Marine Diagnostic Services Jacksonville
When something feels off with your boat, guessing isn’t a strategy — accurate marine diagnostic services are. Run & Gun Boat Repair Jacksonville brings professional diagnostics straight to your dock, slip, or ramp anywhere in the Jacksonville area. Stop wondering what’s wrong and get a clear answer fast, so you can get back on the St. Johns River or the Intracoastal Waterway where you belong.
Trusted Service You Can Rely On
At Run & Gun, we know Jacksonville boaters don’t have time to wait weeks for a shop appointment or pay tow fees just to find out what’s wrong. Our marine diagnostic services cut straight to the source — whether your engine won’t start, your gauges are acting up, or something just doesn’t feel right underway. We pair diagnostics with hands-on repairs, from electrical service troubleshooting to fiberglass repair assessments, so you get answers and solutions in one visit. Call (904) 512-2431 — we come to your dock and get your boat running right.
Why Choose Us?
- Our mechanics use professional-grade scan tools and multimeters to pinpoint engine fault codes, sensor failures, and electrical gremlins accurately the first time.
- We diagnose problems on-site at your marina or ramp — no trailer, no tow truck, no shop drop-off required.
- Every diagnostic finding is explained in plain language, so you understand exactly what failed, why it failed, and what it will take to fix it.
- We cover both mechanical and electronic systems, including MercMonitor, Yamaha Diagnostic System, and NMEA 2000 network faults.
- Transparent, upfront pricing means no surprise charges after we've already pulled your engine cover.
Engine Fault Code Scanning
Modern outboards and sterndrives store fault codes just like a car's check-engine system, and reading them correctly takes the right tools and experience. Our technicians connect directly to your engine's ECU to retrieve active and historical codes, then interpret what they actually mean for your specific motor. This step alone can save hours of guesswork.
Serving Jacksonville & Surrounding Areas
Run & Gun delivers marine diagnostic services across a wide stretch of Northeast Florida. We regularly work in electrical service calls throughout Jacksonville's waterfront districts — including Ortega, Mandarin, Beauclerc, Arlington, and Julington Creek — where slips, private docks, and community ramps give us easy access to your vessel. Beyond Jacksonville, we travel to Orange Park, Fleming Island, Green Cove Springs, Middleburg, Atlantic Beach, Neptune Beach, Ponte Vedra Beach, Nocatee, Fernandina Beach, and St. Augustine. If you're not sure whether we cover your area, just call (904) 512-2431 and we'll confirm your location.
Jacksonville Neighborhoods
Nearby Communities
Green Cove Springs
Common Signs You Need Service
Catching a developing problem early almost always costs less than dealing with a full breakdown — especially on the water, where a failed engine can become a safety issue in a hurry.
Check Engine Light On:
An illuminated engine warning light means your ECU has logged a fault code. Ignoring it risks turning a minor sensor issue into a damaged powerhead.
Hard Starting or No-Start:
If your engine cranks but won't fire, or takes multiple attempts to start, fuel delivery, ignition, or compression may be compromised.
Sudden Power Loss:
A noticeable drop in top speed or RPM under load often signals a fuel restriction, prop damage, or a sensor fault limiting engine output.
Overheating Alarm:
An audible or visual overheat warning means cooling flow has been interrupted. Continuing to run the engine risks permanent internal damage.
Frequently Asked Questions
How long does a marine diagnostic service take?
Most on-site diagnostics take between one and two hours, depending on how many systems need to be checked and how straightforward the fault codes are to interpret. If the issue requires deeper investigation — such as tracing an intermittent electrical fault — we'll let you know before we continue so there are no surprises.
What does a boat diagnostic service cost?
Diagnostic pricing depends on the scope of the inspection and travel distance to your location. We provide transparent, upfront estimates before we begin, so you know what to expect. In most cases, the diagnostic fee is applied toward the cost of the repair if you choose to have us complete the work.
Can you diagnose my boat at the marina without me being there?
In most situations we prefer the owner or a designated contact to be present so we can walk you through our findings in real time. However, we're flexible — give us a call at (904) 512-2431 and we'll work out an arrangement that fits your schedule.
Do you diagnose both outboard and inboard engines?
Yes. Our technicians are experienced with outboard motors from major manufacturers as well as inboard and sterndrive setups. We also handle diesel auxiliary engines on sailboats. If you're unsure whether your engine type is covered, just ask when you call.
Don't let an unknown fault keep your boat tied to the dock.
Call (904) 512-2431 — we come to your dock with the tools and experience to find the problem fast. Ready to move forward? Get a free quote today and let's get you back on the water.