A Toyota master diagnostic technician shares Toyota EGR diagnosis tips and repair tips for models equipped with the latest generation EGR ( Exhaust Gas Recirculation)

In this video I start a new segment in my channel on how professional mechanics approach diagnosis. The key aspect of any diagnosis and repairs start with the 3 Cs. Concern, Cause and Correction.

First we will look at the concern which in this 2010 Toyota Prius. The concern in this case is a vibration or shudder at low speed\low load when the gasoline engine is running.

I will show you how to isolate the EGR system temporarily to verify that it is indeed the cause of the problem with this Prius.

I'll also cover the differences between professional mechanic approach to repairs vs. DIY approach to repairs. The car being a customer car changes the approach. Most DIY mechanics will understand that some repair attempts on a budget might be short term or can have a nature of trial and error and are willing to deal with issues not getting resolved right away because they are not incurring labor charges.

However in the case of professional car repair customers pay mechanics full labor cost to fix the car right the first time. So the approach of diagnosis and repair recommendations can be different than DIY. Mechanics can't make decisions for customers, They can only recommend options and detail the outcome of each so the customer can make a decision.

In this video I'll show you the process of diagnosis and repair of this EGR system in this 2010 Prius. The owner opted to replace the EGR valve and the intake manifold. I also constantly see folks spending far too much time cleaning the ports, the cooler and the valve to a shiny finish but only to have them covered in soot minutes after starting the engine which is normal.

Along the way I will share some mechanic tips on general car repair like making your own magnetic socket.

Also last I will cover the part of this EGR repair that most DIY mechanics miss which actually resolves the problem with the EGR. Simply cleaning or replacing parts does not complete the repair unfortunately.

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#thecarcarenut #toyotarepair #mechanictips

0:00 Intro
0:49 The Concern
3:17 Diagnosis Tip
6:14 Professional VS. DIY repair
13:09 The Repair
18:50 Mechanic Tip
20:53 Software Update

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