A faulty alternator or bad sensor could ground your entire operation. Electrical issues can quickly pile up in today’s complex trucks. Our full-spectrum electrical repair gets to the root cause fast—no guesswork, no costly part swaps—just quality repairs!
Contact UsSemi Truck Electrical Repair in St. John’s, FL
Today’s heavy-duty trucks are more computer-driven than ever. From your starter to the alternator, from diagnostic fault codes to sensors feeding your ECM, your electrical system keeps your engine, safety features, and performance tech operating seamlessly.
When something fails, you feel it. Signs of failure include:
- Power loss or sluggish engine performance
- Dead batteries, even after recent replacements
- Flickering dash lights or non-functioning gauges
- Repeated sensor faults or engine warning messages
- Trouble starting the truck—or no start at all
With advanced diesel truck diagnostic tools, we pinpoint the issue fast—whether it's a bad sensor, shorted wire, faulty battery, or misfiring module. Our services cover alternator repair, starter repair, OBD-II scanning, and electrical troubleshooting.
No matter the issue, we'll sort it out and get you back on the road in no time!
Experience the All In One Difference
Customer-first approach: You deserve answers, not guesswork. We explain every code and every step before repairs begin.
Unmatched warranties: You’re protected long after the repair with coverage that backs the quality of our diagnostics and repairs.
Top-tier repairs: Your truck is in the hands of electrical specialists with deep knowledge of heavy-duty systems and current technology.
Fast turnaround times: Your time matters. We work efficiently to get your diagnostics done and your truck running strong again.
Tailored service: Whether it’s one truck or a fleet, our solutions are customized to fit your electrical needs and downtime schedule.
Contact Us About Truck Electrical Repair Now: Call 904-870-1511!
Don’t let hidden electrical problems take your truck off the road. Call 904-870-1511 today to book your diagnostic scan or electrical repair. From stubborn dash lights to complete electrical failures, we’ll get you powered up and back to work—fast.
FAQs
What areas do you serve for heavy-duty electrical repair?
St. John’s Location
Based at 1261 County Rd 210, St. John’s, FL 32259, near County Road 210 and I-95, we proudly serve Jacksonville, FL; Orange Park, FL; St. Augustine, FL; Green Cove Springs, FL; Fleming Island, FL; Fruit Cove, FL; Julington Creek, FL; Nocatee, FL; and Ponte Vedra Beach, FL.
Palatka Location
Located at 558 US-17, Palatka, FL 32177, we serve St. Augustine, FL; Green Cove Springs, FL; Crescent City, FL; Interlachen, FL; Keystone Heights, FL; and Hastings, FL.
What is a full-engine diagnostic?
A full engine diagnostic scans your truck’s onboard computer to detect faults in key systems like fuel injection, ignition, emissions, and sensors. The scan reveals any stored error codes, allowing technicians to isolate the issue and recommend accurate repairs.
How do I know if my truck alternator is bad?
Common signs include dimming lights, electrical malfunctions, a dead battery, or your truck stalling. If your alternator isn’t charging the battery properly, your truck will eventually lose power altogether. A quick diagnostic test can confirm the issue.
How can I get heavy-duty electrical repair?
Contact us at 904-870-1511, and a member of our team will schedule your diagnostic or electrical repair at a time that best suits you. Whether it’s faulty wiring or failed components, we’ll restore full functionality and give you the confidence to get back behind the wheel!
