Top 3 GMC Repair Shops in Shawanee

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

#1

C & C Automotive and Diesel

4.8
(240 reviews)
Verified

A highly reputable, family-owned shop known for its deep expertise in both domestic and diesel engines. They are a top choice for GMC owners needing complex diagnostics and repair, particularly for Duramax engines and Allison transmissions. Their technicians are ASE Certified, and they have a strong focus on honest, customer-focused service.

2829 US-411, Maryville, TN 37801

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

A-1 Transmission & Auto Service

4.7
(180 reviews)
Verified

While "Transmission" is in their name, this well-established shop provides comprehensive automotive care with a renowned specialty in transmission service and repair. They are experts on the Allison transmission series found in GMC trucks and SUVs. They also perform full mechanical repair, including 4WD system service and engine diagnostics.

2719 E Broadway Ave, Maryville, TN 37804

Specialties & Features

Allison transmission repair
4WD and towing system service
EcoTec engine diagnostics

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Diesel Pros of Tennessee

4.9
(95 reviews)
Verified

As the name implies, this provider is a pure specialist focused exclusively on diesel performance, repair, and maintenance. They are the premier destination for complex Duramax diagnostics, performance upgrades, and emissions-related repairs. Their targeted expertise makes them the go-to for serious GMC HD truck owners.

200 Prosperity Dr, Knoxville, TN 37923

Specialties & Features

Duramax diesel service
Towing package maintenance
Heavy-duty truck suspension

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market serving Shawanee, TN is characterized by a reliance on the robust automotive service industries in neighboring Maryville, Alcoa, and Knoxville. As an unincorporated community, Shawanee itself lacks dedicated, high-volume GMC specialists. The market quality is generally high, with several long-standing, family-owned businesses that have built strong local reputations over decades. Competition is healthy, driving a focus on customer service and technical expertise. Typical pricing for specialized services is in line with regional averages: diesel injector service can range from $1,500-$3,000, Allison transmission rebuilds from $3,500-$6,000, and complex electronics diagnostics for Denali models typically start at $150-$200 per hour. Customers are advised to seek shops with specific diesel or transmission certifications for the most complex work, as general mechanics may lack the proprietary tools and training for GMC's advanced systems.

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 Shawanee regulations and climate