Mon-Fri 7:00 AM to 4:00 PM·1665 Donto Way, Brooksville, FL
24/7 Fleet Roadside: (352) 433-3800
Seminole, FL · Pinellas County

Mobile diesel mechanic and truck repair in Seminole, FL

Seminole is ringed by unincorporated county pockets, so the line between city and county can be hard to see from the road. It makes no difference to us: a technician from our Brooksville shop comes to the truck wherever it stopped.

Mobile Diesel Repair for Seminole, FL by RDI Power
  • On-site at your locationService
  • Pinellas CountyCounty
  • 24/7 for fleet accountsFleet roadside
  • 3 yr / 36,000 mi laborWarranty

Seminole is a residential city of about 19,400 people, and its main arteries are State Road 694 and Alternate US 19. We found no industrial district inside the city limits. Its garbage is collected under contract by Waste Pro, while the city’s Public Works department, based at 11195 70th Ave. N., maintains the streets, stormwater systems and city facilities. The diesels on Seminole’s streets are contractor, service and delivery trucks, public works vehicles and through traffic on the state roads. RDI Power has no shop here. When one of those trucks stops, a mobile technician comes to it from Brooksville.

SR 699 carries the biggest truck share near Seminole

FDOT’s 2025 traffic inventory counts about 3,567 trucks a day on SR 699 near Seminole, 12.3% of roughly 29,000 vehicles, so about 1 vehicle in 8 on that road is a truck. Alt US 19 carries about 2,464 trucks a day, a smaller 5.6% share of a busier road, around 44,000 vehicles. SR 694 rounds out the city’s main routes.

If the truck stops on one of them and will still roll, get it into a lot or onto a side street. If it will not, stay out of the travel lanes, put out triangles and call from somewhere safe. The technician decides on arrival whether the spot is safe enough to work in.

Seminole’s county enclaves and finding your truck

Seminole is ringed by unincorporated Pinellas County enclaves, and the boundary between city and county can change from one block to the next. A mailing address does not always tell you which side of the line you are on, and a map app may not either. For mobile service it does not matter which jurisdiction the truck is in, but it does matter that we find it.

So describe the location the way you would to a friend: the road, the nearest cross street, which side of the road the truck is on and a business sign or landmark you can see. On a job site, say where the entrance is and who will meet the technician.

The route in from Brooksville: Gateway Expressway and Seminole Boulevard

Technicians come south from Brooksville on the Suncoast Parkway and the Veterans Expressway, cross to I-275, then come west on the Gateway Expressway (SR 690) and CR 296 to Seminole Boulevard. Knowing that, a location described from the east, such as the last cross street you passed on SR 694 or the nearest intersection on Seminole Boulevard, is the easiest to follow.

On-site jobs in Seminole

With the truck on level ground and room to work around it, a technician can often clear the fault where it sits:

  • Check engine lights and derates. Codes and live data read at the truck, then the suspect sensor, connector or aftertreatment component tested before anything is replaced. Our check engine light page explains the process.
  • No-starts. Batteries, cable ends, ground straps and starters.
  • Charging problems. Alternators and belts.
  • Overheating. Leaking hoses, failed clamps and broken belts.
  • Fuel delivery. A clogged filter, a separator full of water or air drawn in after a filter change.

Every repair is recorded in a digital inspection with photos and the technician’s notes, so the owner or the office sees what was done without having been there.

Seminole jobs that need the shop

Engine teardowns, transmission work and repairs that need a lift belong in our Brooksville bays. When a Seminole diagnosis points there, we explain why, then plan the move with you: the day the truck can be spared and how it gets north. Whatever the Seminole visit found goes to the shop with the truck.

The details a technician needs in Seminole

Fleet accounts get 24/7 roadside assistance under RDI Fleet, so a Seminole fleet truck down on SR 699 on a Saturday is still a call to (352) 433-3800. Seminole callers without a fleet account can reach the shop on weekdays from 7:00 AM to 4:00 PM. The on-site program serving Seminole is described on our mobile diesel repair page. Trucks working the SR 688 corridor to the north are covered on our Largo mobile diesel repair page, and Seminole operators who want scheduled maintenance can look at RDI Fleet in Seminole.

RDI Fleet

Keep Seminole trucks on schedule.

One shop that knows your trucks, a plan built around your operation, and a warranty in writing.

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  • Vehicle classesLight · Medium · Heavy
  • Fleet typesTrucks · Trailers · Buses
  • Fleet warranty2 yr / 24,000 mi
  • Roadside24/7 for fleet accounts
  • ServiceIn the shop or on-site
  • Shop hoursMon-Fri · 7 AM to 4 PM
Reviews

Their words, not ours.

★★★★★
“John H did a great job. Talked me through what was needed, service techs did a fantastic job. The narrative format on the paperwork was exceptional. Clearly stated what they did, what they found, and the corrective...”
Google reviewer · Google review · August 3, 2026
Google rating
4.6
250+ Google reviews
★★★★★

I'm so happy with the service I received from RDI Power. I was told by another shop that I had a transmission leak in my diesel truck. Not only did the staff at RDI Power correctly diagnose my issue (which was not a leak), they were able to resolve the issue...

Sue F. · August 4, 2026
★★★★★

These guys are awesome, from Joe the service writer to the owners and all the folks in between. They communicated every step of the way and researched alternatives to my myriad of issues. Kudos all around.

Eric R. · August 4, 2026

Seminole questions

Does it matter whether my truck is inside Seminole city limits or in a county enclave?
Not for mobile service. We come to both. What helps is a precise location: the road, the nearest cross street and a business or landmark, since addresses around the enclaves can be confusing.
Can a check engine light on a diesel parked at a Seminole job site be diagnosed without a tow?
Usually. The technician reads the codes and live data at the truck, tests the suspect part and repairs it there when possible. If the fix needs a lift, the truck goes to Brooksville with the diagnosis already done.
Is there an RDI Power drop-off point near Seminole?
No. The only RDI Power shop is in Brooksville, and in Seminole we come to the truck. Work that needs a bay is planned into the Brooksville shop with you.
Request service

Tell us what's going on in Seminole.

We'll call you back with next steps during shop hours.

(352) 433-3800
  • Shop hoursMon-Fri · 7 AM to 4 PM
  • Address1665 Donto Way, Brooksville
  • Fleet roadside24/7
Vehicle type

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