Top 3 GMC Repair Shops in Colfax

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

#1

A & D Automotive

4.8
(180 reviews)
Verified

A & D Automotive is a highly respected, family-owned auto repair shop known for its honest service and technical expertise. They have built a strong reputation for diagnosing and repairing complex issues on domestic trucks, with specific praise for their work on GM vehicles, including diesel and transmission services.

803 S Main St, Colfax, IL 61728

Specialties & Features

EcoTec engine diagnostics
Allison transmission service
general drivetrain and suspension repair

Business Information

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

German Auto & Performance (GAP)

4.7
(250 reviews)
Verified

While the name suggests a European focus, GAP has extensively diversified and is widely regarded in Bloomington-Normal as a top-tier shop for all performance and repair needs, including American trucks. They are equipped with advanced diagnostics and have technicians skilled in complex electrical systems and powertrain work, making them a strong choice for Denali electronics and diesel performance.

1506 Greenbriar Dr, Normal, IL 61761 (Approx. 15 min from Colfax)

Specialties & Features

Advanced electronics diagnostics
performance tuning
diesel engine service

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
#3

M&M Automotive

4.6
(190 reviews)
Verified

M&M Automotive is a trusted local shop in nearby Heyworth with a long history of servicing the agricultural and commuter community. They receive consistent positive reviews for their work on trucks and SUVs, with specific mentions of suspension work, transmission services, and dependable general maintenance, which includes towing package components.

311 S Collins St, Heyworth, IL 61745 (Approx. 10 min from Colfax)

Specialties & Features

Heavy-duty suspension repair
transmission service
towing system maintenance

Business Information

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

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

** The GMC repair market in Colfax itself is characteristic of a small, rural community, with one primary, highly-trusted local provider (A & D Automotive) handling the majority of general and semi-specialized needs. For more complex, brand-specific diagnostics—particularly involving Duramax engines, advanced Denali electronics, or performance tuning—residents typically drive 10-20 minutes to the larger Bloomington-Normal metro area. This creates a competitive environment in the surrounding region, ensuring multiple quality options. The competition level is moderate but specialized; while there are many general mechanics, only a handful of shops have the proprietary scanner tools and technician certifications for advanced GMC systems. Pricing is generally in line with midwest averages: standard maintenance is competitively priced, while specialized diesel or transmission work commands a premium due to the required expertise and equipment. Overall, GMC owners in Colfax have access to excellent repair options by leveraging both the local trusted mechanic and the specialized shops in neighboring towns.

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 Colfax regulations and climate