A check engine light in Lewisville can be sorted out without a trip to the shop. We test for the cause where the car is parked and price the repair first.

Call 817-709-1357 Text us Request a work order

Call hours: Mon to Fri 7:00 AM to 8:00 PM · Sat 9:00 AM to 4:00 PM

Mobile auto repair in Lewisville

A steady light and a flashing light mean different things

A steady check engine light means the engine computer logged a fault. It might be a loose gas cap, a sensor reading out of range, or something that will get worse over time. It is usually safe to drive while you set up a diagnosis.

A flashing light is more serious. It usually means the engine is misfiring badly enough to send unburned fuel into the exhaust, which can overheat and damage the catalytic converter. Ease off, avoid hard acceleration and get it checked before driving much further. In both cases, we read the codes, look at live data and test the parts involved, then give you a price before replacing anything.

Ready to get it looked at? Call or text 817-709-1357 and you will hear the price before any work starts.

Services in Lewisville

Repairs done onsite in Lewisville.

A check engine light can lead to any of these repairs, all done at the vehicle in Lewisville.

Car AC Repair

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Check Engine Light Diagnostics

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Brake Repair

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Alternator and Starter Repair

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Timing Belt Replacement

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Shocks and Struts

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Belts and Hoses

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Water Pump Replacement

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Fluids and Tune-Ups

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Onsite and Roadside Repair

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Fleet Maintenance

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Ford Repair

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Don't see your repair listed? We can most likely still help. Tell us what the vehicle is doing.

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Around Lewisville

What a code tells us and what it leaves out

Codes are organized by system. A lean code, for example, says the engine is getting too much air or too little fuel. The cause could be a vacuum leak, a dirty sensor, a weak fuel pump or a clogged injector, and each one is a different repair.

We narrow it down with live data, circuit tests and our lab scope, so you pay for the fix and skip the guesswork. Send the code if a parts store pulled one, along with how the car is driving and where it is parked.

Engine work in progress under the hood of a truck

Why Day's

Shop-level work, where you park.

We bring dealer-level diagnostic tools, including a lab scope and a thermal camera, to wherever your vehicle is parked.

Fords are our specialty, built on years of maintaining a construction company's fleet, from cars and light trucks to heavy-duty work trucks.

About Day's

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Work trucks and company vehicles.

When a company truck lights up with a check engine warning, we can diagnose it in your lot and send the price before any repair begins.

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Questions

Mobile mechanic questions from Lewisville.

How far can I drive with a steady check engine light?

If it is steady and the car drives normally, usually yes for a short time while you arrange a diagnosis. If it is flashing, or the car is running rough, overheating or losing power, drive as little as possible. Call or text us with what the light is doing.

Will the light go off on its own?

Sometimes. A loose gas cap or a one-time fault can clear after several drive cycles. If the light returns or stays on, the fault is still there, and the stored code helps us find it. Text us if it keeps coming back.

Should I clear the code and wait to see if it returns?

Clearing the code erases information we would use to find the problem, and the light usually comes back anyway. Leaving it stored gives us a better place to start testing. Call or text before clearing anything, and we can tell you whether it is safe to keep driving.

Do you fix the problem after finding it?

In most cases we do the repair where the car is parked once you approve the price. Sensors, ignition parts, vacuum leaks and many other causes can be fixed on site, and larger jobs get scheduled. Text us the code and your location to get started.