Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


definitely annoying
Typical Repair Cost:
Average Mileage:
137,455 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2003 Toyota Highlander engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2003 Toyota Highlander:

Unsubscribe any time. We don't sell/share your email.

2003 Toyota Highlander Owner Comments

problem #1

Aug 152013

Highlander 2.4L/4 cyl

  • Automatic transmission
  • 137,455 miles


First, started off with having to replace engine due to a coolant leak between cylinder head and block , engine replaced with a similar type re-manufactured engine, had a second incident with same problem this time engine replaced with a 2008 (2AZ-FE) re-manufactured engine. I started noticing after driving within first 1000 miles that engine block was using more than usual amount of oil, almost 1qt per 1200 miles and told that was normal. Toyota set a standard 1qt per 1200 miles as acceptable amount because of complaints coming from this model engine block (2AZ-FE). Now being forced to go thru a second oil consumption test to verify the amount of oil being consumed!

This should not be the norm for an engine that has properly been rebuilt. I am looking for other Highlander owners that know their Highlander is not burning oil with same year and engine type to volunteer to do a similar oil consumption test as me and share results. It must be in same mileage range as my engine to prove that this is not normal if they are not having an oil use problem after 130,000 miles.

- , Waterford, CA, USA

Not what you are looking for?