Heavy-Duty Diagnostics & Electrical Repair Services in Tyler, TX

Are you experiencing issues with your heavy-duty truck's performance? Hex 6 Diesel Services, located in Tyler, TX, specializes in diagnostics and electrical repair for all your heavy-duty needs. Discover our expert services that keep your vehicle running smoothly.

Diesel mechanic performing diagnostics and electrical repair services in Tyler, TX

What Software Is Used to Diagnose Trucks?

At Hex 6 Diesel Services, we employ state-of-the-art diagnostic software, such as JPRO, TEXA, and Cummins Insite. These tools provide accurate, detailed insights into your truck's health, ensuring precise and efficient repairs.

The Repair Process

At Hex 6 Diesel Services, we follow a meticulously planned repair process. Our approach to heavy-duty diagnostics and electrical repair involves several key steps:

Initial Consultation: We begin by discussing the issues you're experiencing with your truck. This helps us get a clear understanding of the potential problems.

Diagnostic Testing: Utilizing advanced software, we conduct thorough diagnostics to pinpoint the exact issues, whether they are engine-related, electrical, or other mechanical faults.

Detailed Reporting: After diagnostics, we provide a comprehensive report detailing the identified issues, potential causes, and suggested repairs.

Repair Plan: We develop a customized repair plan, prioritizing critical repairs to ensure your truck's optimal performance and safety.

Quality Repairs: Our team of skilled mechanics, equipped with the latest tools, performs the necessary repairs, adhering to the highest standards of quality and efficiency.

Final Testing and Validation: Post-repair, we conduct final tests to ensure that all issues have been resolved and your truck is in top condition.

Customer Review and Feedback: We value your input and encourage feedback post-repair to ensure your complete satisfaction.

Truck Electrical Repair in Tyler, TX

Electrical issues in heavy-duty trucks can be complex and challenging. At Hex 6 Diesel Services, we specialize in diagnosing and repairing electrical problems, from wiring issues to malfunctioning electronic control units. Our team is equipped to handle all electrical repair needs with precision and expertise.

If you're in need of diagnostics and electrical repair for your heavy-duty truck, get in touch with Hex 6 Diesel Services in Tyler, TX, today!

Types of Vehicles We Work On 

Our highly skilled team is also able to carry out diagnostic and electrical repairs on a range of on- and off-highway vehicles, including: 

  • Oil and gas industry equipment 
  • Agriculture equipment 
  • Municipality vehicles 
  • Heavy equipment
  • Commercial on-highway trucks, trailers and tankers
  • RVs and buses
  • Diesel trucks

FAQs

Why Does a Heavy-Duty Truck Have Electrical Problems That Only Happen While Driving?

Intermittent electrical faults can appear only when vibration, heat, or vehicle movement affects a weak connection. Loose grounds, damaged harnesses, corroded connectors, or failing relays may test normally in the shop, so technicians often need live testing while the truck is operating.

What Causes a Diesel Truck to Crank but Not Start With No Clear Fault Code?

A crank-no-start condition without a useful fault code may involve low battery voltage, poor grounds, sensor signal loss, damaged wiring, relay problems, or communication faults between control modules. Testing power, ground, signal, and network circuits can narrow down the failure.

How Do Technicians Diagnose a Parasitic Battery Drain on a Commercial Truck?

Parasitic drain testing measures how much current continues flowing after the truck is shut down. Technicians isolate circuits, modules, accessories, relays, and wiring until the excessive draw is identified, which helps prevent repeated dead batteries and unnecessary battery replacement.

Why Does a Heavy-Duty Truck Keep Blowing the Same Fuse?

A fuse that repeatedly blows usually indicates an electrical problem rather than a bad fuse. Shorted wiring, damaged insulation, overloaded circuits, failing motors, or faulty components can create excessive current, so the affected circuit should be tested before another fuse is installed.

How Do You Get to Hex 6 in Tyler?

Truck and equipment owners visiting Hex 6 for diagnostics and electrical repair can find the shop at 5406 FM 850, Tyler, TX 75705. Major roads around Tyler provide access to FM 850 on the northeast side of the city. Drivers arriving from I-20 can take US-271 south toward Tyler before connecting with local roads that lead to FM 850. Another route from central Tyler follows Loop 323 to US-271, then continues northeast toward the Hex 6 area.

Follow the connecting roads to FM 850 and continue toward Hex 6. A nearby Shell gas station provides a useful reference point during the approach. Hollywood Door of Tyler is another business in the area that drivers may notice as they get closer.

Areas Also Serve For Diagnostic and Electrical Repairs in Texas

As well as Tyler, TX, we also proudly bring our diagnostic and electrical repair service to the following surrounding areas, Longview, TX, Kilgore, TX, Jacksonville, TX, Henderson, TX, Athens, TX, Palestine, TX, Sulphur Springs, TX, Marshall, TX, Nacogdoches, TX, Lufkin, TX, Corsicana, TX, Dallas, TX, Plano, TX, Garland, TX, Mesquite, TX, Terrell, TX, Greenville, TX, Mount Pleasant, TX, and Paris, TX.

Repair

Heavy-Duty Truck & Equipment Repair Services

From engine rebuilds and axle & brake repairs to hydraulic systems, EGR/DPF, diagnostics, welding & fabrication, and undercarriage work - Hex 6 handles the full scope of heavy-duty diesel repair. Our technicians are experienced across semi-trucks, construction equipment, agricultural machinery, oil & gas equipment, and municipal vehicles. Whatever your equipment runs on diesel, we can fix it.

Our Customer Reviews

See what our recent customers are saying about our services.

Cannot say enough good things about Caleb and the crew here. I travel for work and the rig is what gets me there. Although they couldn’t fix my issue within my tight schedule they still diagnosed everything and gave me good info about where to safely bunk down until my company brings another vehicle in. If I ever find myself in this part of Texas with an issue again - I know who I’m calling.
Hex 6 is resourceful and helpful! We were on a summer road trip when our camper’s suspension broke on the interstate, leaving us stranded and needing to stay overnight in Tyler. Hex 6 provided useful information during a challenging time even when they didn’t have the part. We truly appreciated the assistance and support. Thank you for helping us get back on the road!
Great people and great service. They were able to find the part i needed at a reasonable price. Very efficient service got me in and out quick. Will definitely go there again. Highly recommend.
Great job fixing our truck and excellent communication,
I'm very happy with the service I received from Hex 6 I highly recommend this shop.
Great shop to have your vehicle truck or pick up what ever you drive this is the shop for you experience knowledgeable professional and hardly no down time excellent work and the people in Tyler Texas are so awesome courteous and help you threw the whole process all the personal at the shop great people thank you so much for all your help.
Second repair to my 30HP Kubota at Hex6. Axle issue first and steering second. Timing was good to complete considering their shop load. Cost in line or better than other options. Good staff. Most pleased overall.
Wow, what a great Company. Caleb was in constant contact and the bill came out much less than the estimate! The technician was on time, very knowledgeable and the job was done quickly. I will use them every time for my tractor work! Thanks Hex 6!
Hex 6 did a great job on my work truck. They did a full in frame rebuild. The service was fast and my truck has never run better. I took it back for regular schedule PM and they had me in and out the next day. Will only use them moving forward!!

Contact HEX 6

Hex 6 serves Tyler, TX and the surrounding East Texas area from our 36-bay shop and a fleet of mobile service trucks - available for scheduled maintenance, emergency roadside assistance, and on-site repairs for trucks, trailers, and equipment. Can't bring it to us? We'll come to you.