- 7451 Lemhi St Boise, ID 83709
- 208.343.0732
- 208-921-0772
- 1950 W Franklin Rd, Meridian, ID 83642
Whether your Sierra is hauling up to Bogus Basin or your Yukon is running the daily routine, you want a shop that understands GM engineering and heavy-duty demands. Naylor's Auto Repair has delivered honest, ASE-certified GMC auto repair in Boise since 1992, pairing dealer-level diagnostics with the personal service of an independent shop. From a quick oil change to a Duramax diesel repair, we keep your GMC truck or SUV strong and reliable without dealership markups.
We service the full GMC lineup, including the Sierra 1500, 2500HD, and 3500HD, along with the Yukon, Yukon XL, and Denali trims. We also handle the Canyon, Acadia, Terrain, and Savana vans. Qualifying repairs are protected by a 2-year/24,000-mile NAPA warranty that travels with you, whether you commute across town or tow up into the mountains.
Every model has its known weak points, and we have repaired them all. We resolve engine misfires and rough idling, oil leaks, and timing chain wear, along with ignition coil and spark plug failures. On higher-mileage trucks we address transmission slipping, delayed shifting, and torque converter concerns, as well as Body Control Module and electrical faults that trigger dashboard warnings.
GMC's diesel trucks earn their keep, and they need technicians who understand them. We service the 6.6L and 3.0L Duramax diesel engines in Sierra HD and 1500 trucks, handling fuel injectors, turbochargers, EGR and DPF maintenance, and DEF system faults. If you tow through Idaho summers, we check trans coolers, brakes, and weight ratings as part of smart towing preparation, and we keep local work vehicles earning with dependable fleet maintenance.
Routine care protects both reliability and resale value. Our preventive maintenance covers oil and filter changes, transmission fluid service, coolant flushes, and brake inspections at the right intervals. We also dial in your wheel alignment to protect tire life on heavier trucks and SUVs, catching small issues before they become expensive ones.
As a family-owned shop, we explain exactly what your GMC needs, offer OEM and quality aftermarket parts, and stand behind every repair with complimentary inspections and loaner cars on qualifying work. We proudly serve drivers across the Treasure Valley, including Meridian, Eagle, Garden City, Kuna, Nampa, and Caldwell.
Yes. We service the 6.6L and 3.0L Duramax in Sierra HD and 1500 trucks, including fuel systems, turbochargers, EGR, DPF and DEF systems, and glow plugs, using dealer-level scan tools.
No. Servicing your GMC with us does not void your factory warranty. We follow GM service standards and give you documentation to keep on file.
It can mean anything from a loose gas cap to a misfire or sensor fault. If your check engine light is on, we run a full diagnostic and explain the fix before any work begins.
Plan an oil change every 5,000 to 7,500 miles, with transmission, cooling, and brake service intervals based on your model and how you tow or drive in Idaho conditions.
Keep your GMC strong for work and the mountains with a team that knows GM systems. Call Naylor's Auto Repair at 208.343.0732 or request an estimate online to book honest, expert GMC service in Boise.
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