★ Veteran owned, Family operated.
25 Years.
One Standard.
Done Right.
"We're who the dealerships call when they can't fix it!"
Servicing Chicagoland Since 2003
What We Do
Precision Diagnostics.
Factory-Spec Repairs.
From check engine lights to full transmission work — we fix it right the first time.
Engine Diagnostics & Repair
Advanced computer diagnostics to pinpoint exactly what's wrong — no guessing, no unnecessary work.
Electrical & Wiring
Specialty: electrical problems, wiring, harness issues, module programming — we trace it, fix it.
Airbag & Check Engine Light
SRS and MIL diagnostics done to the component level. Don't ignore warning lights — we get to the root cause.
Brake Service
From squeaky pads to worn rotors, our certified technicians handle it all. Your safety is our priority.
General Maintenance & Repairs
Oil changes, brakes, tires, suspension, and everything in between. Factory-spec work, every time.
Why Choose Us
What Our Customers
Keep Telling Us
"They gave us the news straight and never tried to upsell on parts or services we didn't need."
"They pay attention to details most shops don't know — but that can make a big difference in how well your car runs."
"Bob came to the dealership on his own time to inspect a car I was thinking of buying. He explained everything — I learned more than I knew before."
Real Reviews
Trusted by Families
for Over Two Decades
Rated 5 stars by hundreds of customers
"Bob and the whole team are top notch. Been taking our cars for over 35 years. Trustworthy, honest, fair prices!"
"Richie, Dennis and Derek the son are both great mechanics and great people. Family for over 38 years experience and it shows."
"They treat our family and genuinely want to help. Very knowledgeable and affordable."
"I have a family that owns five vehicles — all run fantastic thanks to Automotive Corrections."
"The Cadillac dealership said my car couldn't be repaired. Bob fixed it."
"Honest pricing, fast turnaround, and they actually explain what's wrong. Found my shop for life."
Also rated ★ 5 stars on Google Reviews.
Who We Are
Not a Franchise.
Just Family.
Bob McDonough, founder and owner of Automotive Connections Services, has been working on vehicles since he was 12 years old growing up on Chicago's north side. Almost three decades of real-world experience means we've seen it all — and fixed most of it. Bob's passion for keenly understanding the engineering on practically anything that moves or carries a current has led him to the exacting expertise he shares with every client. Simply put, Bob is an automotive electrical genius.
ACS isn't a franchise. It's Bob and a team that cares about your car the way you do. Bob has passed his knowledge on to his apprentices, who work diligently to service vehicles of all makes and models all over the Chicagoland area — to factory specs, because your car deserves nothing less. No shortcuts, no guesswork, no unnecessary upsells. Just honest diagnostics and expert repairs from people who treat every vehicle like it belongs to their own family. When dealerships have exhausted their best mechanics without success, they call on ACS.
Mobility is one of ACS's strongest assets. We come to your shop, home, work, or garage — just about anywhere in the Chicago metro area — to service your vehicle.
Ready to Work With Mechanics You Can Actually Trust?
Tell us what you need. We'll get back to you within 24 hours — usually sooner — with an honest assessment. No obligation, no pressure.
- Response within 24 hours
- No obligation estimates
- Honest assessment — no upsells
If ACS cannot repair it, you won't pay for it!
That is the ACS guarantee!