Transmission Repair in Irving, TX
NexGen Auto offers transmission repair and service in Irving, TX — slipping, delayed shifts, leaks, and scheduled fluid service for both automatics and manuals.

What we hear from drivers.
- Slipping between gears or losing power under acceleration
- Delayed engagement when shifting into Drive or Reverse
- Harsh, jerky, or unpredictable shifts
- Red or brown fluid leaking under the car
- Burnt smell from under the hood
- Transmission warning light or limp mode
What you get.
- Scan for transmission codes and live pressure data
- Fluid and filter service (where serviceable)
- External seal and pan-gasket replacement
- Solenoid and valve-body diagnosis
- Referral plan if a rebuild is the right call
Diagnose first. Then repair.
- 01
Scan
Read TCM codes and capture live data on a test drive.
- 02
Inspect
Check fluid color, smell, level, and the pan magnet for debris.
- 03
Recommend
Service, external repair, or rebuild — with honest cost ranges.
- 04
Service
Perform agreed work, refill to spec, verify shifts on a road test.
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 often should I service my transmission?
Most modern automatics call for fluid service between 60,000–100,000 miles. Heavy towing, mountain driving, or Texas-heat duty shortens that interval — check your owner's manual or ask us.
Drain-and-fill vs. flush — what's better?
Depends on the platform. Some manufacturers explicitly forbid a power flush. We use the method your transmission was designed for and tell you exactly what we're doing.
Is a slipping transmission always a rebuild?
Not always. Sometimes it's low fluid, a failing solenoid, or a valve-body issue — much cheaper. We diagnose first so you don't pay for a rebuild that wasn't needed.
Can you rebuild transmissions in-house?
Some, yes. Complex rebuilds we send to a trusted specialist rebuilder and manage the job and warranty for you — so you have one shop to talk to.
Drop by. Or call ahead.
- Address
- 1540 E 6th St
Irving, TX 75060 - Hours
- Mon – Sat8 AM – 7 PMSunday10 AM – 5 PM




