Texas Diesel Company is right here in Van Alstyne — 13765 US-75, on the highway side of town, in the same building we’ve been operating out of for years. If you’re a Van Alstyne resident, you don’t have a drive to make. Walk in any time during shop hours, drop the truck off in the lot, and we’ll walk you through the diagnosis and send a written estimate — by text, email, or phone, whichever works for you — before any work starts.
This page covers what we do for Van Alstyne specifically. For service in surrounding cities — Sherman, Anna, Melissa, Bonham, and the rest of our service area — see the service area hub for the full list.
Who we serve in Van Alstyne
Van Alstyne is a working town with a real mix of diesel use cases:
- Local fleet operators running work trucks for construction, landscaping, and small-business delivery — we handle scheduled maintenance and emergency repairs that keep those trucks earning
- Agricultural users — farmers and ranchers in and around Van Alstyne who depend on diesel pickups and equipment for daily operations
- Daily-driver owners — Van Alstyne residents commuting to Sherman, McKinney, Plano, or further south to Dallas for work, who need a diesel that starts every morning
- Performance and custom build owners — local truck enthusiasts who bring their builds to us because we have the same Ford, GM, and Dodge factory diagnostic tools the dealers use
If your truck is a tool, we keep it working. If your truck is a project, we do the kind of build work most general repair shops can’t.
What we do
Full-scope diesel repair and performance, all under one roof:
- Engine diagnostics and repair for Ford Power Stroke (6.0L, 6.4L, 6.7L, 7.3L), Cummins (5.9L, 6.7L), and Duramax (LB7 through L5P)
- Transmission rebuilds and upgrades for Ford 10R140, Allison 1000, Dodge 47RFE / 48RFE / 68RFE
- Performance hard-parts — fuel system upgrades, intake and filtration, hard parts (billet turbos, CP3 conversions, ARP studs). Tuning is a specialized domain we don’t do in-house — happy to point you to trusted tuners.
- DCR conversions for the 6.7L Power Stroke (see our DCR Conversion service)
- Custom builds — lift kits, wheels and tires, accessories
- Maintenance — oil changes, fluid analysis, alignments, injector flow tests, glow plug work
For specific code or symptom diagnostics, browse our research library — we’ve documented the most common issues we see across every diesel platform we service.
Why Van Alstyne owners choose us
The honest answer: because we work the way people in this town expect a shop to work.
- Written estimates before any work begins. You drop the truck, we diagnose, we walk through what we found and what it involves, and you approve before we proceed. We keep you in the loop by text, email, or phone — your call. No back-end surprises.
- Factory scan tools, not generic OBD readers. We have the official Ford, GM, and Dodge diagnostic software in-house, which means we can read live data and run bidirectional commands the same way the dealer would.
- Upfront pricing. Our shop rate is $215/hour, posted, no surprise upcharges
- Warranty on parts. Every diesel we service gets a warranty on parts; we use OEM or quality-equivalent parts and we tell you what we’re using and why
- No service-package upsell. If your truck needs an oil change, it gets an oil change. If it needs a head gasket, we tell you the honest truth about the repair scope and your options. We keep customers by being straight, not by selling work that isn’t needed.
Getting to the shop
You’re already in Van Alstyne. The shop is at 13765 US-75 — on the highway side of town, easy to spot from the road. Walk-ins are welcome during shop hours; calling ahead lets us reserve a bay if you need same-day service on a specific repair.
Hours: Monday–Thursday 8:30 AM – 5:30 PM • Friday 8:30 AM – 2:30 PM • Saturday and Sunday closed
Phone: (903) 292-0400
If your truck won’t start or shouldn’t be driven, call us and we’ll work out the logistics to get it to the shop.
Request an estimate
Tell us what your truck is doing — year, make, model, engine, and the specific symptoms or codes — and we’ll walk through what your truck is doing, send a written estimate with our recommendations, and keep you in the loop through the repair. Request an estimate or call (903) 292-0400 during shop hours.