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October 24 2019

friendly and fast service. has helped me out many times very fair prices.

Kevin Mowrey

Warwick Neck Garage

September 28 2019

Mr Diagnostic was able to fix a mystery electronic problem that other mechanics couldn’t even find. Thank for your fast and efficient service.

Tracy Keresztessy

Coventry RI

June 20, 2014

Mr Diagnostic is one of the best around! As a shop owner for more than 27 years and tech for over 40 years I have seen guys come and go. Mr Diagnostic has been my #1 source for electrical and computer diagnostics for a few years now. His knowledge of electrical systems is second to none! He has never failed to diagnose any problem we have thrown at him. If you are having electrical issues with a vehicle there is only one call to make.... Mr Diagnostic!


Owner/ Technician

Elmwood Service

August 11, 2011

I run a one man shop so time is not on my side! A lot of times I have to think outside the box when it comes to time management. One of my time management tools is calling Mr Diagnostic. When you have several vehicles to work on a day and want to give them your full attention, isn’t it wise to give the diagnostic to someone that has the factory equipment. He can get it done right and in a reasonable amount of time. I am not saying I cannot handle diagnostics. Anyone in the business that knows me knows I am very capable of doing this work myself. The problem is when you diagnose something you really shouldn’t be interrupted in the middle of it. It is not so much of a distraction to be pulled away from a brake job or mechanical job. So while he is diagnosing I am doing that brake job or tune up or answering the phone and do not have to worry where I left off. I also get the repair job when the diagnostic is done. This makes me more efficient and my customers happy. When that happens it increases my bottom line.

  Mike Turcotte

Mike Turcotte Automotive

December 6, 2009

Craig…. I just wanted to write you a quick note and thank you for your help in the last few months. Your expertise in electronics, reprograming and diagnosing problems has saved my shop a lot of time and money. The fact that you come to “me” for reprograming alone saves me from taking two employees out of the shop to drop off a car at a dealership (usually an all-day affair!) and then again to pick up the car….simple math shows that it’s well worth calling you simply based on what you charge! Please don’t hesitate to give my number to anyone if you ever need a reference! I look forward to doing business in the future!!

Anthony B Broccoli

Brocks Collision Center

“In this day and age, it’s hard to find a company you can trust. Mr. Diagnostic was recommended to me by a friend, and now I know why – the quality of service I received was outstanding. He is top notch and I use him often because he gets to the bottom of the problem very quickly and that saves me money. Keep up the good work!”


Certified Auto

"I am a shop owner and had a Mazda myself and 4 other shops could not fix. Mr Diagnostic came to my shop one day to introduce himself and I told him about the car. He said he would come back in the morning. When he arrived he did some testing and a little over an hour he had the answer. I ordered the part he told me to and installed it the next day. The car has not had anymore problems".

Thank you Craig you are the best!!!!


Glenn Hill Service Center

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