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Posts by Mark Lemay

Mark Lemay
29 posts

A Different Approach by Mark Lemay

Diagnosing and servicing EVs requires new protocols. For the purposes of this article, the term EV refers to both battery electric vehicles (BEVs) and Hybrids as…

Hot Escape by Mark Lemay

A Ford SUV has problems blowing cold air. Recently, we came upon a very interesting case. There was a 2017 Ford Escape with a customer complaint…

Low Power Mercedes-Benz by Mark Lemay

A twin-turbo ML400 required diagnosis to restore its full performance potential. This vehicle was brought to us from another shop with a customer complaint of low…

Rich Idling Ford by Mark Lemay

It started out as a telephone tech call and wound up with a final in-person diagnosis on the vehicle. The vehicle in question is a 2012…

Diagnostic: Outside the Box

When service information is lacking, a little inventiveness is often required. The following case study is an example of why you must think beyond the information…

Repair Information : More Data Please

Key details are still often left out when it comes to diagnostics One of the beefs I have with the data we are provided by different…

Time for Change?

Better data access is needed to fix those vehicles in our service bays. There has been a recent push in the Canadian Aftermarket to abandon CASIS…

Thinking It Through

A detailed analysis of a rough running CR-V allowed us to pinpoint the problem. Sometimes, when dealing with a diagnostic situation that has more than one…

Product Review: Diagnostic Tools, Fast Scanner

We put MAHLE’S TechPRO to the test. MAHLE’s TechPRO Scan Tool was first introduced at AAPEX 2015. It’s designed to decode Vehicle Identification Numbers (VINs) in…

Troubleshooting: Understanding the System

Learning what’s wrong and why leads to a far better outcome. Whenever we make a misdiagnosis (it happens to everybody) or encounter a problem vehicle at…

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