Transmission jumps at different speeds.

- Boca Raton, FL, USA

Vehicle was driven normally and parked. While parked, owner noticed small leak under front axle, investigated and leak appeared to be transmission fluid or antifreeze. Owner drove vehicle next day, parked and noticed leak was larger. Owner took vehicle to dealer next morning and was told the head gasket was failing. Dealer said alternatives were to repair head gasket ($3200+), replace engine or buy another vehicle. Owner declined repair and took vehicle to independent mechanic, who confirmed head gasket leak and recommended either sealant ($250) or head gasket repair ($1200). Owner chose sealant. About four days after sealant fix, owner was driving vehicle and stopped at a starbucks drive-through. Minutes into the wait, the vehicles temp gauge began to climb rapidly. Owner revved engine and temp declined. Owner drove vehicle home and inspected engine, discovered coolant had begun to spray from overflow reservoir. Owner let vehicle cool. Next day, owner drove vehicle at modest speed across town, watching the temp gauge. Temp would increase incrementally, then decline, but no overheating appeared. Third day, owner did same, but this time, as owner approached his home, the temp gauge shot to red. Owner parked in driveway, opened hood and found overflow reservoir bubbling, coolant spray and overflow on frame. Prior to these incidents, about one year ago the owner had been told by Toyota dealer that a few engine mounts were cracked and needed replacement, which was done. No other major repairs or issues have existed with vehicle. Vehicle is not 10 years old, its 103,500 miles has been generally light highway and short-distance city driving. Oil and other maintenance has been routinely performed.

- Las Vegas, NV, USA

Since I purchased my 2004 Toyota Highlander V6 it has very rough shifts. The transmissions seems to hesitate and lag when I try to accelerate during normal driving speeds, (I feel like I am on a carnival ride). I have had it to 3 different dealership in Florida & they all say the same thing ("that this model drives like that" & it's the way you drive") funny though when the mechanic drove it, with me in the car he said that it was the transmission. The underwriters in service think because I'm a women, it's the way I drive. I love my car but, this problem needs to be addressed by Toyota & fixed !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

- Lake City, FL, USA

Hesitation during auto transmission gear changes. Engine revs very high then changes gears.

- El Paso, TX, USA