Auto Diagnostics in Louisville, KY
If you’re driving one of the newer models, you’ve probably noticed all the fancy sensors that monitor your car’s health. When something’s off in your ignition, fuel, or emissions systems, that check engine light appears—sometimes flashing, sometimes permanently ON.
If you see these signs, it’s time to have your car checked by a professional mechanic for a full diagnostic check. The sooner it’s checked, the better your chance of avoiding a bigger (and pricier) issue later on.
What Causes the Check Engine Light?
It’s not always easy to pinpoint why the light is on, but here are some common reasons:
- A failing oxygen sensor
- Ignition issues like a bad coil, rotor arm, or spark plugs
- Spark plug wires that need replacing
- A problem with your catalytic converter
- A faulty mass air flow sensor, which measures air coming into the engine
- An engine vacuum leak that can affect your fuel-air mix
- Issues with the EGR valve, responsible for controlling emissions
Flashing Check Engine Light vs. Steady
If your check engine light is flashing, pull over and call a mechanic as soon as possible. This could indicate that your engine is misfiring, which can cause unburned fuel to be dumped into the exhaust system. This unburned fuel can damage the catalytic converter, a key component of your vehicle’s emissions system, leading to costly repairs if not addressed quickly.
Check Engine Light Comes On While Starting the Car
When the check engine light comes on while starting the car, it’s usually nothing to worry about. This is a normal part of your vehicle’s start-up routine. During ignition, the car’s computer system runs a quick diagnostic check on various systems to ensure everything functions properly.
The check engine light briefly comes on when you turn the key or push the start button, which is part of this system check. If everything passes the self-test, the light will turn off within a few seconds after the engine starts.
Modern Car Diagnostics
With modern vehicles, diagnostics tests are key to getting to the bottom of what’s causing that check engine light. If you’ve noticed anything off—like poor fuel economy or unusual behavior—it’s best to schedule a diagnostic test sooner rather than later. Catching the problem early can save you from an expensive repair in the future.
Our Full Diagnostic Services
- Visual inspection of components for obvious issues
- System analysis using computer diagnostics
- Research of Technical Service Bulletins for any common problems
- Pinpoint testing to rule out potential problem areas
- Component diagnostics at every step
Once our experienced technicians complete the diagnostics, you’ll get a detailed report showing the next steps before we dive into any repairs. This way, you know exactly what’s going on under the hood and can make informed decisions.
Locally owned & trusted automotive repair, We want to be your go-to car repair people
Call Us Today for Convenient and Expert Auto Diagnostic and Repair in Louisville, KY
At Mobile Mechanic Pros Louisville, we’ve been keeping cars running smoothly across the city. On your scheduled time and date, we will come to your location with all the necessary diagnostic equipment to perform a full diagnostic test and any needed repairs. Afterward, we will give a detailed report and discuss the best options for your vehicle. That way, you don’t have to worry about finding a ride or wasting time at the auto shop.
Give us a call today to schedule a service appointment!