QUALIFIED GM MECHANICS
When it comes to GM repair and maintenance in Gurnee and throughout Lake County, D. Wells Automotive Service has been the name drivers trust since 1967. We offer a complete range of services to keep your GM vehicle performing at its best — from routine oil changes, tune-ups, and tire service to more complex diagnostics and repairs. No matter which GM brand you drive or what your vehicle needs, our team has the expertise and equipment to handle it all in one place, without the dealership wait times or the dealership bill.
General Motors produces some of the most diverse and widely driven vehicles on the road today, spanning everything from everyday commuters and family SUVs to heavy-duty trucks and high-performance machines across brands like Chevrolet, Buick, GMC, and Cadillac. Keeping such a wide range of vehicles running at their best requires a shop with broad, deep knowledge of GM’s engineering and technology. Our technicians have decades of hands-on experience working across the full GM lineup and are well-versed in GM’s proprietary systems, platforms, and the common issues that affect these vehicles over time.
If your GM vehicle is due for service or something just doesn’t feel right, don’t wait. Contact D. Wells Automotive Service today to schedule your appointment and experience the honest, dependable care that Lake County drivers have been relying on for over 55 years.
Quality Guarantee
All diagnostic work and subsequent repairs are backed by our comprehensive warranty covering up to 3 years or 36,000 miles. We stand behind our diagnostic accuracy and repair quality.
What Makes Our Diagnostics Different:
- Accurate problem identification the first time
- Honest repair recommendations without unnecessary work
- Transparent pricing with detailed explanations
- Fast turnaround to minimize your downtime
GM Repairs, Service, and More!
At D. Wells Automotive Service, we go above and beyond for every GM owner who walks through our doors. Our experienced mechanics take real pride in their work, delivering a level of service that consistently exceeds expectations — whether you’re driving a Chevrolet Silverado, a Buick Enclave, a GMC Sierra, or a Cadillac Escalade. We combine genuine technical expertise with honest, transparent communication, so you always have a clear picture of what your vehicle needs before any work begins. Our facility is equipped with the latest diagnostic technology fully compatible with GM’s proprietary software and Global Diagnostic System, allowing us to accurately read fault codes, interpret onboard data, and pinpoint issues across any GM platform quickly and efficiently.
Our ASE-certified technicians have extensive experience with GM’s engineering across multiple brands, generations, and platforms, from the legendary LS and LT small-block V8 engines to the turbocharged Ecotec four-cylinders, the Duramax diesel found in heavy-duty trucks, and the sophisticated Super Handling All-Wheel Drive systems used across multiple GM models. We’re well-versed in the issues GM owners commonly face, including AFM lifter failures on V8 engines, intake manifold gasket concerns on older V6 motors, transmission solenoid wear, and electrical faults affecting GM’s infotainment and driver assistance systems. No matter the brand, the model, or the mileage, our team has the knowledge and tools to handle it correctly the first time.
Every GM vehicle we service receives a thorough multi-point inspection, and we use quality OEM and premium aftermarket parts on every repair to ensure lasting, reliable results. Experience the difference that decades of dedicated GM expertise can make.
Our Core Services
- Suspension
- Steering
- Tire Services & Alignment
- Exhaust System Repair
- Check Engine Light Diagnostics
- State Inspections
- Pre-Purchase Inspections
Why Choose D. Wells for Your GM?
- ASE-Certified Technicians
- Advanced Diagnostic Equipment
- Quality Parts (OEM or premium aftermarket)
- Transparent Communication
- Family-Owned & Operated (since 1967)
- Warranty Protection
- Convenient Location (serving Gurnee & Lake County)
Common GM Services & Repairs
GM vehicles require specialized attention for several common maintenance and repair needs, and our technicians have the experience and tools to handle all of them. AFM lifter failure is one of the most widespread issues we address on V8-powered Silverados, Tahoes, Suburbans, and Escalades, where the cylinder deactivation system can cause lifter collapse, oil consumption, and a persistent ticking noise that demands prompt attention. Intake manifold gasket failure is a frequent concern on older V6-equipped models, where deteriorating gaskets lead to coolant leaks, overheating, and oil contamination if left unaddressed. Transmission service is equally important across the GM lineup — keeping fluid fresh and catching shift quality issues early goes a long way toward avoiding costly repairs down the road. We also specialize in Duramax diesel maintenance for heavy-duty truck owners, including fuel injector service, diesel particulate filter cleaning, and EGR system maintenance. Rounding out our most common services is electrical system diagnostics, where our technicians use GM’s proprietary tools to accurately resolve infotainment faults, sensor failures, and warning light concerns across all GM brands.
Schedule An Appointment
Don’t trust your GM vehicle to just any mechanic. At D. Wells Automotive Service, we combine expert knowledge, state-of-the-art equipment, and genuine care to keep your vehicle running at its best — no matter which GM brand you drive. Serving Gurnee, neighboring communities, and all of Lake County since 1967, we’re your trusted partner for all GM service and repair needs.