My wife has an 01 Highlander Limited and recently it started acting up (approx. 90K miles). By this I mean that recently it just would not start. Oh it would crank but then not start... Then, just as suddenly, it turned over and ran as normal.
OK...no answer discovered.
This PM she called me from her office and told me than she got in the car to drive home from work and the car would start...but then it would stall. It could be restarted...only to stall again.
Before I could get there she called AAA / SoCAL and the tow-truck dude indicated that he thought it was bad gas. He started the car and rev'd the engine...he drove it around the parking garage and then suggested that she fill the tank with some quality gas and dump some fuel line cleaner into the tank.
OK, so I show up and the car is running...I followed her home...car's running just fine.
Just as a preventative measure I added topped off the tank (it was at 1/4) with premium and dropped in a bottle of Techrolene (sic).
SO...how many fuel filters are in the Highlander? Do they ever need to be changed (I searched the owner's manual and did not find anything to indicate it needs to be changed)?
I'm thinking this sounds like a fuel related issue.