The Best GMC Repair in Waltonville, IL

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

#1

Jeff's Service Center

4.8
(240 reviews)
Verified

A long-standing, family-owned and operated full-service garage known for its integrity and deep technical expertise. They are a NAPA AutoCare Center, which provides them with access to premium parts and ongoing technical training. They have a strong reputation for diagnosing and repairing complex issues on domestic trucks, including modern GMC models with advanced electronics.

120 S 42nd St, Mount Vernon, IL 62864 (Approx. 8 miles from Waltonville)

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

Years in Business:35 years
Licensed:Yes
Insured:Yes
#2

Mt. Vernon Truck & Auto Repair

4.6
(180 reviews)
Verified

As the name implies, this shop focuses heavily on truck repair and service. They have several ASE Certified Master Technicians on staff with specific experience in heavy-duty suspensions, 4WD systems, and towing package installation and maintenance. They are a go-to for local contractors and individuals with work trucks and heavy-duty GMC Sierra/Sierra HD models.

2901 Broadway St, Mount Vernon, IL 62864 (Approx. 7 miles from Waltonville)

Specialties & Features

Heavy-duty truck suspension
4WD and towing system service
Transmission repair

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

C&R Automotive

4.7
(130 reviews)
Verified

A highly-rated, modern shop that excels in electrical and electronic diagnostics, making them an excellent choice for addressing issues with GMC Denali luxury features, infotainment systems, and advanced driver-assistance systems (ADAS). They combine traditional mechanical repair with advanced scan tool technology.

4615 N Illinois Hwy 37, Mount Vernon, IL 62864 (Approx. 10 miles from Waltonville)

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
General automotive service

Business Information

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

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

** The GMC repair market for Waltonville residents is effectively an extension of the larger Mount Vernon, IL, service area. As a small village, Waltonville itself does not host businesses with the specialized equipment, certifications, or volume of technicians required for the complex services you've listed. Therefore, residents reliably depend on the established and competitive market in nearby Mount Vernon. The average quality of service is high, with several shops boasting long track records and excellent reputations. Competition is strong, which helps maintain fair pricing and a focus on customer service. For specialized work like Duramax injector replacement or Allison transmission rebuilds, you can expect pricing to be in line with regional averages—labor rates typically range from $110-$150 per hour. Shops like Jeff's Service Center and Mt. Vernon Truck & Auto Repair are particularly competitive for heavy-duty mechanical work, while C&R Automotive fills a crucial niche for advanced electronics and diagnostics. For the most complex issues, some shops may still recommend the local GMC dealership for proprietary programming, but these three independent providers are consistently identified by customers as top-tier alternatives offering significant value and personalized service.

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 Waltonville regulations and climate