Chevrolet Diagnostics & Check Engine Light in Memphis, TN
An illuminated Check Engine light or warning indicator can signal anything from a loose gas cap to a complex engine, transmission, or emissions fault. Trust the Chevrolet Certified Service technicians at Jim Keras Chevrolet in Memphis to perform factory digital diagnostic scanning, pinpoint root causes, and recommend precise repairs.
Current Chevrolet Diagnostic Offers
View available Jim Keras Chevrolet diagnostic specials and service discounts.
Check Engine Light Testing
Computerized trouble code scan and technician diagnostic evaluation.
Diagnostic Fee Credit Toward Repairs
Apply diagnostic testing fees directly toward recommended repair services at Jim Keras Chevrolet.
Looking for additional savings? View All Jim Keras Chevrolet Service Specials ?
Signs Your Chevrolet Needs Diagnostic Testing
Dashboard warning lights communicate critical sensor feedback from your engine control module (ECM). If you notice any of these warning signs while driving in Memphis, schedule a diagnostic evaluation:
- * Solid or flashing Check Engine light on the dashboard cluster
- * Rough engine idling, stalling, or hesitation during acceleration
- * Sudden drop in fuel mileage (MPG) or heavy exhaust smoke
- * Unusual engine knocking, pinging, or ticking sounds
- * Vehicle entering "Limp Mode" or experiencing severe power reduction
- * StabiliTrak, ABS, Transmission, or Service Engine Soon indicators
What Does a Chevrolet Diagnostic Test Include?
A code reader only tells part of the story. Our GM-certified diagnostic process accurately identifies root causes:
GM Digital Scan & DTC Read
Scanning stored Diagnostic Trouble Codes (DTCs) directly from your engine, transmission, and body control modules.
Live Sensor Stream Analysis
Evaluating live data streams (O2 sensors, MAF airflow, fuel trims, ignition timing) while the engine is running.
Pinpoint Circuit Testing
Performing electrical multimeter and vacuum tests on specific wiring harnesses, solenoids, and mechanical components.
Solid vs. Flashing Check Engine Light: What It Means
Understanding the difference between a steady light and a flashing light is critical to protecting your Chevrolet's engine:
Solid Check Engine Light: Indicates a non-emergency fault detected in the emissions, fuel, or ignition system. Your vehicle is generally safe to drive short distances, but should be inspected promptly to prevent further issues.
Flashing Check Engine Light: Indicates a severe active engine misfire that allows unburned fuel to dump into the exhaust system, which can overheat and permanently ruin your catalytic converter. Pull over safely and schedule immediate service.
Why Service Your Chevrolet at Jim Keras Chevrolet?
Trusted Chevrolet Certified Service in Memphis since 1949.
GM Factory Diagnostics
Advanced GM MDI diagnostic tools capable of reading deep Chevrolet software modules.
Certified Master Techs
Factory-trained technicians who specialize exclusively in GM powertrain and electrical systems.
Accurate Diagnosis
We test components thoroughly before replacing parts to save you time and money.
Memphis Owned
Locally owned family dealership serving Memphis and the Mid-South area.
You May Also Be Interested In:
Chevrolet Diagnostics FAQ
Frequently asked questions about Check Engine light diagnostics.
Why not just go to an auto parts store for a free code scan?
Auto parts stores pull raw code numbers (like P0300 or P0420), but codes only point to a system—not the exact failed part. Our Certified technicians perform live data analysis and electrical testing to prevent replacing unnecessary components.
Can a loose gas cap cause the Check Engine light to turn on?
Yes. A loose or damaged gas cap breaks the vacuum seal in your vehicle's Evaporative Emissions (EVAP) system, triggering a Check Engine light. Tightening the cap usually turns off the light after several drive cycles.
Is it safe to drive with the Check Engine light on?
If the light is solid and the vehicle drives normally, it is generally safe to drive to our service center. If the light is flashing or accompanied by loud noises, pull over immediately to avoid catalytic converter or engine damage.
Schedule Chevrolet Diagnostics in Memphis
Jim Keras Chevrolet
2000 Covington Pike, Memphis, TN 38128
Service Direct: 901-329-2115
Department Hours
| Monday – Friday | 7:00 AM – 6:00 PM |
| Saturday | 7:00 AM – 1:00 PM |
| Sunday | Closed |