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Diesel Dr. Diagnostics - Logo

Specialize in Computer Diagnostics

1507 West Fayette Ave
Effingham , IL 62401-1972
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(217) 728-1589
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Diesel Dr. wishes you and your family a safe and happy Easter! We will be closed from Friday, April 18th to Sunday, April 20th.

Superior ECM Diagnostics Services at Budget Prices

Free Estimates  |  Veteran Discounts  |  Warranty Options

Free Estimates

Veteran Discounts

Warranty Options

(217) 728-1589
This is a placeholder for the Yext Knolwedge Tags. This message will not appear on the live site, but only within the editor. The Yext Knowledge Tags are successfully installed and will be added to the website.

Free Estimates

Veteran Discounts

Warranty Options

Expert Diesel Diagnostics in Effingham, IL

Welcome to Diesel Dr. Diagnostics! We pride ourselves on covering all of your diesel and ECM Diagnostic needs. When on the road it is important to ensure everything is functioning properly with your truck. The last thing you’ll want is to have to delay your shipment because you’re on the side of the road waiting for repairs. As the ECM specialists in Effingham, IL that keeps your truck in motion, rely on us for any equipment you may need. Help keep your truck running smoothly with the help of the experts at Diesel Dr. Diagnostics.


With over 20 years of experience in the ECM Diagnostic business, we feel confident we can assist you in whatever way you may need. If you’re interested in a free estimate, don’t hesitate to call us at (217) 728-1589. We look forward to working with you!

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The Diesel Engine Specialists

FREE Estimates on 
All Services

Get FREE estimates now on all your ECM Diagnostics needs. Free estimates are also available for your speed and parameters or basic truck repair needs.

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ECM Specialists
Since 2002

Diesel Dr. Diagnostics has been in the ECM diagnostics business for over a decade. You can count on our 20+ years of experience to assist you and all of your ECM diagnostics needs.
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Speak to a 
Tech Now

Questions about our remote diagnostics?  Want to make an appointment now? Call us today at 217-728-1589 or check out our frequently asked questions.


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Questions about turbo chargers?
Is your charge air cooler leaking?"
Want to make an appointment now?

Call us today at (217) 728-1589

What our satisfied customers are saying...

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Diesel Dr. Diagnostics

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