytic converters can be over a thousand.
• Choosing Nalley Toyota of Roswell often yields immediate and long-term savings versus independent shops thanks to accurate diagnostics, OEM parts, and factory-trained technicians.
• Remember: warranty-covered repairs must be performed at a certified dealership to preserve coverage and avoid unexpected expense.