About Pfeiffer: Your One Stop Shop For Brake Repair and Check Engine Light Service


About Us.

Providing expert automotive repair services for over 65+ years.

At Pfeiffer Auto Clinic, our story began in 1959 when Bob Pfeiffer founded our family-owned and operated repair facility in Winthrop Harbor, IL. With a legacy of dedication to quality service, our ASE-certified mechanics offer more than just repairs—they provide a personal touch, treating every vehicle as if it were their own. From quick turnaround times to honest advice and top-of-the-line diagnostic equipment, we're your one-stop shop for automotive care. Trust us to pamper your vehicle with the attention and expertise it deserves.

Call Us Today! We can answer all your questions

(847) 746-8291


Safety Is Our First

We prioritize the well-being of our customers and their vehicles above all else. From expert diagnostics to meticulous repairs, every service we provide is carried out with the utmost care and attention to detail, ensuring your peace of mind on the road.

Safety is our first priority, guiding every aspect of our operations. From the moment you entrust your vehicle to us, our team is dedicated to ensuring your safety and peace of mind. We employ rigorous safety protocols in every service we offer, from comprehensive inspections to precise repairs. Our technicians undergo regular training to stay abreast of the latest safety standards and techniques, guaranteeing that your vehicle receives the highest level of care. With our unwavering commitment to safety, which includes services like brake service, tire rotation, and alignments, you can trust us to keep you and your loved ones protected on the road, mile after mile.

Affiliations & Certifications

Automatic Transmission Rebuilders Association

ATRA – the Automatic Transmission Rebuilders Association – is an international trade association for the professional automatic transmission repair industry. With members across the US and Canada, ATRA’s network of automatic transmission repair professionals can offer you repair and warranty coverage anywhere you are likely to drive. Because, wherever you go – from coast to coast – there is always an ATRA member nearby.

The Transmission Rebuilders Network

The Transmission Rebuilders Network is a world-wide network of over 1,000 actual transmission technicians, interacting on problems, fixes, diagnosis, hydraulics, functions, bench techniques, part locating & reviewing, homemade tools, assembly tips, and installation tips for the transmission repair industry. TRNI members share knowledge, experience, and advice on the science of rebuilding automatic transmissions and the art of managing a transmission shop.

// Service

What We Do.

Routine Maintenance

Vehicle Performance

Additional Services

// Service

Trust our expert team for top-notch care across essential automotive services including transmission, engine, tires, oil & fluids, air conditioning, and emissions, ensuring peak performance, longevity, and environmental compliance for your vehicle.

We Service It All
Call Us!

Oil & Fluids

Experience optimized engine performance, improved fuel efficiency, and prolonged and component lifespan.


Experience enhanced power, efficiency, and reliability with our comprehensive inspection and precision tuning.

Air Conditioning

Ensure your comfort on the road with our comprehensive car air conditioning service.


Experience improved traction, handling, and safety through our thorough inspection and precision maintenance.


Ensure your vehicle's compliance and performance with our thorough emission service


Revitalize your vehicle's performance with our expert transmission service.