Originally Posted by leakyseals
I agree, the 08's are getting up there now, who knows. Background - never heard of any actual failures post 04 in the 3 years I've been following this. Doesn't mean it didn't happen cause I didn't see it . What I know is Toyota acknowledged with TSB EG015-07 for updated short block. Strangely, there is also a TSB with the same/similar number for for what looks like an admission the Huhn kit is the way to go TSB 01507, NHTSA #10021542. Here are the short blocks by year for the Camry. Yours would be similar/same.
NA 2AZ-FE Camry Cylinder block
2010 410-09270
2009 410-09230 replaced by 410-09270
2008 410-09230 replaced by 410-09270
2007 410-09230 replaced by 410-09270
2006 410-29325 replaced by 410-29326
2005 410-29325 replaced by 410-29326
2004 410-09050 replaced by 410-29326
2003 410-09050 replaced by 410-29326
2002 410-09050 replaced by 410-29326
IMO it was the 410-09050 block causing the problem. Used on some models till 06.5
Flaw - The block mold accommodates space for the foam. Aluminum near the threads is too shallow/thin in that area. Sitting directly behind the foam that insulates the plastic intake are 3 steel bolts. Different expansion than the aluminum. Under high heat conditions, aluminum gets soft. Metal expands. 2 metals expand at different rates. The foam insulation protects the plastic intake from the heat of the block. But it also traps heat on the block in that area near the 3 threads. Under the right conditions, real hot, pop, pop, pop. My old Camry hasn't done it. Drain and filling the coolant every 40k. 4qt drain gets 90% of capacity (6.5) so thats all I do. driving around waiting for pop, pop, pop. Don't blame you for being prepared with the Huhn kit. If its every god-[censored] year and my thinking is wishful please let me/us know.
Wow..Wife crashed our '04 Highlander Limited 3.3 V6 05/14 so when I searched the market value I stumbled on a salsa red '06 2.4 2WD really mint with 28,500 mi. not aware of this I bought it for top dollar $13,500 thinking we would use it out to +250k. I like it better than the 3.3 4WD Limited.
This unit was spotless in and out, engine bay looks like the day it left the lot, coolant is pink and holds perfect in the overflo tank.
I have a cabin 500 mi. round trip that I do almost every weekend close to 30k per year all together, don't want to fix something not broke and hate the thought of frying the engine, guess I'm looking for opinion as what to do with this? Can I check the block # myself?
tia