The Best GMC Repair in Keenes, IL

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

#1

Precision Diesel & Auto

4.8
(187 reviews)
Verified

A highly specialized shop known for its expertise in diesel performance and repair. They are the go-to facility in Southern Illinois for complex Duramax diagnostics, performance tuning, and Allison transmission servicing. They cater extensively to heavy-duty truck owners and those with demanding towing requirements.

1505 S. 10th Street, Mt. Vernon, IL 62864

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty suspension upgrades

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

B&B Service Center

4.6
(214 reviews)
Verified

A long-standing, family-owned repair center with a strong reputation for honesty and comprehensive service. They have multiple ASE-certified technicians with deep experience across the full range of GMC vehicles, from EcoTec engine diagnostics in smaller SUVs to 4WD system service and towing package maintenance for Sierra trucks.

1200 E. McCord Street, Centralia, IL 62801

Specialties & Features

EcoTec engine diagnostics
4WD and towing system service
General GMC maintenance

Business Information

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

Pete's Service Station

4.5
(89 reviews)
Verified

A trusted local provider known for personalized service and expertise in GM vehicles. While they handle all types of repairs, they have developed a strong niche in electronic diagnostics, which makes them a valuable resource for troubleshooting the luxury features and infotainment systems in GMC Denali models.

405 E. Main Street, Salem, IL 62881

Specialties & Features

Denali luxury features and electronics
Transmission service
General GM powertrain repair

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market for residents of Keenes, IL, is characterized by a reliance on reputable service providers in larger neighboring towns such as Mt. Vernon, Centralia, and Salem. There are no dedicated GMC-only dealerships or specialists within Keenes itself. The competitive landscape is therefore regional, with quality shops competing on reputation and specialized expertise rather than location. The average quality of service is high, with several shops boasting long-term reputations and certified technicians. Pricing is generally competitive with national averages but can be slightly elevated for specialized diesel (Duramax) or transmission (Allison) work, reflecting the higher level of expertise and tooling required. Customers in this area show strong loyalty to shops that demonstrate honesty, clear communication, and deep technical knowledge of the GM and GMC platforms. For major specialized work, particularly on diesel engines, residents are willing to travel to a dedicated specialist like Precision Diesel & Auto.

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 Keenes regulations and climate