Advanced Diagnostics for Trucks
Today's trucks are run by computers as much as by pistons and gears. A single faulty sensor or wiring issue can trigger warning lights, cut power, or leave you guessing about what's wrong. I-55 Truck & Trailer Repair provides advanced diesel truck diagnostics that find the real cause of the problem, not just the code on the dash. We help drivers and fleets across Memphis & West Memphis make informed repair decisions and avoid wasting money on parts that don't fix anything.
Why Choose Us
Answers Backed by Data, Not Guesswork
A fault code tells you where to start looking, but it rarely tells the whole story. Our ASE certified mechanics pair dealer-level scan tools with hands-on testing to confirm exactly which part or system has failed. As a full-service truck repair shop with 25 years of experience, we've learned how to connect symptoms, codes, and live data to solve even the most stubborn problems. You get a clear explanation of what we found and what it will take to fix it.
What We Offer
Testing Every System That Keeps Your Truck Moving
Good diagnostics look at the whole truck, not just one component. We test engine, electrical, air, and emissions systems to find problems early and prevent repeat breakdowns. Here's what our diagnostic service includes:
Computer Scanning and Code Reading: We connect to your truck's control modules to read active and stored fault codes. This gives us a starting point and a history of problems the truck has recorded.
Live Data Analysis: We watch sensor readings, pressures, and temperatures while the engine runs. Live data reveals problems that don't always set a code.
Electrical Circuit Testing: We use meters and wiring diagrams to test circuits, grounds, and connectors. This finds shorts, opens, and corrosion that cause strange electrical behavior.
Engine Performance Testing: Low power, poor fuel mileage, and rough running often have more than one cause. We test fuel delivery, air intake, and boost to pinpoint what's holding your engine back.
Aftertreatment System Testing: We check DPF, DEF, SCR, and EGR system performance to catch problems before they lead to a derate. Early detection helps you avoid costly emissions repairs.
Air System Testing: Air leaks and faulty valves affect braking, suspension, and shifting. We test pressures and components to locate leaks and weak spots.
Intermittent Problem Tracking: Problems that come and go are some of the hardest to fix. We use data logging and road testing to catch issues when they happen.
Mobile Diagnostics: If your truck can't come to us, our technicians can bring diagnostic equipment to your location. We'll identify the problem on-site and recommend the next step.
Frequently Asked Questions
Why can't I just replace the part the code points to?
A fault code shows which circuit or system detected a problem, not always which part failed. Wiring, connectors, or a related component may be the real cause, so proper testing saves money.
How long does a diesel truck diagnostic take?
Simple problems can often be found within an hour or two. Intermittent or complex issues may take longer, and we'll keep you updated as we work.
Do you charge for diagnostics?
Diagnostic time is typically billed separately from repairs because it involves specialized equipment and skilled labor. We'll explain the diagnostic cost before we begin.
Can you diagnose problems on trailers too?
Yes. We diagnose trailer electrical, ABS, and air system problems in addition to truck systems.
What should I tell you before bringing my truck in?
Describe the symptoms, when they happen, any warning lights, and recent repairs. The more details you share, the faster we can narrow down the cause.
Truck Repair Services by System
Expert repairs for every major system on your truck, in the shop or on the road.
MOBILE TRUCK REPAIR AND MAINTENANCE
Our mobile mechanics bring the repair to your truck, whether you're on the roadside, at a truck stop, or in your yard. We handle tires, batteries, forced regens, and routine fleet servicing on-site, 24 hours a day.
ENGINE AND TRANSMISSION
We repair and rebuild diesel engines, transmissions, clutches, cooling systems, and drivelines. From minor fixes to full overhauls, our ASE certified mechanics restore power and reliability.
ELECTRICAL AND DIAGNOSTIC
Advanced diagnostic tools help us find problems fast, from check engine lights to faulty modules. We also repair EGR, DPF, and emission control systems to keep your truck running clean and compliant.
BRAKE AND SAFETY SYSTEM
Safe stopping starts with a healthy brake system. We inspect, maintain, and repair air brakes, ABS, parking brakes, and brake fluid systems to keep you safe and DOT ready.
TIRE & LUBE
We repair, replace, rotate, and balance truck tires, and service suspension parts including shocks, bushings, bearings, and joints. The result is a smoother ride, even tire wear, and longer component life.
EXHAUST & AFTERTREATMENT
Beyond everyday repairs, we handle axle work, truck HVAC systems, and custom welding and fabrication for trucks and trailers. Our preventive maintenance and scheduled fleet programs help you catch problems early and avoid costly breakdowns.
Serving Memphis, West Memphis, and the Mid-South
Shop repairs in Crawfordsville AR and road service throughout the region.
From our shop at 7468 I-55, Crawfordsville, AR 72327, we serve drivers and fleets throughout Crittenden County, the Memphis metro, and nearby communities in Arkansas, Tennessee, and Mississippi, including:
Need a Trusted Truck Repair Shop Near Memphis?
Call now for shop repairs or 24/7 road service.
Whether you are passing through on I-55 or running a fleet out of West Memphis, I-55 Truck & Trailer Repair is ready to help. Call us or request service online, and we'll get you back on the road.
I-55 Truck & Trailer Repair is a trusted truck and trailer repair shop on I-55 in Crawfordsville AR, with 25 years of experience serving drivers and fleets across Memphis & West Memphis. Our ASE certified mechanics handle diesel repair, trailer repair, and 24/7 roadside service to get you back on the road fast.
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