Engine Diagnostics
Advanced computer diagnostics to pinpoint issues quickly and accurately, saving you time and money on unnecessary repairs.
San Antonio's Diesel Specialists
Your truck shouldn't dictate your day.
When a diesel issue threatens your schedule, we get you back on the road — fast, honest, and without surprises.
12120 TX-16, San Antonio, TX 78224
Open Mon–Sat
What We Do
Comprehensive diesel service for every need
From routine maintenance to complex diagnostics, we keep your fleet running at peak performance.
Engine Repair
Complete engine overhaul and repair services for diesel engines of all makes and models, from minor fixes to major rebuilds.
Preventative Maintenance
Scheduled maintenance programs designed to catch problems before they become costly breakdowns on the road.
Brake & Steering
Full brake system service and steering repair to ensure your vehicle stops and handles safely, every mile of the way.
Transmission Service
Transmission diagnostics, fluid changes, and repairs to keep your power delivery smooth and reliable under any load.
Diesel Exhaust Systems
DPF cleaning, EGR service, and exhaust system repairs to keep your truck running clean and compliant.
Our Story
Built on trust, running on diesel
Stage 1 Diesel Repair was founded with a simple belief: every diesel owner deserves honest, expert service without the markup or the confusion. Located off TX-16 in San Antonio, we've grown from a one-bay operation into a full-service diesel repair shop trusted by commuters, fleet owners, and weekend warriors alike.
We specialize in diesel engines — that's it. While other shops stretch their expertise across every make and model, we pour our knowledge into understanding the systems that matter most to you. The result is faster diagnoses, correct repairs the first time, and a relationship that turns first-time customers into regulars.
10+
Years serving San Antonio
100%
Diesel-focused expertise
Local
Owned and operated
Why Stage 1
The difference is in the details
01
No guesswork
We use professional-grade diagnostic tools to identify the real problem — not the suspected one. You pay for what you need, nothing more.
02
Transparent pricing
Every estimate is clear and upfront. We explain the issue, the repair plan, and the cost before we touch your vehicle. No hidden fees, no surprises.
03
Right the first time
Our technicians live and breathe diesel. That focus means fewer comebacks and more time spent on the road where your truck belongs.
04
Your schedule matters
We know downtime costs money. That's why we work efficiently, communicate clearly, and treat your timeline as seriously as your engine.
Ready to get rolling?
Your diesel deserves better than a guess.
Give us a call or stop by the shop. We'll figure out what your truck needs — and tell you exactly what it'll cost.
Get in Touch
Visit the shop or give us a call
We're located just off TX-16 in San Antonio. Drop by during business hours or call ahead to schedule your service.
- Address
-
12120 TX-16
San Antonio, TX 78224-3028 - Phone
- (181) 555-7115
- stage1diesel@gmail.com
- Hours
-
Mon–Fri: 8:00 AM – 6:00 PM
Saturday: 9:00 AM – 2:00 PM
Sunday: Closed
Send Us a Message
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