Highest Driver Satisfaction 2026 · Knoxville, TN
The Best Mobile Diesel Mechanics in Knoxville
Ranked purely on the thumbs-up ratings drivers leave after each completed, paid job.
2026 Winner
Speedy Moose Fleet Service
74+ verified jobs · 100% thumbs-up (65)
100%
driver thumbs-up, award winner
160 jobs completed in this market
The 2026 Top 5 — Knoxville, TN
Ranked on verified outcomes from the RIG network. How rankings work
- 1
Speedy Moose Fleet Service✓ RIG Network
74+ verified jobs · 100% thumbs-up (65) · 100% on-time
🏆 Winner - 2
Diesel Doctors✓ RIG Network
12+ verified jobs · 100% thumbs-up (10) · 90% on-time
- 3
A&F Mobile Heavy Duty Repair & Towing✓ RIG Network
proven on verified RIG jobs · 100% thumbs-up
- 4
GS MOBILE DIESEL REPAIR✓ RIG Network
proven on verified RIG jobs · 83% thumbs-up
- 5
Smokey mountain heavy duty equipment and truck repair✓ RIG Network
proven on verified RIG jobs · 100% thumbs-up
Profiles link to the shop's page on the RIG directory — live stats, service list, and dispatch.
Behind every shop on this list
The fastest, most convenient way to get a diesel mechanic — anywhere in the country.
6,000+
mechanics nationwide, lower 48
5–10 min
to competing offers by text
24/7
live dispatch, nights & holidays
$0 upfront
pay only when the work is done
Describe the problem once — by chat or one phone call — and nearby mechanics bid back with exact price and ETA. You pick, they roll, payment settles through RIG when you're moving again. No phone-book roulette, no blank-check invoices, in Knoxville or 2,000 miles from it. And it's not just semis: the network serves commercial diesel of every kind — semi trucks and trailers, motor coaches and buses, RVs, box trucks, and heavy equipment.
“The I-40/I-75 split at Knoxville is where a lot of Southeast freight makes its turn. The drivers passing through rated these shops a perfect score — we're just publishing what they already knew.”
“The I-40/I-75 split feeds my board all night. Knoxville's winners send photos, call the driver by name, and leave a perfect rating trail.”
Fixed roadside, not towed
What mobile mechanics actually fix at the truck
Most breakdowns never need a tow. These are the jobs RIG dispatches every day in Knoxville and across the network — on semis and trailers, motor coaches, RVs, box trucks, and heavy equipment — handled on the shoulder, at the truck stop, or in the receiver's lot:
Tires & wheels
Blowouts, roadside tire changes, wheel seals, hub and bearing repairs — the #1 call we dispatch.
Air system & brakes
Blown air lines and glad hands, leaking brake chambers, air bags, slack adjusters, ABS faults.
Electrical & no-starts
Dead batteries and jump starts, starters, alternators, wiring shorts, marker and headlight fixes.
Cooling system
Coolant leaks, radiator and water pump swaps, blown hoses, antifreeze top-offs before damage is done.
Aftertreatment & derates
Forced DPF regens, DEF system faults, EGR issues, limp-mode derates cleared at the truck.
Driveline & engine
Belts, fuel filters and injectors, turbos, clutches — plus reefer units, liftgates and landing gear on the trailer.
Down with one of these right now? Chat with dispatch or call 1 (855) 744-2223 — offers by text in minutes.
Cast your vote for 2027
Who's the best mobile diesel mechanic in Knoxville? Voting is open to drivers and fleets working the Knoxville area.
Truck down in Knoxville?
Knoxville sits on I-40, I-75 — freight that can't wait for a tow to a shop. Mobile mechanics come to the truck: tires, air brakes, electrical, cooling, DPF and regen, trailer repair — at the truck stop, the receiver, or the shoulder.
See live RIG jobs around Tennessee →Other diesel shops serving Knoxville
Not affiliated with the RIG network and not part of the award rankings — listed because a driver with a truck down deserves every good option in town.
Locally owned mobile and in-shop commercial truck repair business serving Knox County, a certified NAPA truck center handling semi-trucks, box trucks, and fleet preventative maintenance on-site.
865-339-4904
Peterbilt dealership on Rutledge Pike servicing all major commercial truck makes, a Peterbilt Platinum Service Award winner offering same-day fast-lane repair and mobile service around Knoxville.
Frequently asked — Knoxville, TN
- Who is the best mobile diesel mechanic in Knoxville?
- Speedy Moose Fleet Service holds the Highest Driver Satisfaction 2026 award for Knoxville, Tennessee, ranked on verified completed jobs through the RIG dispatch network. Diesel Doctors and A&F Mobile Heavy Duty Repair & Towing round out the top finalists.
- How fast can a mobile diesel mechanic reach me in Knoxville?
- Through RIG's 24/7 dispatch, nearby mechanics in the Knoxville area typically respond with price and ETA offers within 5–10 minutes, with average arrival under an hour depending on where you are along I-40, I-75.
- What does mobile diesel repair cost in Knoxville?
- Mechanics set their own prices and compete for the job — you see exact price and ETA offers by text before choosing. Payment settles through RIG only after the work is done. EFS, WEX, T-Chek, and credit cards accepted.
- How were these Knoxville award rankings decided?
- Ranked purely on the thumbs-up ratings drivers leave after each completed, paid job. Rankings draw on verified job outcomes recorded in the RIG network — completed jobs, driver thumbs-up ratings, and fix rates — not paid placement. See the methodology page for details.