30+ years diagnosing diesel. Keeping you working.
When you call D. White's Diesel Force, you're talking directly to the person diagnosing your equipment. No middlemen. No sales pitch. No unnecessary repairs. Just honest answers, dependable work, and the experience to get you back on the road.
WHEN DOWNTIME ISN'T AN OPTION.
Trucks, cars, and heavy duty equipment. Diagnosed correctly. Repaired properly.
Honest work.
No runaround.
30+ YEARS OF EXPERIENCE
Three decades turning wrenches on every major heavy-duty platform.
Mobile Service
Whether you're at the yard, on the job site, or stuck roadside, we'll come to you.
Real Diagnostics
The right equipment, the right experience, and answers you can trust.
Straight Talk
We tell you what needs fixing now, what can wait, and what doesn't need touching.
Fast Turnaround
Downtime costs you money. We treat your truck like it's ours.
Trusted across Northern Virginia.
Three other shops couldn't figure out why my Cummins kept derating. Darrell had it diagnosed in an afternoon and back on the road the next day. Honest pricing, no runaround.
We run 14 trucks out of Northern Virginia and Darrell is the only guy we call for DPF issues. He's saved our fleet more downtime than I can count.
Our excavator went down mid job and he drove out to the site the same day. Found the problem, fixed it on the spot. That's the kind of service you don't forget.
Schedule your
appointment.
Truck losing power? DPF issue? Check engine light won't stay off?
Tell us what's going on and we'll help you get back to work.