Work trucks with extra lights, inverters and tool chargers ask a lot of an alternator. We check whether the charging system is keeping up and replace worn parts where the truck is parked.

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

Alternator and starter in Haslet

Extra equipment puts extra demand on the charging system

A stock pickup is built around a certain electrical load. Then come the light bar, the inverter for power tools, a second radio, a battery charger for cordless tools, maybe a strobe kit. Each one draws current, and the alternator has to supply all of it while still recharging the battery.

When demand gets close to what the alternator can produce, it runs hot and works near its limit for hours at a time. The battery gets topped off less, the alternator wears sooner, and the starter has to turn the engine over on a battery that never fully recovers. Our founder maintained heavy fleets for a large construction company, mostly Fords, and upfitted trucks were a regular part of that work.

How it works

Call or text

Tell us the year, make and model and what the vehicle is doing.

Get a price

You hear the price before any work starts.

We come to you

The repair happens where the vehicle is parked. Bigger jobs get scheduled.

How it works

How we check a work truck at the yard or job site

Call or text with the truck, what has been added to it, and what it is doing. We can meet it at the yard, a job site or your driveway. We check battery health, alternator output at idle and under load, and the condition of the belt and main cables. With everything switched on, we can see whether the system keeps up.

You get a price before we start. Alternators and starters on most pickups are replaced on the spot. If the wiring for added equipment needs to be sorted out, that may take a scheduled visit, and we will tell you so before anything is taken apart.

Around Haslet

Call before it strands a crew

Call once you notice dimming, slow starts or a battery that needs help every Monday. Running the truck like that wears the alternator and shortens battery life, and it tends to quit at a job site instead of at home. Have a list of what is wired into the truck and roughly how long it idles each day. If you run several company trucks, ask about setting up fleet maintenance.

We cover all of Haslet

Your driveway, your work lot or the roadside, anywhere in Haslet. Call or text with the year, make and model and what the vehicle is doing.

Call 817-709-1357

Warning signs

Signs a loaded-up truck is short on charge

Lights dim when the inverter kicks on

The alternator is struggling to supply the extra draw at idle.

Battery needs a charger over the weekend

The truck is using more during the week than it puts back.

Slow cranking after a long day of idling

Accessories drained the battery while the engine turned slowly.

Whining that rises with engine speed

Worn alternator bearings or a failing diode often make that sound.

Battery light flickering over bumps

A loose connection or worn brushes may be interrupting the charge.

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

Alternator and starter questions from Haslet.

Can a stock alternator handle a light bar and an inverter?

Sometimes. It depends on the truck, the alternator and how much the accessories draw. Plenty of setups work fine until everything is on at idle. We can measure output with your equipment running and tell you whether the charging system is keeping up. Text us what is installed to get started.

Do you work on company trucks in Haslet?

Yes. We work on fleets and company work vehicles as well as personal cars and trucks, at the yard, the job site or wherever the truck is parked. Fords are our specialty. Call or text with the number of trucks and what they need, and we can set up a work order.

Why does my truck battery keep going flat over the weekend?

Something may be drawing power with the key off, or the battery may never get a full charge during the week. Both show up as a dead truck after it sits. We test the battery, the alternator output and the draw with everything off to find which one it is. Call or text to set that up.

Can a weak alternator wear out the starter?

Indirectly, yes. A starter fed by a low battery turns slower and has to crank longer, and that heat wears it. Weak charging also makes slow cranking look like a starter problem when the battery is the real issue. We test the whole circuit before replacing anything. Reach out by call or text to book a check.

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