Frequently Asked Questions

How much does a check engine light diagnostic cost for a 1996 Toyota Avalon?

• Initial diagnostic fees vary; at Nalley Toyota of Roswell we offer competitive diagnostic pricing and periodic service specials. A typical scan and basic inspection usually falls within an affordable, transparent range.
• Many causes are low-cost fixes (for example, an EVAP or gas cap issue), but some repairs like oxygen sensors or catalytic converters carry higher parts and labor costs.
• Working with our dealership often costs less than many independent shops because we combine factory tools, OEM parts and efficient diagnostics that reduce repeat repairs, delivering immediate and long-term savings.
• Any repair covered under warranty must be performed at a certified dealership to retain coverage; our factory-trained technicians will ensure warranty compliance and proper documentation.

What does it mean when the check engine light comes on in a 1996 Toyota Avalon?

• The light indicates the vehicle’s onboard diagnostic system has detected an emissions or drivability issue; codes can range from minor to serious.
• Common triggers include a loose gas cap, oxygen sensor faults, misfires, EVAP leaks, or catalytic converter inefficiencies.
• It signals that further diagnosis is needed — sometimes driving is safe, sometimes immediate attention is required, depending on symptoms and code severity.
• Bring the vehicle to Nalley Toyota of Roswell for factory-level diagnostics and repairs; using our certified service keeps warranty protection intact and often lowers long-term repair costs.

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

• Start with the simplest: check the gas cap for tightness and visible damage — a loose or damaged cap can trigger EVAP codes.
• Note how the vehicle drives: loss of power, rough idling, or stalling indicates more urgent attention and possible misfires.
• Schedule a diagnostic at Nalley Toyota of Roswell; our technicians use factory scan tools to read codes and recommend cost-effective repairs backed by OEM parts and warranty support.
• Remember: repairs covered under warranty must be performed at a certified dealership to protect coverage and future savings.

How long does a check engine light service take?

• Basic code reading and a visual inspection typically take 30–60 minutes, depending on appointment volume and symptoms.
• If further testing or repairs are needed (e.g., sensor replacement or smoke testing for EVAP leaks), service time can extend to a few hours or a full day.
• We prioritize efficient diagnostics with factory tools and trained technicians to reduce repeat visits and minimize downtime, delivering both immediate and long-term savings versus repeated independent repairs.
• For warranty repairs, scheduling at our certified dealership ensures correct procedures and documentation, which can affect timing but protects your coverage.