Jut put this together for another, if you find something not recorded right let me know.... 2 hrs of video & there are more of them that have info in this regards.
Two Videos On 2AZ Engine by Toyota Master Mechanic that rebuilt 1000s of 2AZ under toyota program….
1st Video is review & rebuild of 2AZ Engine
2nd Video is under car review, common problems
THIS is Toyota's Worst Engine Ever Made! But Is It Really THAT Bad? 2AZ
VG review of issues, dates of delta, model year changes & FIX
Top Side Engine removal and rebuild the 2AZ with pistons and rings….. the HOW to Rebuild
History of new 2AZ engine 2000 intro, ……….the head bolt threads pull out
2000 New Engine and intro of the 2AZ Engine……… head bolt thread was failure, do not over heat engine
2004 update block head bolt threads stronger
2007 2nd Update Piston & Rings, low tension piston rings, would carbon up rings & burn oil with frozen rings, frozen rings could damage cylinder walls.
How to tell the OK Engines for 2AZ:
OIL CAP…. 5w – 20 or 0W – 20 these oil caps have the low tension rings…… 5w-30 this will have the std rings
By model and years will says when these changes were done in video
Black RTV all over means the factory ring update, grey RTV is the OEM color from factory…. Factory update field program
So the 2005 and 2006 will have the 5w-30 oil cap and the updated head bolt threads
2000-2004 engines should be ok, just do not over heat the engines….. any of the 2AZ do not over heat
All of the 2AZ need proper engine oil maint 4k to 5k mile oil changes or 6 months of time
Maybe, Learn the Engine Build Date Codes…. I think Toyota uses them but have not verified or looked
This is One Toyota Corolla Model You Might Want to Avoid Unless The Engine's Been Fixed
GOOD GEN REVIEW…. under the car video
Please watch the video it will have a lot of information for you, me, others
2007 2AZ Toyota changed to Low Tension Piston Rings..... that was a problem with the carbon up rings then damage, oil consumption, frozen rings, and damage to cross hatch
2004 2AZ Toyota changed the block..... to strengthen the head bolt threads from pulling out, do not overheat any of these 2AZ engines.
Review steering shaft noise when turning common….
TRICK under dash, loosen collar fastener, move up, tighten Fixed at 9min of video
Moving collar changes the pivot angle and uses different “location” changes the turning points
Up in air a used tire review with hand ………. 14 min of the video
Tires can cause vibration, alignment issues, poor handling
Good gen used car review and what to look for on toyota