Customer Reviews — ECM Repair USA

Reviews about ECM Repair Services in USA

★★★★★

4.8 out of 5  ·  47 verified Google reviews

Truck fleets, boat owners, RV travelers, and shops across the United States send us their control modules. Below are the reviews they have left us.

ECM Repair USA is the service brand of ECM Engineering LLC, based in Mount Dora, Florida.

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What Customers Mention Most

  Faster turnaround than local suppliers, even from thousands of miles away.

  Clear communication from the moment the module arrives to the day it ships back.

  Obsolete and discontinued modules repaired instead of replaced.

  Fair pricing compared with dealer replacement units.

  Every commitment honored, including the jobs that could not be completed.

The reviews below are grouped by the type of equipment we serviced, with the most recent first.

Heavy-Duty Trucks & Fleets

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M3 G
★★★★★  Local Guide · January 2026

its being 4 monts since these guys repaired my ecm on my volvo d12 and truck is running without problem truck was cranking and no start and trowing all possible codes these people saved me a lot of time and money thats why i came back after 4 mots go review them BIG THANKS

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Auri Birbilas
★★★★★  July 2025

This is a real deal. Very happy and thankful for the service provided on my Volvo ECM. We had a tough situation where my ECM unit was obsolete, needed to be replaced and the guys with ECM Engineering LLC really came through and made it happen. Highly recommend!

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roadrunner
★★★★★  Local Guide · June 2025

My Volvo truck broke down late on a Friday after getting loaded in South C Saturday called ECM E. they had the ECM reprogrammed, they arranged to meet me that same night I rent it a car drove to Orlando got the module and Monday I was in New York delivering. This guys will go out of their way to solve a problem. And Truck is running great. Excellent service..

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Carlos Andrés Carrillo Quintero
★★★★★  December 2024

ECM diesel truck was repaired with a great result! My truck is ok, like new with a better cost compared with the new ECM.

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James Alonso
★★★★★  December 2024

Outstanding service and fast turnaround time. I just reinstalled the repaired ECM on my truck, and it started up perfectly. Much appreciated!

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Byron Brooks
★★★★★  March 2024

Excellent service, quick turnaround. Just reinstalled the repaired ECM on my truck and it fired right up. Thanks!!

Heavy duty ECM repair services →

Marine Engines & Boat Owners

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Mark Ramsey
★★★★★  August 2026

Very prompt, the compassion and professionalism they showed me was so impressive. I would highly recommend them to anyone and everyone. Armando personally overlooked my repair service and went as far as dropping off the ECU personally for overnight shipping to get it to me in time to install in our boat so my wife and I could take it with our family on vacation. We cannot say enough kind and wonderful things about the team, thank you ECM Engineering for the fast turn around and stellar service....

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Justin Post
★★★★★  August 2026

They were able to clone/repair a bad ECM from a boat engine, and did so in a timely manner with excellent communication. I hope I don't need to use them again, but I absolutely would recommend them if you're looking for ECM services.

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John Spitzig
★★★★★  Local Guide · September 2025

Fantastic.20 stars. Repaired and programmed my Merc cruiser ECM promptly and at a great price GOOD COMMUNICATION FROM THE START TO THE FINISH AND THE EXPEDITE SERVICE WAS ONE DAY! These people know what they're doing when it comes to mercury and MerCruiser.

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Plinio Pastor Palmieri P.
★★★★★  Local Guide · November 2023

I cannot thank the team at ECM Repair enough for their exceptional service in repairing my boat's ECM. They were quick to respond and helped me through every step of the process, making sure I understood what needed to be done. Thanks to them, my boat is back up and running smoothly again. Their dedication to their customers' satisfaction truly sets them apart from any other repair service. Highly recommend!

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Terence Deese
★★★★★  Local Guide · November 2023

I recently had the pleasure of availing the services offered by ECM Engineering LLC USA, and I must say, they exceeded my expectations in every way possible. From the moment I contacted their team, I was met with professionalism and a genuine desire to help. The technicians were prompt, knowledgeable, and worked efficiently to diagnose and repair my Boat ECM. I would highly recommend ECM Engineering USA to anyone in need of ECM repair services.

Marine ECM repair services →

Diesel Pickups, RVs & Motorhomes

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Frank Goodwin
★★★★★  Local Guide · February 2026

Great customer service. Thank you to team ECM. Everyone here has great people skills and they know their stuff Original owner of an 03 duramax and these guys rocked it. She's alive and I can't thank you enough Live local to them so the turn around was amazing. Highly recommend all of diesel community here in Orlando to use their services. They are located in down town Mt Dora

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Kade Dimick
★★★★★  June 2025

Great Experience and Great customer service! I called and asked about the process and explained my problem was helped immediately, Only took about a week like they said. I let them know I needed it by a certain date and it was done and back in my possession! Put it back in and the Motorhome and it fired right up! Definitely recommend!

