Check engine light on or electrical issues popping up? Superior Diesel in Houston, TX scans and repairs your truck’s systems before small problems grow into major repairs.

Truck Diagnostic and Electrical Repair In Houston, TX
Modern diesel trucks rely on complex electrical systems to manage everything from engine performance to safety features. When something goes wrong, it’s not always visible—but it is measurable.
At Superior Diesel, we use dealer-level diagnostic tools, scanners, and software to pull codes, pinpoint failures, and complete electrical system repair efficiently. Whether it’s a faulty starter, alternator, battery, or wiring issue, we’ll find it and fix it.
- Full-system electrical diagnostics and code scanning
- Battery testing, replacement, and charging system checks
- ABS diagnostics to quickly identify and resolve anti-lock braking system issues
- Starter and alternator diagnostics and repair
- ECU and sensor troubleshooting
- Wiring repairs, harness replacements, and connection inspections
Types of Trucks We Service
- Tractor
- Trailer
- Box truck
- Flatbed
- Car carriers
- Dump truck
- Cement mixer
- Off-highway equipment
- Forklifts
- Crane
- Crane truck
- Boom truck
- Conveyor truck
What Makes Superior Diesel Different?
We don’t just replace parts—we test and verify issues before we do any work. Our techs are trained to diagnose even the most complex electrical and electronic problems in diesel trucks. And with 11 service bays, we keep turnaround times short—even for full system repairs.
- Advanced diagnostic scanners for all major truck brands
- In-depth troubleshooting, not just code clearing
- Conveniently located between I-45 and I-69 for easy access
Contact Us About Truck Electrical Repair Now: Call 281-219-6900!
Don’t let electrical problems keep your truck down. Call Superior Diesel at 281-219-6900 to schedule diagnostics or repairs and get reliable power and performance restored.
What areas do you serve for electrical repair?
As well as Houston, TX, we also proudly service the following areas: Pasadena, Pearland, Sugar Land, Conroe, Stafford, Bellaire, South Houston, Richmond, and Texas City. Willing to travel further if expenses are covered.
Why is my engine light on but nothing seems wrong?
A check engine light may indicate a sensor issue or intermittent fault. Even if there are no obvious symptoms, it's important to scan for codes and confirm whether the issue is minor or serious.
What are faulty electrical wiring warning signs?
Watch for dim lights, intermittent power loss, burnt smells, or fuses blowing repeatedly. These signs often point to short circuits, damaged wires, or failing connections.
How can I get electrical diagnostics and repair?
Call Superior Diesel at 281-219-6900 to schedule your diagnostic or electrical repair service. We’ll identify the problem and get your truck safely back on the road.
Heavy-Duty Repairs
Our repair services focus on restoring your truck to peak condition every time. We help maximize performance, reliability, and efficiency so your truck is always ready.
Testimonials
Here's what our customers are saying, feel free to leave us a review!
Grant Golden