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Tracing the fault to its source.

Auto Electrical Repair in Crosby, TX

Batteries, alternators, starters, wiring and the circuits they feed, with the fault traced to its source rather than guessed at.

4.4 ★ from 370 Google reviews · Family-owned since 2003 · ASE-certified technicians

Modern vehicles run dozens of control modules across miles of wiring. An electrical complaint can look like a dead battery and turn out to be a circuit that never shuts off, or look like a failing module and turn out to be a corroded ground.

This is diagnostic work more than parts work. We test circuits, check voltage drops, and follow the fault to the point where it actually occurs.

Batteries, alternators, starters, wiring, grounds, and the electronics they feed — we handle straightforward replacements and the complex diagnosis other shops hand back.

What we diagnose and repair

  • Batteries, alternators and the charging system
  • Starters and no-start or slow-cranking problems
  • Wiring and connection repair, including damaged wires and bad grounds
  • Parasitic battery drain that flattens the battery overnight
  • Lighting problems
  • Power windows and locks, and other accessories that stop working
  • Module programming
  • Blown fuses and burning smells
  • Complex electrical diagnosis other shops hand back

Electrical diagnosis pricing

Electrical diagnosis starts at a 2-hour minimum at $250/hour.

How we find the fault

Modern vehicles run dozens of control modules across miles of wiring, so an electrical complaint rarely points straight at the failed part. We test the battery, alternator and starter along with their cables and connections, use voltage-drop testing and wiring diagrams to narrow the fault to one section of a circuit, and check the circuit again after the repair to see whether the fault has cleared. Intermittent faults have to be observed before they can be chased, so we confirm the condition first.

Charging problems that look like a bad part

A hard-starting car does not always need a new battery or alternator. In one documented repair, an undersized aftermarket wire between the alternator and battery was the cause, and the alternator itself tested good. In another, a car with only 1,200 miles had a weak battery and an intermittently failing alternator, and power surges had already damaged the power control module. Testing the whole charging and starting system is what separates a good part from a bad connection.

What you get

We explain what we found and what the options are, and nothing is added without your approval. Our electrical repairs are covered by our 12-month / 12,000-mile warranty, and we work on all makes and models, including domestic, Asian and European vehicles, diesels and hybrids.

A vehicle's battery, fuse box and wiring harness in the engine bay
Repair stories

Real repairs of this kind

Documented jobs from our bays: the concern that came in, what testing found, and how it was resolved.

A vehicle's battery, fuse box and wiring harness in the engine bay
Charging system diagnosis

Hard starting, and a wire that was too small

Concern
The vehicle was consistently difficult to start. The customer suspected a weak battery or a defective alternator.
What we found
An undersized aftermarket wire between the alternator and battery. The alternator itself tested good.
Outcome
The charging fault was corrected without replacing a good alternator, and the aging battery was flagged ahead of colder weather.
Read full story
An engine bay with the battery and electrical components visible
Charging system diagnosis

Only 1,200 miles — but mileage didn't tell the whole story

Concern
Difficult starting during the previous year's cold weather, on a vehicle with just 1,200 miles.
What we found
A weak battery and an intermittently failing alternator — and surges had already damaged the power control module.
Outcome
Low mileage and long periods of sitting do not eliminate age-related issues.
Read full story
Our approach

How we handle electrical repair

This is our general approach. Every vehicle is different, and recommendations follow an inspection. See the Service Disclaimer.

  1. 1

    Verify the complaint

    Intermittent electrical faults have to be observed. We confirm the condition before chasing it.

  2. 2

    Test the charging and starting system

    Battery, alternator, starter, and their connections, so a good part isn't replaced for a bad cable.

  3. 3

    Follow the circuit

    Voltage drop testing and wiring diagrams narrow the fault to a section of circuit rather than a whole system.

  4. 4

    Repair and confirm

    After the approved repair, we check the circuit again to see whether the fault has cleared.

FAQ

Questions we get asked

My battery is new but the car still won't start. Why?

A new battery rules out one cause, not the rest. Starters, cables, grounds, ignition switches, and circuits that drain the battery overnight all produce the same symptom.

What is a parasitic draw?

It's a circuit that keeps drawing current after the vehicle is shut off, which flattens the battery over hours or days. Finding it means isolating circuits until the draw disappears.

Can you work on wiring, or only replace parts?

We do wiring and connection repair as well as component replacement. Plenty of electrical faults are a damaged wire or a bad ground rather than a failed part.

How do I know if it's the battery or the alternator?

The symptoms overlap: a car that will not start or cranks slowly can have a weak battery, a failing alternator, a bad cable or a poor connection. Rather than replacing one and hoping, we test the battery, alternator, starter and their connections to see which one is at fault.

Why does my battery keep dying?

A battery that goes flat overnight can be an old battery, a charging problem, or a parasitic draw, a circuit that keeps pulling current after the vehicle is off. Finding which means testing, not just replacing the battery.

How much does electrical diagnosis cost?

Electrical diagnosis starts at a 2-hour minimum at $250/hour.

Do you do module programming?

Yes. Module programming is part of the electrical work we offer.

Do you work on all makes and models?

Yes. We handle electrical diagnosis and repair on all makes and models, including domestic, Asian and European vehicles, diesels and hybrids.

Are electrical repairs under warranty?

Yes. Our electrical repairs are covered by our 12-month / 12,000-mile warranty.

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Serving Crosby, Huffman, Barrett, Highlands, Channelview and Baytown from our shop at 14001 FM 2100.

Book Electrical Repair

Request a time online, or call (281) 462-9900 and tell us what the vehicle is doing.