2020 Chevrolet Trax LT 1.4L Spark Plug & Ignition Coil Pack Replacement in Nashville, TN – Real Mobile Mechanic Experience
- Mobile Mechanic Co
- Mar 7
- 3 min read
Recently, I completed an on-site spark plug and ignition coil pack replacement on a 2020 Chevrolet Trax LT 1.4L in Nashville, Tennessee. The customer contacted Mobile Mechanic Co because the vehicle had developed an engine misfire that was affecting performance and making the vehicle less enjoyable to drive.
Engine misfires should never be ignored. Even if the vehicle is still running, a persistent misfire can reduce fuel economy, increase emissions, and, over time, potentially damage the catalytic converter if left unresolved.

Customer's Concern
The customer reported several symptoms, including:
Check engine light illuminated
Engine misfiring
Rough idle
Hesitation during acceleration
Reduced engine performance
Although the vehicle was still drivable, the customer wanted the problem diagnosed and repaired before it became more serious.
On-Site Diagnosis in Nashville, TN
After arriving at the customer's location, I performed a complete diagnostic inspection.
The diagnosis included:
Retrieving diagnostic trouble codes
Inspecting the ignition system
Evaluating engine performance
Inspecting the spark plugs and ignition coils
The inspection confirmed the engine misfire was related to worn ignition components. To restore reliable performance, I recommended replacing:
All spark plugs
The complete set of ignition coil packs
Replacing both components together helps ensure consistent ignition performance and reduces the chance of future ignition-related issues caused by worn components of similar age.
The Repair
For this repair, I completed:
Removal of the worn spark plugs
Installation of new spark plugs
Replacement of all ignition coil packs
Inspection of ignition wiring and connectors
Clearing diagnostic trouble codes
Final engine performance verification
Road-test confirmation
After the repair:
✅ Engine misfire eliminated
✅ Smooth idle restored
✅ Improved acceleration
✅ Check engine light resolved
✅ Engine running properly again
The customer was able to drive away with noticeably smoother engine performance and restored drivability.
What Causes an Engine Misfire?
An engine misfire occurs when one or more cylinders fail to ignite the air-fuel mixture properly.
Common causes include:
Worn spark plugs
Failed ignition coils
Fuel injector problems
Vacuum leaks
Low fuel pressure
Internal engine issues
Professional diagnostics help identify the actual cause before unnecessary parts are replaced.
Common Signs of Worn Spark Plugs or Ignition Coils
Some of the most common symptoms include:
Check engine light
Rough idle
Engine shaking
Hesitation during acceleration
Reduced fuel economy
Loss of engine power
Difficulty starting
Ignoring these symptoms can allow an ongoing misfire to overheat the catalytic converter, which may lead to more expensive repairs.
Common Problems on the 2020 Chevrolet Trax LT 1.4L
While servicing Chevrolet Trax models throughout Middle Tennessee, these are some repairs I commonly perform:
Spark plug replacement
Ignition coil replacement
Turbocharger-related diagnostics
Valve cover replacement
PCV system repairs
Battery replacement
Alternator replacement
Brake pad and rotor replacement
Thermostat replacement
Water pump replacement
Check engine light diagnostics
Oxygen sensor replacement
Routine maintenance helps keep the 1.4L turbocharged engine running efficiently and reliably.
📍 Mobile Spark Plug Replacement in Nashville, TN
Instead of taking time off work or arranging transportation to a repair shop, the customer had the repair completed at their location in Nashville.
That's one of the advantages of choosing Mobile Mechanic Co.
Whether you're:
At home
At work
In an apartment complex
In a parking lot
I bring professional diagnostic equipment and quality repairs directly to your vehicle.
Why Choose Mobile Mechanic Co?
Customers throughout Middle Tennessee choose Mobile Mechanic Co because I provide:
✔ Professional mobile diagnostics
✔ Honest repair recommendations
✔ Convenient on-site service
✔ High-quality workmanship
✔ Repairs completed at your location
Serving Nashville, Antioch, Brentwood, Franklin, Murfreesboro, Mount Juliet, Hendersonville, Columbia, Spring Hill, Gallatin, and surrounding Middle Tennessee communities.
📞 Need Engine Misfire Diagnosis or Ignition Repair in Nashville, TN?
If your vehicle has a check engine light, rough idle, engine shaking, or loss of power, don't ignore the warning signs. A proper diagnosis can identify whether worn spark plugs, ignition coils, or another issue is causing the problem.
Mobile Mechanic Co
📞 615-795-1347
📱 Facebook: @MobileMechanicCo
Professional mobile mechanic service throughout Middle Tennessee.

Comments