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denny montero
★★★★★  December 2024

Excellent service, this is the second ECM they have repaired for me..

Light duty ECM repair services →

Industrial, Agricultural & Machinery

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Spencer Fitzpatrick
★★★★★  March 2024

These guys were very helpful! They did a great job helping me get my John Deere ECU shipped out and to them so they could test it for me. Saved me from buying a 1900.00 new ECU. Now mine is back and the machine is up and running again.

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fernando montalvo
★★★★★  November 2023

ECM Engineering USA, is simply the best when it comes to ECM repair services. I had a faulty ECM in my machinery and they were able to diagnose and fix the issue quickly and efficiently. Their attention to detail and commitment to customer satisfaction is unmatched. I can confidently say that ECM Engineering LLC USA deserves five stars for their outstanding service.

Agricultural & machinery ECM services →

Standing Behind Every Job

Our warranty and refund commitment holds regardless of the outcome. These customers took the time to describe how we honored it.

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Adolfo
★★★★  November 2025

Two genuine CAT EIS boards were sent for repair and, upon receipt, were tested but neither was functioning. After a second warranty repair attempt, the issue remained unresolved. I was reimbursed as agreed. The service was fair and professional.

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Jason Masters
★★★★★  January 2025

I scheduled an ECM repair with ECM Engineering, but unfortunately, UPS lost the package. ECM Engineering was the first to contact me about the issue and quickly refunded my money without any hassle. Their customer service was helpful and easy to work with. I really appreciate how they handled everything. Although I didn't have the chance to get my device repaired here, I would highly recommend them based on how they managed the situation.

Returns policy  ·  Terms of service agreement

Shops, Technicians & Repeat Customers

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Erik & Nikki Hensley
★★★★★  June 2026

Professional to work with and efficient work.

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Marlo Duarte
★★★★★  February 2025

I have been in the repair industry for over 20years and ECM Engineering has been the easiest and fastest company I have ever done business with. They are 6000 miles away from my shop and the turn around time is faster then local companies. If you need an ECM and want a well priced quick return this is the place for you! Thank you guys.

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James Judd
★★★★★  February 2025

Extremely easy and good to work with. I appreciated their follow-through and speed with respect to repairs. Would use them again if needed.

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mariana estevez
★★★★★  January 2025

I sent my ECM to be repaired and they did a great job, recommended!!!

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Fabiano Banhi
★★★★★  Local Guide · January 2024

ECM Engineering USA exceeded my expectations in every way. Their website is user-friendly, making it easy to navigate and request a repair service. The technicians were friendly, responsive, and knowledgeable. They diagnosed and fixed the issue with my ECM promptly, and their pricing was fair compared to other repair shops I checked. I am more than happy to recommend ECM Engineering USA for their exceptional service.

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Aldrick Corbett
★★★★★  November 2023

I recently had my ECM repaired by ECM Repair USA and I couldn't be happier with the service. The team was incredibly knowledgeable and professional throughout the entire process. They fixed my ECM in a timely manner and the cost was very reasonable. I highly recommend ECM Repair USA for their exceptional service and expertise. Five stars!

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Roman Novoa
★★★★★  Local Guide · November 2023

I recently had the pleasure of using ECM Engineering LLC USA for my ECM repair needs, and I am extremely satisfied with the results. The team at ECM Engineering USA showed immense expertise and skill in diagnosing and fixing the issue with my ECM. They were prompt, efficient, and provided excellent customer service. The repaired ECM has been working flawlessly ever since.

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Jose Alfredo Rodriguez Siles
★★★★★  Local Guide · November 2023

From the moment I contacted them, their team was attentive, friendly, and professional. They went above and beyond to make sure my ECM was repaired flawlessly. The communication throughout the entire process was excellent, and the turnaround time was impressive. I highly recommend ECM Engineering LLC USA to anyone in need of ECM repair services. A definite five-star rating!

Reseñas en Español

We work with Spanish-speaking customers throughout the United States and Latin America.

D
Davis Miranda
★★★★★  March 2026

Excelente servicio, regresaré

O
Orlando Alberto Herreria Lopez
★★★★★  December 2024

Excelente servicio. Muy profesionales. Saludos

I
Ivan Chavez
★★★★★  Local Guide · November 2023

Excelente servicio y muchas gracias

Share Your Experience

If we have repaired, programmed, or tuned a module for you, a short review helps the next owner decide whether to send us their unit instead of buying a replacement. And if something did not go the way it should have, tell us directly.

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Sending Us Your Module

We work by mail-in service across all 50 states. Contact us first with the symptoms, engine, year, and module part number, and we will confirm what to send and how to pack it.

ECM Engineering LLC (ECM Repair USA)

137 N Highland St, Mount Dora, FL 32757

+1 (561) 299-4099

Monday to Friday, 8:00 AM – 5:00 PM (ET)

Contact form  ·  Our repair process  ·  ECM pinout library