The Best GMC Repair in Fleming, CO

Compare the highest-rated gmc repair mechanics in Fleming, Colorado. All shops are licensed, insured, and verified through our rigorous screening process.

#1

Fleming Service Center

4.5
(45 reviews)
Verified

As the primary full-service garage within Fleming, this center is the first stop for local GMC owners for general maintenance, diagnostics, and common repairs. They are known for their honest service and deep roots in the community, handling everything from oil changes on EcoTec engines to suspension work on heavy-duty trucks. For highly complex transmission or diesel diagnostics, they may partner with or refer to specialists in Sterling.

315 N Park Ave, Fleming, CO 80728

Specialties & Features

EcoTec engine diagnostics
heavy-duty truck suspension
general maintenance
repair

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

S & S Service & Repair Inc.

4.7
(120 reviews)
Verified

Located in Sterling, the primary commercial center for the region, S & S Service is a highly respected and well-established shop known for tackling complex repairs that smaller shops cannot. They have the advanced diagnostic equipment and technical expertise for modern GMC vehicles, including Duramax diesel performance issues, Allison transmission servicing, and sophisticated electronics.

12364 Co Rd 33, Sterling, CO 80751

Specialties & Features

Duramax diesel service
Allison transmission repair
advanced electrical diagnostics

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Sterling Diesel & Auto Repair

4.6
(85 reviews)
Verified

This Sterling-based shop offers a focused expertise that is critical for Fleming's agricultural and hauling community. They specialize in the powertrain and systems most relevant to heavy-use GMC trucks, particularly Duramax diesel engines, 4WD systems, and towing package maintenance. They are the go-to for owners who use their trucks for serious work and towing.

12149 Co Rd 34, Sterling, CO 80751

Specialties & Features

Duramax diesel service
4WD and towing system service
diesel exhaust system repair

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Fleming

** The GMC repair market serving Fleming, Colorado, is characteristic of a rural agricultural region. There is a high concentration of heavy-duty Sierra trucks, particularly those with Duramax diesel engines and Allison transmissions, used for farming, ranching, and towing. The local market within Fleming is limited to a single, trusted general practitioner (Fleming Service Center) that handles day-to-day maintenance and less complex repairs. For specialized services—especially those involving diesel engines, complex transmissions, and advanced electronics—residents reliably travel approximately 20 miles to Sterling, CO. The competition in Sterling is healthy, with several well-regarded shops (like S & S Service and Sterling Diesel & Auto) that have built long-term reputations on expertise and reliability. Pricing is generally competitive and reflective of the specialized skills and equipment required, especially for diesel and transmission work. Customers prioritize proven expertise and the ability to solve complex problems over price-shopping, given the critical role these vehicles play in their livelihoods.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Fleming regulations and climate