Truck Diagnostics & Electrical Repair in Spring, TX

Dead batteries, flickering lights, or engine codes holding up your fleet? Fleet Iron Garage provides expert mobile and in-shop electrical diagnostics to keep your systems running strong and your trucks moving.
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Diagnostics and Electrical Repair in Spring, TX

Fleet Iron Garage services heavy-duty trucks, trailers, RVs, and fleet vehicles with reliable troubleshooting and electrical repairs. We handle everything from alternators and starter motors to wiring harnesses, sensors, and full battery systems. If your dash is lit up with warning lights or your truck won’t start, we’ll find the cause fast.

Common electrical and diagnostic services include:

  • Battery and alternator testing
  • Starter motor replacement
  • Sensor and ECU diagnostics
  • Wiring repairs and replacements
  • Full-system diagnostic scanning

What Makes Us Different

Our mobile electrical repair services cover a 150-mile radius from Spring, TX, providing on-site diagnostics and repair for your convenience. We bring dealership-level diagnostic tools and expertise directly to your truck—wherever it is.

Whether your issue is electrical or software-based, our technicians are trained to diagnose and fix it right the first time. We’re here to keep you powered up and rolling. You can expect:

  • Certified diagnostics specialists
  • Complete electrical troubleshooting
  • On-site ECM and fault code scanning
  • Fast repairs for trucks, trailers, and RVs
  • 24/7 mobile support and roadside service

Schedule Your Electrical Repair Now: Call 281-808-7814!

Having electrical trouble or warning codes? Call 281-808-7814 to schedule your mobile or in-shop diagnostic service with Fleet Iron Garage. We’ll find the fault and fix it fast.

FAQs

What Areas Do You Serve For Heavy-Duty Diagnostic and Electrical Repair?

As well as Spring, Texas, we also proudly service the following areas: Houston, TX; Galveston, TX; Beaumont, TX; College Station, TX; Huntsville, TX; Livingston, TX; Bryan, TX; Conroe, TX; and The Woodlands, TX.

What Do Truck Diagnostics Involve?

Diagnostics involve scanning your truck’s computer for trouble codes, checking system functions, and using specialized tools to identify faults in sensors, wiring, or control modules. It helps pinpoint problems before they become major issues.

How Do I Know If My Alternator or Battery Is Bad?

A weak battery, dim lights, slow starts, or a dashboard battery light may point to charging system problems. We test both the alternator and battery to confirm which part needs attention.

How Can I Get Heavy-Duty Diagnostic and Electrical Repair?

If you're ready to schedule diagnostic or electrical repairs, call Fleet Iron Garage today at 281-808-7814 and speak with our expert diesel technicians.

Frequently Asked Questions

FAQs

Find detailed responses to some of our most frequently asked questions.

What Types of Repairs Do You Offer?

We offer full mechanical repairs for heavy-duty trucks, trailers, buses, RVs, and equipment. Services include engine work, brakes, suspension, hydraulics, driveline, aftertreatment systems, electrical, and DOT-compliant repairs.

Do You Offer Mobile Repair Services?

Yes, we provide mobile repair across a 150-mile radius of Spring, TX. Many common repairs can be completed on-site, including diagnostics, brakes, suspension, hydraulics, and aftertreatment service.

What Engines Do You Service?

We service all major diesel engines, including Cummins, CAT, Detroit, PACCAR, Volvo, International, and more. We provide diagnostics, repair, rebuilds, and conversions for both single trucks and fleet vehicles.

Do You Repair Hydraulic Cylinders?

Yes, we perform hydraulic repairs, including cylinder rebuilds, pump and valve repair, hose replacements, and system diagnostics for trucks, trailers, and heavy equipment.

Can You Perform Aftertreatment Repairs?

We provide complete EGR and DPF repair and cleaning, SCR and DEF system service, forced regenerations, and emissions diagnostics to help keep your truck compliant and running smoothly.

Do You Perform Transmission & Clutch Repairs?

Yes, we offer diagnostics, clutch replacements, transmission repairs, rebuilds, and fluid services for heavy-duty manual, automatic, and AMT transmissions.

Do You Offer Suspension Repair?

Yes, we service all types of suspension systems, including leaf spring and air ride. We provide repairs for shocks, bushings, air bags, linkages, and complete suspension overhauls.

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Contact Us

Let us know what is going on with your vehicle, and we will get back to you soon with a quote.

Contact Information

Hours

Mon - Fri: 7:00AM - 9:00PM

Location

23231 W. Hardy RD
Spring TX 77373
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