2007 Toyota Sienna: hesitation when accelerating

Filed Feb 22, 2018 · Transmission · 53,000 miles · NC

Tl* the contact owns a 2007 toyota sienna. While driving at an unknown speed, the vehicle began to jerk and the transmission hesitated. The vehicle was taken to an independent mechanic where it was diagnosed that the transmission failed. The dealer was not contacted. The vehicle was not repaired. The manufacturer was notified of the failure and stated that the vehicle was out of warranty. The failure mileage was 53,000.

Filed Feb 8, 2016 · Transmission · 60,400 miles · NJ

Transmission had been hesitating at times, but mechanic couldn't find any problems. At 60,400 miles, the transmission died completely and we were stranded far from home. This occurred on a well-maintained vehicle. Because it was over the 60 months/60,000 miles warranty, toyota offered no assistance. Between towing and replacing transmission, it cost us $5900. Even the mechanic was surprised by the failure at such low mileage, as toyota sienna is what he normally recommended to his customers looking for a reliable family vehicle. We were lucky no one in our family was injured, but we are extremely disappointed with toyota not standing by its product. In hindsight, I wish we had purchased the honda odyssey.

Filed Nov 20, 2011 · Acceleration, Engine · 47,000 miles · WI

Engine/powertrain hesitates for 1-3 seconds when accelerating slowly, or accelerating quickly after slowing down such as when slowing down in an intersection, making a turn, or in slow traffic. Engine has piston slap for 3-5 minutes after a cold start in weather below 40 f. The slap becomes louder with colder temps. Shifting into gear with a cold engine can cause the vehicle to lurch due to high idle. Driver must have foot firmly on brake before shifting into gear. Problem diminishes if engine is allowed to warm for 45-60 seconds. When parking, the driver must keep the brake fully depressed, shift into park, pause 1-2 seconds before releasing brake. It seems there is a brief delay between gear lever being placed into park, and powertrain actually going into neural/park position. Releasing the brake too soon will allow vehicle to roll ahead 3-6 inches.

Filed Feb 4, 2010 · Transmission · 29,521 miles · FL

2007 toyota sienna: transmission temporarily fails to engage the correct gear after decelerating then re-accelerating resulting in a pause or hesitation before control is again regained. This occurs most frequently when slowing for turns at intersections or behind slowing traffic or attempting a lane change. Three service calls have been made on the vehicle which were recorded as a "bad ecu program". Service technicians "reprogrammed the ecu" to "reset adaptive memory and shift points" however there was no change in performance. It was suggested that this was a design problem which had been corrected in later model years. The potential consequences of the transmission's failure to immediately engage in the correct gear are the loss in ability to quickly accelerate out of a pending collision or to avoid slowing in the middle of an intersection and causing others to have collisions.

Filed Oct 1, 2008 · Transmission · 31,000 miles · IL

2007 sienna, hesitates after re-accelerating between 5 to 10 MPH. Acceleration pressed but car does not move for 1 or 2 second. Took to dealer 3 time and also talked to toyota hq (dealer did find problem but hq said not to put anything in report saying there is a problem) they just saying nothing can be done to car right now a.k.a no updates available also automatic transmission has lot of jerks when it switches gears... Example: half stop at stop sign and it accelerates without depressing the pedal and RPM going up but car not moving until half way down to intersection.

Filed Sep 19, 2008 · Transmission · 36,122 miles · FL

Transmission slipping on 2007 toyota sienna van. When traveling at 6-8 MPH the transmission will slip when the accelerator is depressed. The van will hesitate then suddenly lurch forward. The dealer says that this is normal and will not do anything to repair it.

Filed Jun 18, 2008 · Transmission · 10 miles · CA

Engine/transmission hesitation/non-responsiveness. This is particularly apparent when you lift off the throttle to go over a bump or turn. When you press the throttle after that, the throttle does not respond quickly like any of my other vehicles. This happens all the time.

Filed Jun 12, 2007 · TX

Purchased 2007 toyota sienna 4000 miles ago - several months. Ongoing problem - no accident at this time: in my opinion a very serious hesitation in engine response when I require an immediate fast forward movement of the vehicle, especially at slower speeds. Dealer says no service bulletin. (I've been driving for 40 years).