About us

Gem State Diesel & Turbo Repair was established in 2010 and has established a reputation of superior diesel pickup repair & service in the Boise area.



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We know that you can’t afford downtime. That’s why we work to provide fast turnaround while making sure that we repair your diesel truck right the first time. We specialize in bumper-to-bumper service of Ford, GMC and Dodge diesel pickups.  

Meet our team

John Nesmith
Owner Gem State Diesel & Turbo Repair

John has more than 30 years of experience in the automotive industry. John is an avid auto race car driver and enthusiast with numerous victories.

ASE Certified Master Diesel Technician

Gage is an Idaho native who served our country for 12 years in the United States Navy. He is a ASE Certified Master Diesel Technician with over 25 years of experience in diesel engine service and repair. Gage is certified in Bosch, Stanadyne, Delphi/Lucas CAV, and Denso. Gage is an avid elk and deer hunter. When he’s not in the shop getting your diesel engine running in top shape he can be found hunting, fishing or riding one of his motorcycles.