Mack Repair in Janesville, WI

Mack Truck Repair in Janesville, WI

Mack trucks are engineered for tough applications, but wear, mileage, and operating conditions eventually take their toll. When issues develop, addressing them early helps prevent secondary damage to related systems. You benefit from repairs that restore performance while supporting long-term reliability.

Common Mack repair needs include drivability issues, fault codes, braking concerns, suspension wear, electrical problems, and aftertreatment warnings. Because Mack systems are tightly integrated, proper diagnostics are critical to identifying the root cause instead of masking symptoms. Taking a precise approach helps reduce repeat visits, unexpected breakdowns, and premature component failure.

Service flexibility also matters. Some repairs are best handled in a controlled shop environment, while others need attention where the truck is parked. With multiple drive-through bays and mobile roadside service, repairs are handled in the way that makes the most sense for your schedule and equipment.

What Makes Us Different

Your operation benefits from capacity, responsiveness, and experience that scale with your needs. Block Diesel Repair operates six mobile units dedicated to emergency roadside service, available 24/7. When a Mack truck goes down on the highway or at a job site, help is dispatched quickly to reduce downtime and safety risks.

For planned service, onsite preventive maintenance supports compliance and helps catch problems before they turn into costly repairs. In the shop, six oversized drive-through bays allow full tractor and trailer access, keeping work moving efficiently. One side of the facility is dedicated to trailers, while the other focuses on trucks, reducing congestion and wait times.

You also gain access to advanced infrastructure, including the largest alignment pit in Wisconsin. Proper alignment plays a major role in handling, tire life, and overall stability—especially for trucks hauling heavy or uneven loads. Industry certifications across major manufacturers and systems ensure repairs are completed using proven procedures.

Operating hours run Monday through Friday from 7:00 AM to Midnight, with 24/7 roadside service available when problems don’t follow business hours.

Contact Us About Mack Repair Now: Call 608-756-2916!

If your Mack truck needs repairs, diagnostics, or roadside assistance, don’t wait for the issue to escalate. Call 608-756-2916 to schedule service or request immediate help. Clear communication and efficient turnaround help you get back on the road with confidence.

FAQs

What Areas Do You Serve for Mack Repair?

We are based at 3248 S Tower Dr in Janesville, WI, near I-90 and I-43. In addition to Janesville, WI, service is provided throughout Roscoe, IL, South Beloit, IL, Rockford, IL, Milton, WI, Madison, WI, Sun Prairie, WI, Freeport, IL, and Monroe, WI. Both in-shop and mobile service are available across this region.

What Are Common Warning Signs That a Mack Truck Needs Repair?

Common signs include warning lights on the dash, reduced power, abnormal noises, uneven braking, or increased fuel consumption. You may also notice rough shifting or handling issues during turns. Addressing these symptoms early helps prevent more extensive repairs.

Can Mack Repairs Be Handled Roadside or Do They Require a Shop Visit?

Some Mack repairs can be completed roadside, especially electrical, air system, or minor mechanical issues. More complex repairs often require shop equipment for accurate diagnostics and calibration. Choosing the right service approach helps reduce downtime and avoid incomplete fixes.

Need Service Now, Or Planning Ahead?

Call 608-756-2916 today to discuss Mack Repair, schedule maintenance, or request 24/7 roadside assistance.