DBK Mobile Service & Repair

DBK Mobile Service & Repair DBK Mobile Service & Repair is a heavy duty diesel repair business getting you back on the road!

This weeks been off to a busy start. Half way through the week and we’ve put our hands on roughly 10 trucks. Rather that...
06/17/2026

This weeks been off to a busy start.

Half way through the week and we’ve put our hands on roughly 10 trucks.

Rather that be diagnosed units or repaired.

We’re here to help you with all
Of your repair needs.

🛑🛑STOP WHAT YOU’RE DOING🛑🛑

‼️All things commercial heavy duty diesel’s ‼️

🔧OTR TRACTORS🚛
🔧CLASS 8🚚
🔧CLASS 6-7🚛
🔧BOX TRUCKS🚚
🔧TRASH TRUCKS🚛
🔧PLOW TRUCKS🚚
🔧VACUUM TRUCKS🚛
🔧SCHOOL BUSSES🚚
🔧TOW TRUCKS🚛
🔧RV REPAIR🚚
🔧DUMP TRUCKS🚛

‼️ON SITE PREVENTIVE MAINTENANCE‼️

‼️ON SITE DIAGNOSTICS‼️

‼️ON SITE REPAIRS ‼️

‼️AND MORE ‼️

📞Give us a call today to schedule📞

God bless this week 🙏🏻

Another week in the books here at DBK. And a brag session.My son Kane has been shadowing me through his summer break. No...
06/12/2026

Another week in the books here at DBK.

And a brag session.

My son Kane has been shadowing me through his summer break.

Not one time have I had to wake him.

Up at 5:15am everyday ready to hit the road.

Thank god for him everyday ! He’s doing great in life.

🛑🛑STOP WHAT YOU’RE DOING🛑🛑

‼️All things commercial heavy duty diesel’s ‼️

🔧OTR TRACTORS🚛
🔧CLASS 8🚚
🔧CLASS 6-7🚛
🔧BOX TRUCKS🚚
🔧TRASH TRUCKS🚛
🔧PLOW TRUCKS🚚
🔧VACUUM TRUCKS🚛
🔧SCHOOL BUSSES🚚
🔧TOW TRUCKS🚛
🔧RV REPAIR🚚
🔧DUMP TRUCKS🚛

‼️ON SITE PREVENTIVE MAINTENANCE‼️

‼️ON SITE DIAGNOSTICS‼️

‼️ON SITE REPAIRS ‼️

‼️AND MORE ‼️

📞Give us a call today to schedule📞

God bless this week 🙏🏻

We recently serviced a truck experiencing severe body roll when fully loaded, making it feel unstable. This unit had pre...
06/04/2026

We recently serviced a truck experiencing severe body roll when fully loaded, making it feel unstable. This unit had previously been struck on the rear end, resulting in a broken leaf spring, which required us to replace both leaf springs and the frame hanger mounts.

The customer reported continued body roll issues. After a thorough inspection and height measurements confirmed the suspension components were within spec, we identified a failure in the leveling valve. We discovered that failed valves can produce inconsistent output pressures. “ we learned something new”

To resolve the issue, we replaced the leveling valve, the valve rod, and the air bags. After testing the truck with a standard load, we confirmed that this resolved the body roll.

On a personal note, we are thankful for the opportunity to bring our family along with us on these jobs. We are truly blessed. 🙏🏻

We had on our hands a pretty simple replacement here. One of the trucks was in a front end collision and just needed a f...
06/04/2026

We had on our hands a pretty simple replacement here. One of the trucks was in a front end collision and just needed a front bumper replacement.

Do you have a fleet of trucks?

Do you have your own mechanics?

Do you not have mechanics?

We are able to help no matter the circumstances, whether you have mechanics and you have fallen behind or just need diagnostic assistance.

Let us help you get your fleet lined out and back up and operational as quickly as possible.

Give us a call today to discuss.

This is the update on the Mack truck that was brought in last week with over 20 fault codes.Due to the complexity of a v...
06/04/2026

This is the update on the Mack truck that was brought in last week with over 20 fault codes.

Due to the complexity of a vehicle arriving with this many issues, our process involves addressing the most crucial upstream problems first to ensure an accurate diagnosis. We have identified and addressed several key issues within the low-pressure fuel system and the intake system:

- Fuel System: Troubleshooting revealed failed check valves and a faulty low-pressure fuel pump. To resolve this, we replaced the low-pressure fuel pump, the fuel filter housing (as the ball valves are not individually serviceable), and the fuel system quantity control valve.
- Charge Air Cooler (CAC): Regarding the report of a surge at full throttle, we conducted a pressure test and discovered a small leak. We have replaced the CAC with a new unit.

The remaining fault codes are aftertreatment-related. Specifically, the code for aftertreatment fuel pressure likely coincided with the low-pressure fuel system issues we have already repaired. As we were unable to recreate these specific issues during a standard regeneration process, we request that the driver now take the unit and operate it under normal driving conditions.

