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I'm planing to buy a Highlander 2001 1xx.xxx miles. Fortunately, I read about the Excessive oil consuming of this car. I would like to know that if it is a serious issue that I should not jump in. How can I check the car if it has the issue? where and how much to fix it in case I need to fix it.
I appreciate.
 

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08 Toyota Camry 2AZ-FE R9K Tuned
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  • 2006+ 2AZ-FE I4 are known for burning oil
  • 2002 - 2006 2AZ-FE I4 are known for stripping out their head bolts
  • Early 2000s 1MZ-FE V6 are known for oil sludge
 

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Are you sure about the years for the 2AZ head bolts? I thought it included the 2001 and 2007.
 

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08 Toyota Camry 2AZ-FE R9K Tuned
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Are you sure about the years for the 2AZ head bolts? I thought it included the 2001 and 2007.
2006 seems to the point where things were changed. What and when is debatable so I just link it as 2006, or you can see it as 2006 +/- 1. Of course I am only seeing this in Camry, not Highlander, Matrix, Corolla, TC, or anything Stateside equipped with it.
 

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Common source of oil consumption is sludge buildup in the valve cover baffles. If you search the forum there are solutions, if that is the problem.
However it may indicate less than optimal maintenance.
Try to get oil change records. They need to be done close to the schedule.
And don’t overpay.
The 2007’s were the best year for Gen 1. 2006 is also good, and 2005 is similar.
There was a significant upgrade for 2004 which included the third row, larger V6 and throttle by wire ( not sure that was an upgrade) and seems like better OBD channels, but that may just be my scanner. The valve covers for the V6 were improved for 2005.
I have a 2001 base I4 FWD and a 2005 Limited AWD. I actually like driving the 2001 better around town.
 
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