The Best GMC Repair in Knoxville, AR

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

#1

Coontz Auto & Diesel Repair

4.7
(180 reviews)
Verified

A highly reputable, family-owned shop known for its deep expertise in both gasoline and diesel engines. They are a top choice for GMC Sierra and Denali owners in the River Valley, praised for their honest diagnostics, quality workmanship, and ability to handle complex electrical and drivetrain issues. They frequently service trucks used for towing and farming.

1207 E Main St, Russellville, AR 72801

Specialties & Features

Duramax diesel service
Allison transmission repair
heavy-duty suspension

Business Information

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

River Valley Transmission & Auto Care

4.5
(120 reviews)
Verified

As the name implies, this shop has a stellar reputation for transmission work, including the robust Allison transmissions found in GMC trucks. They have expanded their services to become a full-service garage, with specific skills in 4WD system service, differential work, and engine diagnostics, making them a strong contender for comprehensive GMC care.

2416 W Main St, Russellville, AR 72801

Specialties & Features

Allison transmission repair
4WD system service
EcoTec engine diagnostics

Business Information

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

Crain Automotive Team - Russellville

4.3
(250 reviews)
Verified

While this is a multi-brand dealership, it is the *only* factory-authorized GMC service center in the immediate region. This provides a significant advantage for owners of newer models, especially those under warranty or requiring proprietary software updates for Denali electronics, advanced towing systems, and the latest 10-speed transmissions.

3119 W Main St, Russellville, AR 72801

Specialties & Features

Denali luxury features and electronics
factory towing package maintenance
GMC-specific certifications

Business Information

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

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

** The GMC repair market servicing Knoxville, AR, is characterized by a reliance on the broader Russellville area for specialized expertise. Within Knoxville itself, general auto repair shops exist, but they typically lack the specific diagnostic tools and certified technician training for complex GMC diesel, transmission, and electronic systems. The competitive landscape is therefore concentrated in Russellville, approximately a 15-minute drive away. The average quality of service for GMC-specific needs in this market is good, with several established, reputable providers. Competition is healthy but not oversaturated, leading to fair pricing. For standard services, labor rates are typically in the $90-$120/hour range. However, for specialized diesel (Duramax) or transmission (Allison) work, labor rates can be higher, reflecting the required expertise and equipment. Customers have a clear choice between the factory-trained technicians and OEM parts at the dealership (Crain) and the often more personalized, and sometimes more cost-effective, service from highly-rated independents (Coontz, River Valley Transmission). For major repairs on heavy-duty GMCs, owners from Knoxville regularly seek out these specialists.

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