QUALIFIED CADILLAC MECHANICS
D. Wells Automotive Service is Gurnee’s trusted destination for Cadillac repair and maintenance, proudly serving drivers throughout Lake County since 1967. We offer a full spectrum of services to keep your Cadillac performing at the level you expect — from routine oil changes, tune-ups, and tire service to more complex diagnostics and repairs. No matter what your vehicle needs, our team has the expertise and equipment to handle it all in one place, saving you time and giving you peace of mind.
Cadillac has defined American luxury for over a century, producing vehicles that blend bold performance with sophisticated comfort and cutting-edge technology. Maintaining that standard of excellence requires a shop with genuine knowledge of what makes these vehicles tick. Our technicians have years of hands-on experience working across the full Cadillac lineup, from the refined CT4 and CT5 sedans to the commanding Escalade and the performance-driven V-Series models. We understand the precision engineering behind every Cadillac and bring that same level of dedication and care to every service we perform.
Your Cadillac deserves the best — don’t settle for anything less. Contact D. Wells Automotive Service today to schedule your appointment and experience the honest, expert 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
Cadillac Repairs, Service, and More!
At D. Wells Automotive Service, we understand that Cadillac owners expect more — and we deliver. Our experienced mechanics approach every job with the thoroughness and precision that these vehicles demand, going well beyond the basics to provide service that truly reflects the quality your Cadillac was built with. We pair genuine technical expertise with straightforward, honest communication, so you always have a clear picture of what your vehicle needs before any work begins. Our facility is equipped with advanced diagnostic technology fully capable of interfacing with Cadillac’s sophisticated onboard systems and GM’s proprietary software, allowing us to pinpoint issues quickly and accurately every time.
Our ASE-certified technicians have extensive experience with Cadillac’s engineering across a wide range of models and generations, from the supercharged V8 engines powering the high-performance V-Series lineup to the turbocharged four-cylinders in the CT4 and the air suspension systems found in the Escalade. We’re well-versed in the issues Cadillac owners commonly encounter, including timing chain wear on Northstar and other V8 engines, air ride suspension faults, oil consumption concerns, and the electrical and sensor-related faults that can trigger warning lights across Cadillac’s advanced driver assistance and infotainment systems. No matter how routine or complex the job, we have the knowledge and tools to handle it correctly.
Every visit includes a comprehensive multi-point inspection, and we use quality OEM and premium aftermarket parts on every repair to ensure your Cadillac continues to perform the way it was meant to. Experience the difference that real expertise and genuine care 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 Cadillac?
- 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 Cadillac Services & Repairs
Cadillac vehicles require specialized attention for several common maintenance and repair needs, and our technicians have the experience and tools to handle all of them. Air ride suspension service is one of the most frequent issues we address, particularly on Escalade and other full-size models where the air compressor, air springs, and suspension sensors can wear over time, leading to ride height problems, a rough or uneven ride, and warning lights on the dash that require prompt diagnosis and repair. Timing chain wear is another well-documented concern, especially on older Cadillac V8 engines, where a stretched or failing timing chain can cause rattling on startup, poor engine performance, and in severe cases significant internal engine damage if left unattended. Oil consumption is a common issue on certain Cadillac engines as well, where worn piston rings or valve seals allow oil to burn off gradually, making regular oil level checks and timely repairs essential to protecting the engine long term. We also frequently service Cadillac’s advanced electrical and infotainment systems, diagnosing faults with the CUE infotainment system, driver assistance features, and the various sensors and modules that can generate warning lights as these vehicles accumulate miles. Additionally, transmission service is a regular maintenance need for Cadillac owners — keeping the fluid fresh and the system properly maintained goes a long way toward ensuring smooth, reliable shifting and preventing costly repairs down the road. Our technicians have the specialized diagnostic tools and firsthand Cadillac expertise to identify and resolve these issues efficiently and get you back on the road with confidence.
Schedule An Appointment
Don’t trust your Cadillac to just any mechanic. At D. Wells Automotive Service, we combine expert knowledge, state-of-the-art equipment, and genuine care to keep your luxury vehicle running at its best. Serving Gurnee, neighboring communities, and all of Lake County since 1967, we’re your trusted partner for all Cadillac service and repair needs. Call or Book today!
