Experienced Technicians
Skilled & certified professionals
Plainfield, IL · Serving Joliet, Naperville & Will County · Diesel Truck & Trailer Repair Shop
Full-service diesel repair, diagnostics, and preventive maintenance — keeping your fleet moving in Plainfield, IL and beyond.
Why Choose Us
Skilled & certified professionals
We use high-quality parts & equipment
We get you back on the road – fast
About the Shop
A full-service diesel shop trusted by owner-operators and fleets.
Soft Trans Auto is a diesel truck and trailer repair shop with 15+ years of experience, serving owner-operators and fleets with honest diagnostics, quality repairs, and fast turnaround. Our team speaks English, Romanian, and Russian — so communication is never a barrier when your truck is down. We proudly serve owner-operators and fleets throughout Plainfield, Joliet, Naperville, Romeoville, Bolingbrook, and the greater Will County area. Whether you need a single repair or an ongoing fleet maintenance plan, our shop is equipped to handle trucks and trailers from every major manufacturer.
What We Do
Full diesel truck & trailer repair — from routine maintenance to major repairs.
From check-engine lights to full engine rebuilds — accurate diagnostics and lasting repairs.
Keeping your truck safe and stable on every mile of the road.
Cab comfort, cooling systems, and reefer units kept in working order.
Fast lube service, tire repair, and DOT inspections to keep you legal and on schedule.
Scheduled care that prevents breakdowns before they happen.
Shop rate $100–$130/hr depending on the job. Call for an estimate on your truck.
Know the Warning Signs
Know the warning signs — and call us before a small issue becomes a big one.
The most common reason for a no-start situation. Check the charge and condition of the battery.
The alternator may not be charging the battery — the electronics and systems may shut down.
Worn pads, leaks or low air pressure can lead to brake failure — a serious safety risk.
Low coolant level, faulty thermostat or radiator can cause the engine to overheat.
Cracks, wear and tear can cause hoses or belts to break, leading to serious damage.
Inside the Shop
A look inside Soft Trans Auto.
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What Drivers Say
Real reviews, straight from our Google Business Profile.
Highly recommend this shop! They fixed my truck quickly, explained everything clearly, and charged a fair price. The customer service was outstanding, and the quality of the repair exceeded my expectations. Thank you for getting me back on the road!
Finally found a repair shop I can trust. Brought my truck in with several issues, and the team diagnosed and fixed everything fast. They kept me updated throughout the process and got me back on the road without unnecessary delays. Outstanding service and very knowledgeable mechanics. Definitely coming back!
I had a great experience with this truck repair shop. The team was professional, honest, and worked fast to get my truck back on the road. They explained the problem clearly and the price was fair. You can tell they really know what they’re doing. I highly recommend this shop to any truck driver looking for reliable service.
Great service and very professional team! Thank you for repairing my trailer quickly and efficiently. The work was done professionally, and I’m very satisfied with the result. I really appreciate your help and highly recommend this company to anyone who needs repairs!
They fixed a ABS issue that other two shops couldn’t even find what caused the problem
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For Fleets & Owner-Operators
Keep your whole fleet running with scheduled preventive maintenance built around your routes.
Fleet membership maintenance from Soft Trans Auto means fewer surprise breakdowns and less downtime — scheduled service plans tailored to how your trucks run.
Simple Process
Tell us what's going on with your truck.
Fast, honest assessment.
Know the cost before we start.
Quality repair, fast turnaround.
Good to Know
Our shop rate is $100–$130 per hour, depending on the type of work.
Yes — we handle full truck and trailer repair, not just tractors.
Monday–Friday 8AM–6PM, Saturday 8AM–12PM, closed Sunday.
Yes, DOT inspections are part of our regular services.
Our team speaks English, Romanian, and Russian.
Yes — ask about our fleet membership maintenance program for scheduled, predictable service.
Get Back on the Road
Call now or request a quote — we'll get you back on the road fast.