Mobile heavy-duty diesel mechanic in Weed, CA
24/7 mobile mechanic service on the I-5 corridor, plus a shop by appointment. Cummins, Detroit, PACCAR, International. We come to you with the parts and diagnostics to solve most jobs in the field.
30–45 min response in the Weed area.
530-657-901124/7 dispatch. Average answer time 15–20 seconds.
ETA and pricing in 2 minutes.
Pick what's wrong. We'll call right back.
What it actually costs to call wrong
The wrong roadside call at 2 AM on I-5 costs four figures by sunrise. Five by Friday.
Most fleet ops leads who run trucks through the Siskiyou corridor have hit one of these. The reason Weed-area fleets put us on speed dial is the alternative.
A tow shows up first
Out here, the next heavy-duty wrecker might come from Redding (60+ mi) or Medford (60+ mi). Tow rate + after-hours + admin + storage. The truck ends up at a shop that's closed until Monday.
A mom-and-pop mechanic gets the dispatch
Doesn't have a current Cummins ECM tool. Can't pull live data. Tells your driver to "come back tomorrow when we figure out a part."
Dealer service department: drive 60 miles, wait 9 days
The nearest Cummins or Detroit dealer service is 60+ miles either direction. Your truck sits in their yard until the next bay opens.
Driver pushes through over the summit
Hopes to make Medford or Redding. Brake fade or cooling failure on the grade. Hilt or Anderson scale flags the truck and goes OOS on the spot.
We built Fleet Nation in Weed to be the call you make first, not the one you make after the first three went sideways.
What we handle in Weed
Mobile mechanic first, shop second. Most jobs solved roadside on the first visit.
Mobile heavy-duty mechanic
On-site diesel repair from a stocked service truck. Most jobs solved on the first visit.
- Engine diagnostics: Cummins ISX/X15, Detroit DD15/DD13, PACCAR MX, International A26
- Fuel system: CP4 pumps, injectors, lift pumps, fuel filter housings
- Air & brakes: compressors, governors, dryers, slack adjusters, wheel seals
- Cooling: radiators, water pumps, thermostats, hose replacement, EGR coolers
- Electrical: starters, alternators, batteries, harness diagnostics, trailer wiring
- After-treatment: DPF cleaning, DEF system, NOx sensors, regen forcing
Shop, by appointment
Shop time is appointment-only: bring the truck in for inspections, brake work, and other jobs that need a bay.
- Pre-trip and DOT/BIT inspections
- Brake jobs and air-system work that needs a bay
- Top-end engine work and injector replacement
- Suspension and frame work
- Tire mount and balance for medium- and heavy-duty wheel positions
- Driveline and clutch service
Why I-5 fleets call us in Weed
Weed sits at the foot of Mt Shasta, on I-5 between Redding and Medford. We know what breaks on this corridor because we work it: Siskiyou Summit grades, winter chain stops, ag haul out of the Klamath Basin, logging trucks off Hwy 97 and Hwy 89.
Siskiyou Summit grades
4,310 ft pass, sustained climbs and descents both directions. Brake fade, engine-brake issues, cooling system failures spike here. We pre-stock thermostats, water pumps, slack adjusters, and brake parts year-round.
Winter chain stops and snow events
I-5 chain controls run Nov through Mar. Trucks pile up at the Anderson and Hilt scales, and shops north of us close early in storms. We stay dispatching 24/7 through the weather.
Klamath Basin ag haul
Potatoes, hay, alfalfa, and onions move south through Weed on Hwy 97 to I-5. Tank trucks, hopper trailers, refrigerated vans. Air system and brake work in season, electrical and heat in the cab during winter runs.
Logging and forest-service trucks
Hwy 89 and the Lassen / Modoc national forests put trucks on rough surface and dust. Filtration, hydraulics, suspension, cooling. We service the same operators week after week and know their equipment.
