Duramax engines are known for power, torque, and long-haul performance — but like any heavy-duty diesel platform, they need the right hands when something goes wrong. At California Coast Truck Repair, we specialize in servicing and repairing Duramax-powered trucks across San Diego County. From early LB7 models to the latest L5P, we’ve seen every generation of
this 6.6L GM workhorse.
Whether you’re dealing with injector failures, emissions system issues, turbo problems, or full engine diagnostics, our diesel techs know how to get your Duramax
back in fighting shape.
San Diego’s Trusted Shop for Diesel Truck Maintenance
Located in San Diego, California Coast Truck Repair is known for our honesty, expert diagnostics, and unmatched customer service. We specialize in diesel truck maintenance for Ford Power Stroke, Cummins, and Duramax vehicles. Whether you're maintaining a fleet or a single RV, we’ve got the tools, experience, and reputation to keep you rolling.
Common Duramax Problems We Fix:
Duramax diesel engines are tough, but they’re not immune to failure. At CCTR, we regularly diagnose and repair common Duramax issues like failed injectors (especially on LB7 and LBZ models), clogged EGR and DPF systems, turbocharger problems, fuel rail pressure errors, glow plug malfunctions, and sensor faults that lead to power loss or hard starting. Whether you’re running a Chevy Silverado 2500HD, GMC Sierra 3500HD, or managing a fleet, we handle Duramax diesel problems fast and accurately. Our team has experience across all Duramax generations — LB7, LLY, LBZ, LMM, LML, LGH, and L5P — and we know how to get them running right again for work, towing, or long-haul use across San Diego County.
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Reviews
R Burnett
I was very happy with the work that was performed. Donita was very well informing me on cost and time of the repair Vinnny the owner who I met prior to taking my RV there, kept his word . I have been to two other
Facilities and was very unsatisfied, it cost me money to be unsatisfied. But it is nice to find somebody I can trust to repair my motorhome and to answer any questions I have. Thank you, Rick.
John Leija
Knowledgeable! Quick! Trustworthy! Clean!
Rod Beeche
On 07/22/2024 I brought my motorhome to repair a broken engine air conditioner, Donita was the service advisor, she was helpful and professional, I received an estimate for the work and parts needed once they review the problem. I was giving a date of completion for the job and I picked up my Coach on the day promised. The engine air conditioner has been working flawlessly since. I waited to write my review because I wanted to test repair with long term usage. I highly recommend their shop and work ethic, I will not hesitate to bring my coach to them for any future work. Rod
Tim Young
Cal coast did an outstanding job on my RV. Even with a tight deadline. I will be using them for all my truck needs going forward
Ty
Hattie Zuniga
Being a trucking business owner in San Diego sense 1997 we have had several shops work on our Pete's, KW's & diesel pickups. Vinnie, Donita, Henry and the entire crew have consistently come thru & demonstrated the upmost professionalism & integrity of any shop in San Diego. I have brought our trucks from Abilene, TX to be worked on as well & always have 110% complete satisfaction.
Craig Pann, Owner
Ar'tic Containers
American Hazmat Rentals
Visit Us Today!
Avoid costly repairs—routine maintenance is your best investment.
Schedule your diesel oil change in San Diego today.
Location
11366 North Woodside Avenue
Santee, CA 92071
Hours
Mon-Fri 8:00 am - 5:00 pm
Sat-Sun Closed