Losing Your Spark (Spark Plug Replacement)
February 1, 2026
When's the last time you thought about spark plugs? You probably don't remember. That's because spark plugs usually last a long time and don't need much attention. But they don't last forever, and when they start going bad, they'll send you a few clues.
- Vehicle is hard to start.
- Fuel economy is going down
- Acceleration isn't what it used to be
- Engine runs roughly
- Check Engine light is on
There are many things that can cause those symptoms, so it's wise to head on over to your vehicle repair facility to have them look over your vehicle. But the problem could be your spark plugs. They do wear out, not producing a strong enough spark to ignite your fuel the way they're designed to. A closely related problem is failing spark plug wires, and a technician will test for both possibilities… and more.
Your vehicle's manufacturer recommends changing wires and/or plugs at certain intervals. Spark plugs are made out of different materials and some last far longer than others. Ask your service advisor to let you know when yours should be changed. Badly misfiring plugs can cause expensive damage to a vehicle's catalytic converter, so it's best to take care of them before that happens. Replacing your spark plugs and/or wires is money well spent to have your vehicle running smoothly, dependably and efficiently.
Car Fix Louisville
5411 New Cut Road
Louisville, KY 40214
5023652323
Need Service?
More articles from Car Fix Louisville - Formerly Eagle Tire & Auto Center

Bad Vibrations (Brake Rotor Replacement)
January 25, 2026
If youve ever stepped on your brake pedal and felt your vehicle vibrate, thats a signal that you shouldnt ignore. A pulsating brake pedal is a sign that something is wrong. Braking action should be smooth, sure, and quiet, not shaky and noisy. Most newer vehicles have disc brakes, called that b... More

The Car Fix Louisville Guide to Proper Fluids for Your Vehicle
January 18, 2026
The automotive professionals at Car Fix Louisville would like to give Louisville drivers an update on some of the things happening in automotive fluids. You know, vehicles are becoming more sophisticated every day. Fluids such as, oil, coolant and transmission fluid are becoming more specialize... More

Go with the Flow (MAF Sensor Replacement)
January 11, 2026
If your vehicle has an internal combustion engine, it depends on two things to make propulsion power for you to be able to motor on down the road: fuel and air. The engine mixes the two in just the right proportion so that they can be ignited, creating a series of tiny explosions that are coordi... More
