Powerstroke, Cummins, Duramax, Isuzu, Cat. Diagnostics, injectors, turbos, head gaskets, DEF/DPF, EGR — all the way to full rebuilds.
Diesel work is its own discipline — different fuel systems, different emissions, different diagnostics, different tools. We have techs who choose diesel. Powerstroke 6.0 / 6.4 / 6.7 / 7.3 (both the old and the new 7.3), Cummins 5.9 / 6.7 / L9 / ISB / ISC, Duramax LB7 / LLY / LBZ / LMM / LML / L5P, Isuzu 4HK1 / 6HK1 / NPR, and Cat C7 / C9 / 3126 / 3306 for the heavier stuff. Light-duty pickup to medium-duty box truck — we see it all day.
What we work on, in-house: injectors and injection pumps (including HPOP and HEUI on older Fords and CP3/CP4 on Cummins and Duramax), turbochargers and VGT actuators, EGR coolers and valves, DEF systems and DPF regeneration faults, fuel heaters and lift pumps, head gaskets and cylinder head work, timing components, cooling systems, and full engine rebuilds when it's past repair. We also handle the non-engine side that diesel trucks need: driveline, 4WD transfer cases, Allison transmissions, trailer brakes, and chassis work.
AZ diesels have their own problems. Heat kills fuel pumps, melts wiring harnesses, and cooks DEF. Dust clogs air filters and MAF sensors faster than anyone expects. Short trips cook regens. Long highway pulls out to Phoenix and Tucson stress head gaskets on 6.0 Powerstrokes and CP4s on later Cummins/Duramax. We know what to look at first because we see it every week.
Fleet customers: we run scheduled PM intervals on pickups and medium-duty trucks, keep the service records straight, and work with your dispatch when a truck needs to be back on the road by a specific morning. Most fleet work we quote as a flat PM plus any adds, not a time-and-materials surprise.
Over-the-road semi engines on Class 8 long-haul trucks are not our wheelhouse — we'll point you to the right diesel shop. Programming and tuning: we do emissions-compliant work only. We won't delete DPF, DEF, or EGR systems on a street-driven vehicle — it's illegal to do or facilitate, and it voids warranties.
Serving diesel owners in Florence, San Tan Valley, Queen Creek, and Coolidge.
Diesel trucks live in our bays, but the same trucks need everything else too. See all services.
Powerstroke, Cummins, Duramax, Isuzu, Cat — any diesel, any size.
Service, repair, replacement — automatic and manual.
Check-engine codes, driveability issues, hard-to-find gremlins.
Tune-ups, injectors, timing, head gaskets, full rebuilds.
Scheduled PMs, DOT inspections, dispatchable repairs.
Pads, rotors, lines, shocks, struts, alignment-ready work.
Not a body shop. We don't do collision work, paint, body panels, interior upholstery, or child-seat installations — those take different tools and the right specialist. Need one of those? Ask when you call and we'll point you to someone good.
Bring it in before it gets worse. Scans are cheap; injectors are not. We'll give you an honest answer before any wrench turns.
Schedule a ServiceNo. Deleting emissions equipment on a street-driven vehicle is illegal under federal and state law, and shops that do it risk serious fines. We fix emissions problems rather than remove the emissions equipment — which is usually cheaper long-term than a delete and an aftermarket tune anyway.
It varies by engine and by how many injectors need replacing. The first step is always a cylinder balance test and (if applicable) a buzz test — because sometimes it's one injector, and sometimes it's a stuck IPR valve or a wiring issue instead. We quote only after we know what's actually wrong.
Common culprits: a short-trip driving pattern (truck never gets hot enough to burn off soot cleanly), a failing DPF differential pressure sensor, EGR issues piling soot in the DPF, bad fuel, or a cracked DPF itself. We diagnose the root cause instead of just forcing a regen and sending you off.
Yes — Isuzu NPR, Freightliner M2 with Cummins or Mercedes, Ford F-550 / F-650, GMC / Chevy 4500-5500, Ram chassis cabs. Not over-the-road Class 8 long-haul tractors.
Yes. Scheduled PMs, DOT inspection prep, repair prioritization and advanced scheduling for fleets of any size. Call and ask for fleet service — we'll work with your dispatch.
If you have any questions, give us a call or stop by. Come by the shop in Florence or give us a call. Walk-ins are welcome during business hours.