Diesel Engine Diagnostics
A check engine light, unusual knocking, or changes in exhaust smoke may indicate that your rig needs professional attention to prevent further damage. Hultman Services Inc provides professional diesel engine diagnostic services to find the exact source of performance issues. We rely on advanced testing equipment and practical mechanical experience to accurately identify issues and recommend reliable repairs.
Speak with our team at (316) 867-8284 to address your engine concerns.
What Are Common Causes of Diesel Engine Problems?
Diesel engines are built for strength and longevity, but when something isn’t working properly, you’ll often notice changes in performance. Many engine issues stem from a few key components.
Some of the most common causes we see include:
- Faulty or clogged fuel injectors
- Turbocharger wear or failure
- EGR or DPF system restrictions
- Sensor or electrical issues
- Contaminated or poor-quality fuel
When these problems go unaddressed, they can lead to reduced power, excessive smoke, or hard starting. We can quickly identify the root cause and recommend reliable solutions to keep you moving.
Hultman Services Inc’s Diesel Engine Diagnostic Services
Hultman Services Inc provides diesel engine diagnostics that deliver clear, accurate answers about your engine’s performance.
Our services include:
- Scanning the engine control module for active and stored fault codes
- Testing fuel injectors and fuel delivery components
- Inspecting the turbocharger and air intake system
- Evaluating the EGR and DPF emissions systems
- Analyzing sensors, wiring, and electrical connections
- Verifying engine performance through mechanical testing
By combining electronic diagnostics with hands-on inspection, we ensure accurate results and recommend repairs based on clear findings.
Why Is Your Diesel Engine Making a Knocking Sound While Idling?
A knocking sound at idle often points to uneven combustion or internal engine wear. Common causes include faulty fuel injectors delivering inconsistent fuel, incorrect injection timing, low compression in a cylinder, or worn components like rod bearings. Air in the fuel system or contaminated diesel can also disrupt combustion, leading to noticeable knock.
Diesel engines naturally run louder than gas engines, but a new or worsening knock is not normal. We can test fuel delivery, timing, and engine performance to find the exact cause and prevent further damage.
What Causes a Diesel Misfire?
A diesel misfire occurs when a cylinder fails to fire properly, disrupting the engine’s balance and performance. Since these systems depend on precise fuel injection and high compression, any issue that affects fuel delivery, timing, or cylinder pressure can lead to incomplete combustion. When this happens, you may notice rough idling, shaking under load, reduced power, or excessive exhaust smoke.
A misfire should never be ignored, as continued operation can increase wear and strain on internal components. We can evaluate injection performance, compression levels, and system data to determine the exact source of the problem.
Book Professional Diesel Diagnostics
When performance issues arise, accurate diesel engine diagnostics are the first step toward dependable repairs. Hultman Services Inc’s team combines advanced testing equipment with hands-on mechanical expertise to identify problems correctly and prevent unnecessary work. Whether you’re dealing with a misfire, excessive smoke, warning lights, or loss of power, our thorough diagnostic process ensures your rig receives the right solution the first time.
Looking for diesel engine diagnostics? Contact us at (316) 867-8284.