I-5 dry-van transit
Class-8 day-cabs and sleepers running Sacramento to Portland and back. Cummins ISX/X15 and Detroit DD15 are the engines we see most. Diagnostics, after-treatment, and brake work are the call mix.
Who runs Fleet Nation
Ambar Kaur
Co-founder, Fleet Nation
When your truck goes down on Siskiyou Summit in February, the nearest shop with the right tools is sixty miles in either direction. The one closest to the scale might already have a hand-written "closed" sign in the window. Here's what changes when you call us instead.
A real human on the phone in 15 to 20 seconds. A real quote before the truck rolls. A service vehicle stocked for what actually breaks on the grade: brakes, cooling, air system, electrical. And if a job needs the shop, we'll tell you on the call before the truck rolls.
Not a callback queue. Not "try us in the morning." Not a tow to a shop that's closed until the storm passes. The call you make first when your driver is pulled over at Hilt or the chain control with the four-ways on. Save the cleanup calls for somebody else.
How we work
Fix your truck roadside.
When your truck breaks down, you don't want it towed. You want it running. Our service vehicle rolls to you with the tools, parts, and diagnostic gear to handle most heavy-duty diesel work in the field: brakes, cooling, air system, electrical, fuel system, after-treatment.
That's the play. The tow is the fallback.
Hours
Dispatch: 24 / 7 / 365
Shop walk-ins by appointment
Walk-away list
8 red flags when you call a roadside shop at 2 AM.
If the shop on the other end of the line does any of these, hang up. Most over-billing in this industry comes from the same handful of patterns.
Won't quote on the phone
"We'll figure it out when we get there." Translation: they'll add charges once you're committed.
No master tech on call after 6 PM
"Junior guy is on tonight, master comes in Monday." Your truck is broken now, not Monday.
Tow first, diagnose later
If the shop you're calling runs both a wrecker line and a mechanic side, ask how they price a tow that could have been a roadside fix. The honest answer is the one we use: eat the tow margin, bill the repair we actually did.
After-hours surcharge appears on the invoice
Wasn't mentioned on the call. Should have been. This is the most common over-billing pattern in roadside.
No DOT-trained tech on staff
Roadside DOT-issue repairs need someone who can sign off the work. Otherwise you're paying twice.
Won't bill insurance directly
"Pay us today, file with your carrier later." Legitimate shops bill insurance direct on accident calls.
Goes silent after the dispatch call
A serious dispatcher keeps you and your ops team updated en route. Not "we'll get there when we get there" and a check-in only when the bill arrives.
No certifications listed publicly
Brand-specific diagnostic tools, master tech credentials, DOT training. If a shop holds them, they post them. If they don't, ask why.
Coverage from Weed
Core service area runs the I-5 / Hwy 97 / Hwy 89 corridor in Siskiyou County. Published response time in the Weed area is 30–45 minutes. The table below shows drive time (response time also includes dispatch and on-scene setup).
| City | Distance | Drive time |
|---|---|---|
| Weed, CA | 0 mi | On-site |
| Mount Shasta, CA | 9 mi | 12 min |
| Dunsmuir, CA | 16 mi | 20 min |
| McCloud, CA | 18 mi | 25 min |
| Yreka, CA | 27 mi | 30 min |
| Montague, CA | 35 mi | 40 min |
| Etna, CA | 41 mi | 50 min |
| Hornbrook, CA | 48 mi | 55 min |
Drive times assume clear conditions. Winter weather, chain controls, or summit closures will move these numbers; dispatch quotes a real ETA on the call.
Other Fleet Nation locations
Service hubs nearest to Weed, CA.
What Weed-area fleets ask before they call
Pricing, response times, what we carry, billing terms, how a service hub handles complex jobs. The questions a dispatcher asks before they put us on the rotation.
Need help in Weed right now?
Live dispatcher answers in 15 to 20 seconds. Truck rolls right after. ETA and pricing on the call, before you commit.
24/7 dispatch. Holidays and weekends included. Live human, not a callback queue.