A code reader tells you which system flagged a problem. It does not always say which part failed. A misfire code, for example, could come from a coil, a plug, an injector, a wiring fault or a mechanical issue inside the cylinder.

We go further with a lab scope, which displays the actual electrical signal from a sensor or circuit as a waveform. A weak coil, a voltage drop, or a sensor that cuts out only when warm will show up on the screen. We also use thermal imaging to spot parts running hotter than they should. The result is a repair aimed at the real problem, priced before any work starts.

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

Around Justin

Electrical problems that are hard to pin down

Some faults come and go. A car stalls once a week, the gauges flicker over bumps, or the battery dies after sitting for a few days. Problems like these can send a car from shop to shop. We are good at chasing them down, a skill our founder built keeping a construction company's fleet on the road.

The more you can tell us about when it happens, the better. Note whether the engine was hot or cold, how long the car had been sitting, and anything you did just before. We cover Justin from the Fort Worth area, so text those notes along with where the vehicle is parked.

Services in Justin

Repairs done onsite in Justin.

Diagnosis comes first when the cause is unclear. These are the repairs that often follow, all done at the vehicle in Justin.

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.

Ask about your repair

Work trucks and company vehicles.

For companies running trucks out of Justin, we can diagnose recurring electrical faults right in your yard instead of sending a truck away for testing.

Ask about fleet service

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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Questions

Mobile mechanic questions from Justin.

How is a lab scope different from a code reader?

A lab scope graphs electrical signals over time. It lets us watch a sensor or circuit misbehave instead of guessing from a code, and that usually means fewer parts replaced on a hunch. Call or text if your car has a problem nobody has been able to find.

Can you find a problem that only happens sometimes?

Intermittent faults take patience, and they are one of our strengths. We may ask you to describe exactly when it happens or to note conditions over a few drives. With that, we test the circuits involved where the car is parked. Text us what you have noticed so far.

How does a thermal camera help find car problems?

A thermal camera shows heat. It can reveal a dragging brake, a blocked section of radiator, a bad connection getting hot, or one cylinder running cooler than the rest. It gives us another way to confirm a fault before recommending a part. Call or text to describe what you are seeing.

A parts store already read my code. Do you still need to test it?

Usually, yes. A code points to a system, and it rarely names the failed part on its own. We use the code as a starting point and test from there, so the price you get is for the repair that fixes it. Send the code with your year, make and model.