Auto Electrical Repair in Irving, TX
NexGen Auto handles auto electrical repair in Irving, TX — battery and alternator testing, starter replacement, parasitic-draw diagnosis, and wiring repair for cars and trucks.

What we hear from drivers.
- Slow crank or clicking when you turn the key
- Car dies overnight or after sitting a few days
- Battery warning light or charging-system message
- Headlights or interior lights dim under load
- Electrical accessories cutting in and out
What you get.
- Battery load test and state-of-health report
- Alternator output test under load
- Starter draw and voltage-drop testing
- Parasitic-draw isolation
- Connector, ground, and fuse-box repair
Diagnose first. Then repair.
- 01
Test
Battery, alternator, and starter on the bench tester — not eyeballed.
- 02
Isolate
If the drain is on the car, we hunt the circuit, not the part.
- 03
Repair
Replace what failed; clean and tighten what's worn.
- 04
Recheck
Confirm output, draw, and crank voltage are all in spec.
Local shop. Honest answers.
NexGen Auto is based at 1540 E 6th St in Irving, TX — easy reach from Las Colinas, Valley Ranch, Coppell, Grand Prairie, and the DFW Airport area. We service cars, trucks, and SUVs, and we work on daily drivers, lifted trucks, and Jeeps.
Every job starts with a written estimate. Parts are OEM-grade by default; we'll show you the budget option when one makes sense and let you decide. Nothing leaves the bay without a short road test to confirm the repair held.
Things that often come together.
Common questions.
How do I know if it's my battery or alternator?
Quick rule: if it cranks slow or dies overnight, usually battery. If the battery light comes on while driving or the alternator's output is below spec, usually alternator. We test both — guessing this wrong is expensive.
How long do car batteries last in Texas?
Texas heat is brutal on batteries — most last 3–4 years here vs. 5+ in cooler climates. We do a free battery test as part of any service visit.
My car dies after sitting a few days. What is that?
Usually a parasitic draw — something staying powered when it shouldn't. We track the source by pulling fuses one at a time with an amp meter on the battery cable.
Do you replace starters?
Yes. We test first to confirm the starter's the actual problem (not a ground or trigger-wire issue), then replace with an OEM-grade unit.
Drop by. Or call ahead.
- Address
- 1540 E 6th St
Irving, TX 75060 - Hours
- Mon – Sat8 AM – 7 PMSunday10 AM – 5 PM