We want to help you no matter the problem. Whether it be just a simple brake replacement or as complex is this.

 We are currently gauging interest within the off-highway industry regarding mobile service options. While we have typi...
06/03/2026

 We are currently gauging interest within the off-highway industry regarding mobile service options. While we have typically focused on maintaining our own equipment and taking on smaller external jobs—such as recent AC work on a JCB unit and track replacements—we are considering investing in diagnostic software to expand our capabilities.

We would appreciate your feedback on whether there is a significant demand for mobile service versus traditional dealership-level service. We understand that warranty-related issues and certain specialized procedures must remain with the OEM. However, we are looking into providing mobile support for basic procedures, troubleshooting, and regenerations.

Specifically, what types of repairs or services are you typically looking for regarding your skid steer applications?

Let’s hear your advice!!

We have the A/C machine loaded onto the truck. Let’s get you scheduled in for A/C work! The summer heat is coming don’t ...
06/03/2026

We have the A/C machine loaded onto the truck.

Let’s get you scheduled in for A/C work!

The summer heat is coming don’t catch yourself sweating in your car!

Well make sure you’re cool 😎

We have completed the repairs on this vehicle. Although we were initially contacted regarding a hard start, our inspecti...
06/03/2026

We have completed the repairs on this vehicle. Although we were initially contacted regarding a hard start, our inspection identified several oil leaks.

Following their approval of the estimate, we have successfully addressed all of the identified leaks. We have also enjoyed seeing many planes flying overhead this morning in preparation for the upcoming air show this weekend.

🛑🛑STOP WHAT YOU’RE DOING🛑🛑

‼️All things commercial heavy duty diesel’s ‼️

🔧OTR TRACTORS🚛
🔧CLASS 8🚚
🔧CLASS 6-7🚛
🔧BOX TRUCKS🚚
🔧TRASH TRUCKS🚛
🔧PLOW TRUCKS🚚
🔧VACUUM TRUCKS🚛
🔧SCHOOL BUSSES🚚
🔧TOW TRUCKS🚛
🔧RV REPAIR🚚
🔧DUMP TRUCKS🚛

‼️ON SITE PREVENTIVE MAINTENANCE‼️

‼️ON SITE DIAGNOSTICS‼️

‼️ON SITE REPAIRS ‼️

‼️AND MORE ‼️

📞Give us a call today to schedule📞

🛑🛑STOP WHAT YOU’RE DOING🛑🛑‼️All things commercial heavy duty diesel’s ‼️🔧OTR TRACTORS🚛 🔧CLASS 8🚚🔧CLASS 6-7🚛🔧BOX TRUCKS🚚🔧...
06/02/2026

🛑🛑STOP WHAT YOU’RE DOING🛑🛑

‼️All things commercial heavy duty diesel’s ‼️

🔧OTR TRACTORS🚛
🔧CLASS 8🚚
🔧CLASS 6-7🚛
🔧BOX TRUCKS🚚
🔧TRASH TRUCKS🚛
🔧PLOW TRUCKS🚚
🔧VACUUM TRUCKS🚛
🔧SCHOOL BUSSES🚚
🔧TOW TRUCKS🚛
🔧RV REPAIR🚚
🔧DUMP TRUCKS🚛

‼️ON SITE PREVENTIVE MAINTENANCE‼️

‼️ON SITE DIAGNOSTICS‼️

‼️ON SITE REPAIRS ‼️

‼️AND MORE ‼️

📞Give us a call today to schedule📞

From morning exhaust manifold gasket replacements, more diagnostics and parts ordered, to fleet valve adjustments. We wi...
05/29/2026

From morning exhaust manifold gasket replacements, more diagnostics and parts ordered, to fleet valve adjustments. We will get ya covered.

🛑🛑STOP WHAT YOU’RE DOING🛑🛑

‼️All things commercial heavy duty diesel’s ‼️

🔧OTR TRACTORS🚛
🔧CLASS 8🚚
🔧CLASS 6-7🚛
🔧BOX TRUCKS🚚
🔧TRASH TRUCKS🚛
🔧PLOW TRUCKS🚚
🔧VACUUM TRUCKS🚛
🔧SCHOOL BUSSES🚚
🔧TOW TRUCKS🚛
🔧RV REPAIR🚚
🔧DUMP TRUCKS🚛

‼️ON SITE PREVENTIVE MAINTENANCE‼️

‼️ON SITE DIAGNOSTICS‼️

‼️ON SITE REPAIRS ‼️

‼️AND MORE ‼️

📞Give us a call today to schedule📞

God bless this week 🙏🏻

Address

St. Louis, MO

Opening Hours

Monday 6am - 3pm
Tuesday 6am - 3pm
Wednesday 6am - 3pm
Thursday 6am - 3pm
Friday 6am - 3pm

Telephone

+13148258898

Website

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