Know exactly what's wrong before you spend a dollar. Our free transmission diagnostic includes a full computer scan, road test assessment, and a written estimate with no pressure to commit.
Mon–Fri 7:30am–6pm · Sat 8am–4pm · 2450 N Lincoln Ave, Chicago, IL 60614
Most shops charge $89–$125 for a transmission diagnostic scan. We include it at no charge because an accurate diagnosis is the foundation of every repair. We've been diagnosing transmissions since 1987 — a proper diagnosis saves you money and prevents unnecessary repairs.
Thousands of Chicago drivers have started with our free diagnostic. Many walk out with a simple fix. Some need a rebuild. Either way, they get the truth — and that's the Chicago Transmission difference.
"Honest diagnosis, fair price, and the repair was done right. Chicago Transmission has been my go-to for years. Wouldn't trust anyone else with my car."
"The free diagnostic alone was worth the trip. They found the problem fast, gave me a written estimate, and completed the work on time. Exceptional service."
"Family owned and it shows. They treated my car like it was their own. The lifetime warranty on my rebuild gives me total peace of mind. Highly recommend."
Yes — no catch. We perform a full diagnostic at no charge. You'll receive a written estimate before any work is discussed, and there is absolutely no obligation.
Typically 30–60 minutes. We'll scan the codes, road test the vehicle, and inspect the fluid. You'll have results before you leave.
Never. Our reputation is built on honest assessments. If you don't need work, we'll tell you. If you do, we'll explain exactly what's needed and why.
Appointments are recommended. Call (312) 555-0180 or walk in during business hours. We'll do our best to get you in same-day.
All codes are diagnosed. We explain what each code means, which are urgent, and which can wait. You get the full picture.
Call or walk in. Free diagnostic. Written estimate. No obligation.
