Check Engine Light & Diagnostics in Henderson
When the check engine light turns on, your vehicle’s onboard computer has detected a problem within the engine or emissions system.
At The Muffler Shop, our technicians use advanced diagnostic equipment to identify the cause of the warning light and recommend the proper repair.
Reach Us
Monday - Friday: 8:00 AM - 5:00 PM
What Causes the Check Engine Light to Turn On?
Common causes include:
- Oxygen sensor failure
- Catalytic Converter Repair needs
- EVAP system leaks
- Ignition coil problems
- Loose or faulty gas cap
- Emissions system faults
Some issues may also involve the vehicle’s Exhaust System Service components.
Our Diagnostic Process
Our technicians perform a detailed diagnostic process including:
- Computer code scanning
- Sensor and emissions system analysis
- Engine performance testing
- Visual inspection of engine components
Once the problem is identified, we explain the issue and recommend the appropriate repair.
Why Diagnostics Are Important
Replacing parts without proper diagnostics can lead to unnecessary repairs. Our technicians focus on identifying the root cause before recommending service.
In some cases, emissions problems identified during diagnostics may affect a Smog Check result.
Common Questions About Check Engine Lights
Can I drive with the check engine light on?
If the light is steady the vehicle may still be drivable, but it should be inspected soon. A flashing light requires immediate attention.
Will a check engine light cause a smog failure?
Yes. Most vehicles with an active check engine light will fail a Smog Check.
Can a loose gas cap cause a check engine light?
Yes. A loose or faulty gas cap can trigger the warning light.
How long does diagnostic testing take?
Most diagnostic inspections can be completed within about an hour depending on the issue.