Top 3 GMC Repair Shops in Knoxville

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

#1

S & S Diesel & Auto Repair

4.7
(120 reviews)
Verified

A local powerhouse known for its deep expertise in diesel performance and repair. While they service all vehicles, they have built a strong reputation for diagnosing and repairing complex issues with Duramax engines and Allison transmissions. They are a top choice for owners of heavy-duty GMC trucks (Sierra 2500HD/3500HD) requiring specialized diesel and transmission work, including performance tuning and towing system maintenance.

1465 W Main St, Galesburg, IL 61401

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Velde Ford

4.4
(180 reviews)
Verified

While a Ford dealership, their highly-rated service department is a well-known and trusted local provider for all truck repairs, including GMC. They possess the advanced diagnostic tools and heavy-duty service bays necessary for complex work on engines, transmissions, and 4WD systems. They are a practical and capable choice for general and specialized mechanical repairs on GMC trucks, especially for customers valuing a established business footprint.

225 W Main St, Knoxville, IL 61448

Specialties & Features

Transmission repair
4WD and towing system service
EcoTec engine diagnostics

Business Information

Years in Business:50 years
Licensed:Yes
Insured:Yes
#3

Uftring Autoworks - Galesburg

4.8
(250 reviews)
Verified

This is the premier service provider in the immediate region for factory-specific care. As a direct competitor to GMC, their service department is expertly trained on the same platforms, including the GM 10-speed transmission, EcoTec3 engines, and complex electronics found in Denali trims. They offer the highest level of technical knowledge for late-model GMC vehicles and have direct access to OEM parts and diagnostic procedures.

206 W Main St, Galesburg, IL 61401

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
Towing package maintenance

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market in Knoxville, IL, reflects its status as a small, rural community. There are no exclusive GMC dealerships within the city itself. The market is characterized by a few long-standing local garages and the necessity for residents to look to neighboring Galesburg for more specialized options. **Average quality** is high among the established providers, as they rely heavily on local reputation and word-of-mouth. **Competition level** is moderate; while there aren't many shops, the ones that exist are well-established and cover a broad range of services. For highly complex or warranty-related work, residents typically travel to the Galesburg or Peoria markets. **Typical pricing** is competitive with national averages but can vary significantly based on the specialist. A local shop like S & S Diesel may offer more competitive labor rates for diesel work than a dealership, while a service department like Uftring Autoworks commands a premium for its OEM expertise, tools, and warranty on repairs. For a standard service like an oil change on a Sierra 1500, expect to pay $75-$120. For specialized work like a Duramax injector replacement or an Allison transmission rebuild, costs can range from $2,500 to $5,000+, depending on the vehicle and the extent of the repair.

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 Knoxville regulations and climate