DESERT DIESEL
TUCSON, AZ
After 3 weeks at the Ford dealer getting nowhere, after nobody could find the leak — customers bring their toughest diesel problems to Frank. He finds it. He fixes it. Zero comeback.
Frank — Master Diesel Mechanic
Named in every 5-star review · Stands behind every repair
4.6★
Google Rating
29
Reviews
10+
Years in Tucson
3
Service Bays
Why Desert Diesel
"Took it to Frank and it even took him a while to find it, working from the front of the motor back." That's the standard — methodical, honest, thorough. He doesn't stop until it's fixed right.
What We Fix
Engines, transmissions, leaks, electrical — if it's diesel-powered and in Tucson, Desert Diesel handles it.
Cummins 5.9 & 6.7, Detroit Diesel, PACCAR MX, Caterpillar. Frank digs into the hard problems other shops won't touch — and fixes them right the first time.
After 3 weeks at the Ford dealer, Chummy H came to Frank — properly diagnosed and back on the road fast. The 6.0 is Frank's specialty.
Allison Transmission certified service, manual and automatic repair, fluid service, and diagnostics for all heavy-duty diesel platforms.
Can't find the leak? Frank works from front to back until he locates it. Zero comeback on leaks he's fixed — he doesn't leave until it's right.
Check engine lights, EGR, DPF, turbo sensors. Advanced diagnostics — no guessing, no unnecessary parts, no dealer markup.
Oil changes, fuel filters, coolant service, and full diesel service intervals. Keep your truck running and out of the shop.
Customer Reviews
"5.9 Cummins — my truck was leaking diesel but I couldn't find the leak for the life of me. Took it to Frank and it even took him a while to find it, working from the front of the motor back. He found it, fixed it, and zero issues since. I appreciated his honesty."
Arizona Brian
Cummins 5.9 Owner
"F-250 6.0 Powerstroke — I was pulling my camper through Arizona when my check engine light came on. Met Frank and enjoyed the conversation so much I had him repair it. On the way home I crossed Wolf Creek Pass at 11,000 ft and didn't even know I was pulling a load."
Doyle Fields
F-250 Powerstroke Owner
"Brought my Ford F250 to Frank after being screwed around for 3 weeks by the Ford dealer. He got the truck in, diagnosed it properly, and had me back on the road quickly. The man knows his diesels and has the work ethic that is too rare today. He stands behind their work."
Chummy H
Ford F-250 Owner
"100%
"The man knows his diesels and has the kind of work ethic that is too rare today."
FRANK
Desert Diesel · Tucson, AZ
Trucks We Service
Visit The Shop
If the dealer can't fix it, if another shop gave up, if you've been chasing a leak for months — Frank has seen it before. He'll fix it.
(520) 792-0132Mon–Fri: 7 AM–5 PM · Sat: 8 AM–2 PM · 889 W Grant Rd, Tucson AZ