A Toyota Master Diagnostic Technician shares tips and tricks on how to check for a bad head gasket on Toyota and Lexus modern engines.

In this video we take a look at this almost 300k mile 2013 Sequoia which has a completely blown head gasket. We'll start with a path of diagnosis that professional mechanics take to verify that we have a bad head gasket and how severe is it to be able to give the customer a full picture before digging in.

Link to Borescope used in this video:
https://amzn.to/3szt3Om

I hope this video will especially help Prius DIY mechanics to distinguish between a cold start misfire caused by an EGR problem and one that's caused by a Blown Head gasket on the 3rd generation Prius's 2ZR-FXE.

This message is for all those who wrench on cars. Spend 90% of your effort on Diagnosis not on the repair. Majority of repairs are just a collection of nuts and bolts that go in a certain order. thorough diagnosis is what makes repairs successful, not the nuts and bolts part.

Recommended Tools:
Basic Scan Tool https://amzn.to/3Jm6aom
Very good DIY Scan Tool https://amzn.to/3zF7dvH
Advanced Scan tool https://amzn.to/3q3L3QQ
Spill Free Coolant Replacement Funnel https://amzn.to/3uJfKxm
Sun roof drain cleaning tool https://amzn.to/3GMDlQ9
Good DIY Torque Wrench 1/2" https://amzn.to/3gE9bnw
Wireless Apple CarPlay for Toyota\Lexus https://amzn.to/3uKElSo
*as an Amazon associate, I earn from qualifying purchases.

Follow the channel on Social Media :
  / thecarcarenut  
  / thecarcarenut  

Check out the channel Merch store
   / @thecarcarenut  

Support the channel on Patreon:
  / thecarcarenut  

Make a one time donation to the channel:
http://www.paypal.me/CCNdonate

Check out the amazon store:
http://www.amazon.com/shop/thecarcarenut
*as an Amazon associate, I earn from qualifying purchases.

#thecarcarenut #toyota #enginerepair

0:00 Intro
1:53 Basic Diagnosis Method
6:06 Deeper investigation into head gasket clues
7:43 Simple way to SEE the head gasket leak (for Prius owners)
17:08 Important Machining information on Toyota engines