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Fort Worth, TX and surrounding cities
Mobile Alternator and Starter Repair in Fort Worth, TX
A car that will not start or keeps draining batteries could have one of three problems. We test the battery, charging system and starter where it sits and repair the part that actually failed.
Call hours: Mon to Fri 7:00 AM to 8:00 PM · Sat 9:00 AM to 4:00 PM
Alternator and Starter Repair
Three parts that get blamed for each other
The battery stores power, the starter uses it to crank the engine, and the alternator recharges the battery once the engine is running. When one of them fails, the symptoms overlap. A dead battery, a bad starter and a failing alternator can all leave you with a car that will not start.
Swapping parts until something works gets expensive. A new battery in a car with a weak alternator will go flat again within days. A new starter will not help if a corroded ground cable is starving it of current. We treat battery testing as part of the diagnosis. We load test the battery, check charging voltage and output with the engine running, and measure voltage drop across the cables and connections while the engine cranks.
Heat is hard on batteries, and Texas summers shorten their life. Whatever the cause turns out to be, you hear what failed and what the fix costs before any part is replaced. If your car will not start in a driveway or a work lot in Fort Worth, call or text us.
Ready to get it looked at? Call or text 817-709-1357 and you will hear the price before any work starts.
Warning signs
Signs of a starting or charging problem
Single click and no crank
A weak battery, a poor cable connection, or a starter that is failing.
Slow, labored cranking
Low battery charge, corroded terminals, or a starter drawing too much current.
Battery light on while driving
The alternator may not be charging, so the car is running on the battery alone.
Dim or flickering lights and sluggish power windows
Charging output dropping as electrical demand rises.
Grinding when you turn the key
The starter gear is not meshing properly with the engine.
How it works
What to expect when the car will not start
Call or text and tell us exactly what happens when you turn the key or press the start button. A click, a slow crank and total silence each point in a different direction. Let us know where the car is and whether a jump start has worked.
We test the battery first, then the cables, grounds and starter circuit. If the car can be started, we check alternator output at idle and with the lights, fan and other loads switched on. Once the failed part is confirmed, we give you a price, and you decide how to proceed. Alternators and starters can often be replaced right where the car is parked. If the part has to be ordered, or the starter is buried under other components, we set up a return visit to finish the job.
When to call
When to call about a no-start or charging issue
If the battery light comes on while you are driving, head somewhere safe to park before the battery runs down, because the engine can stall once it does. Avoid shutting the engine off anywhere you would not want to be stuck. A car that needs a jump every morning has a problem that will get worse. Before calling, note whether the dash lights come on, whether you hear a click, and how old the battery is if you know.
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.
Where we work
Alternator and Starter Repair around Fort Worth.
Questions
Alternator and Starter Repair questions.
How can I tell if it is the battery or the alternator?
If a jump start gets the car going but it dies again soon after, or the battery light comes on, the alternator is a likely suspect. If the car starts after a jump and keeps running normally, the battery may be the problem. Testing confirms it either way. Text us what happened and we will check both.
Why does my car start fine some days and only click on others?
Intermittent clicking often comes from a loose or corroded battery cable, a worn ignition switch, or a starter with a dead spot in its motor. These problems tend to get worse in heat. We check voltage at each point in the circuit to find the weak link. Call or text the next time it acts up.
Can you replace an alternator at my workplace?
In many cases, yes. If the car is in a lot with space to work around it, we can replace the alternator there during your shift. Some engines bury the alternator deep, which may mean a scheduled visit instead. Send us a text with the vehicle details to find out.
Should I replace the battery when the alternator is replaced?
Only if it tests weak. A battery that has been run flat several times may be damaged, but plenty of batteries recover once they are properly charged. We test it after the repair and tell you whether it still holds a charge well enough to keep. Ask about it when you call.
Can a jump start damage my car?
Done correctly, a jump start is safe for most vehicles. Connect the cables in the right order, keep the clamps from touching each other, and use the jump points shown in the owner's manual on newer cars. If a couple of tries do not work, stop there and text us so we can come test it.
Get a price
A two-minute call is usually enough to get a price and a time. Texting works just as well.
Call hours: Mon to Fri 7:00 AM to 8:00 PM · Sat 9:00 AM to 4:00 PM