Cummins, Power Stroke or Duramax — diesel trucks are built to work, and they need a shop that knows fuel systems, turbos, emissions and heavy-duty drivelines inside out. C.C. Automotive has worked on Tucson diesels since 1981.
Diesel trucks don't fail like gas engines, and they shouldn't be diagnosed like them. We use real scan tools, rail-pressure testing and injector balance rates to find the actual problem on Ram Cummins, Ford Power Stroke and Chevy/GMC Duramax trucks — then we show you what we found before any work is done. Hard starts, smoke, low power, limp mode, DEF and regen warnings, turbo and overheating problems: we fix them every week for customers from Tucson, Marana, Oro Valley and Sahuarita.
Fleets and work trucks welcome. We also handle everything around the engine — diesel transmissions, heavy-duty brakes, front-end and steering, duallys, and lift kits with the alignment to match. Every repair is backed in writing by our 12-month / 12,000-mile warranty, with a free shuttle and financing available.
CP3/CP4 pump testing, injector balance rates, lift pumps, fuel filters and water separators.
VGT turbo actuators and vanes, boost leaks, intake and charge-air cooler testing for low power and smoke.
Regen problems, DEF quality and NOx sensor faults, EGR valves and coolers — repaired to keep the truck legal.
Allison, 68RFE, Aisin and TorqShift service, transfer cases, heavy-duty brakes and front ends.
Weak lift pump, air in the fuel, glow plugs or injector return flow out of spec.
Rail-pressure faults, a sticking turbo, a boost leak or an emissions derate.
Each color points somewhere different — we test rather than guess.
Often a leaking or sticking injector — caught early, it can save the engine.
Frequent regens, DEF quality codes or a derate countdown need attention fast.
Radiator, fan clutch, EGR cooler or a clogged charge-air cooler in Tucson heat.
Ram 2500 & 3500 with the 5.9 and 6.7 Cummins — injectors, CP3/CP4, turbo, DEF and death-wobble front ends.
F-250 to F-450 Super Duty with the 6.0, 6.4 and 6.7 Power Stroke — EGR, oil coolers, turbo and emissions.
Silverado and Sierra HD, LB7 to L5P — CP4 fuel pumps, injectors, DEF/DPF and Allison transmissions.
Our crew tells you straight what your car needs — never an upsell, never a runaround. Just quality parts and repairs done right.
We stand behind every repair — in writing.
Drop your car off — we'll get you to work or home and back.
Domestics, trucks and imports — Chevy, Ford, Dodge, Toyota, Honda, Nissan, Lexus and more.
A Tucson family shop that treats your vehicle like our own.
Scan a code with your camera or tap Apply. Approval takes minutes, and options are available with no credit needed.
Scan • or hold to copy link
synchrony.com/carcare
Promotional financing on qualifying repairs — a familiar name you can trust.
Apply Now
Scan • or hold to copy link
easypayfinance.com › Apply
Pre-qualify in minutes with flexible terms — no credit needed to apply.
Apply Now
Scan • or hold to copy link
americanfirstfinance.com › Apply
Yes starts here — simple, flexible payment plans that fit your budget.
Apply Now
Scan • or hold to copy link
snapf.in/c4MHnZD
Lease-to-own and flexible plans — a fast path to yes on bigger repairs.
Apply NowSubject to approval by each finance partner. We accept cash and all major cards too.
They tell you straight what your car needs — no upselling, no runaround, just honest answers.
30 years in the auto business and this shop finally earned my trust — top quality in every respect.
Same-day diagnosis and repair, honest pricing — I'd give 100 stars if I could.
We scan and inspect with the latest tech to find the real problem — fast, no guesswork.
We tell you exactly what your car needs and what it costs — before we touch a wrench.
Quality parts, careful work, and a 12-mo / 12K-mi warranty in writing. Free shuttle included.
Fastest way to book is a call. Online requests may take up to 24 hours.
Thanks — we'll be in touch soon. Need it faster? Call (520) 624-9250.
Light- and medium-duty diesels: Ram 2500/3500 with the Cummins, Ford Super Duty with the Power Stroke, and Chevy Silverado and GMC Sierra HD with the Duramax — plus diesel vans and half-ton diesels like the 3.0L Duramax and EcoDiesel.
Yes. We have the scan tools to command forced regens, test NOx and DEF quality sensors and diagnose the full aftertreatment system.
We test injector balance rates, return flow and rail pressure before recommending anything, so you're not paying for injectors you don't need.
Usually yes at reduced speed, but if it's overheating or a DEF countdown is near zero, call us first at (520) 624-9250. We're right off N Stone Ave near I-10.
Yes — Allison, 68RFE, Aisin and Ford TorqShift fluid and filter service, diagnostics and repair.
Every repair at C.C. Automotive is backed by a written 12-month / 12,000-mile warranty.
