The Best GMC Repair in Philadelphia, PA

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

#1

A.D. Engine Performance

4.8
(240 reviews)
Verified

Widely regarded as the premier diesel and transmission specialist in the Philadelphia area. They are known for deep technical expertise, particularly with complex Duramax and Allison systems. They cater heavily to owners of heavy-duty Sierra trucks and vehicles used for towing and commercial purposes. Their reputation is built on solving problems that dealerships cannot.

2139 E Norris St, Philadelphia, PA 19125

Specialties & Features

Duramax diesel service
Allison transmission repair
rebuild
Heavy-duty truck suspension

Business Information

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

Lee's Automotive

4.7
(180 reviews)
Verified

A highly reputable, family-owned auto repair shop with a long history of servicing American trucks and SUVs. They receive consistent praise for their honest diagnostics, quality workmanship, and expertise with GMC's full range of engines, including the EcoTec3 line. They are a strong all-around choice for general maintenance, complex diagnostics, and transmission service.

744 N 25th St, Philadelphia, PA 19130

Specialties & Features

EcoTec engine diagnostics
Transmission repair
Towing package maintenance

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

M & S Auto Repair

4.6
(150 reviews)
Verified

A well-established shop known for its technical competency with modern vehicle systems, including the electronics and luxury features found in GMC Denali models. They excel at electrical diagnostics, AWD/4WD system service, and providing comprehensive repair services that blend mechanical expertise with advanced computer systems knowledge.

2119 S 17th St, Philadelphia, PA 19145

Specialties & Features

Denali luxury features and electronics
4WD system service
Advanced diagnostics

Business Information

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

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

** The GMC repair market in Philadelphia is competitive and segmented. The highest concentration of general expertise lies with the established dealership network (e.g., Ciocca GMC), which is the default for warranty work and recall services but is typically the most expensive option. The independent market is divided into two tiers: 1. **Generalists:** Many shops can handle basic maintenance on GMC vehicles (oil changes, brake service) but lack the specialized tools and training for complex diesel, transmission, or electronic issues. 2. **Specialists:** A smaller group of highly-rated independents, like those listed above, have carved out a niche by investing in specific training and equipment. These shops compete directly with dealerships on quality, often at a 20-30% lower labor rate, and are the preferred choice for out-of-warranty vehicles and specialized repairs. Typical pricing reflects this segmentation. General maintenance (oil change, tire rotation) ranges from $90-$150. Specialized work commands a premium; a Duramax injector replacement can range from $1,500-$3,000+, while an Allison transmission rebuild can be $4,000-$7,000+. The specialists listed are considered the value leaders for complex repairs, offering dealership-level quality without the dealership markup.

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 Philadelphia regulations and climate