2000 Toyota Sienna acceleration problems

Filed Jul 13, 2021 · Acceleration · NM

I have a 2000 Sienna with 305000 miles. I have never had trouble with this vehicle until about 2 weeks ago. When I am stopped and my car is in drive, I just tap the gas pedal for a second and the engine RPM will increase to about 2000 RPM and will stay there until I put the car in neutral or turn the engine off. This is a problem because my breaks barely hold this and I must put the car into neutral for the car to stop pulling forward. Putting the car into neutral resets the rpm. If there is no car in front of me, I can release the brakes and the vehicle will continue to accelerate until the transmission switches to second gear, at this point I can drive normally. One time the vehicle continued to accelerate even after switching gears, I put the vehicle into neutral and the engine went to over 4000 RPM, the brakes could not stop the vehicle, I had to turn the engine off. The gas pedal is not sticky or stuck, floor mats are not in the vehicle. I can rev the engine normally when I am in park, this only happens when I am in gear. I have checked the Throttle Body, Throttle Position Sensor and disabled the cruise control module, I can see no reason for this to happen. I have seen many complaints about this same issue online but have not found a resolution. I can buy an ECM but this is an expensive trial. I will take it to the dealer from here.

Filed Sep 24, 2019 · Acceleration, Brakes · 210,581 miles · VA

Tl* the contact owns a 2000 toyota sienna. When the ignition was started, the vehicle started to accelerate and moved forward without shifting into drive. The contact depressed the brake pedal and applied the emergency brake, but both failed to stop the vehicle. The contact was able to stop the vehicle by shifting into neutral gear. There were no warning indicators illuminated. The vehicle was not diagnosed or repaired. A dealer and the manufacturer were not notified. The failure mileage was 210,581.

Filed Nov 27, 2017 · Acceleration · 200,000 miles · CA

Tl* the contact owns a 2000 toyota sienna. While driving approximately 30 MPH, the vehicle accelerated on its own. The vehicle did a stop and go action that occurred every time the vehicle moved. The contact had to place the vehicle in neutral in order to stop it completely. The manufacturer and dealer were not notified. The vehicle was not diagnosed or repaired. There were no recalls on the vehicle. The failure mileage was 200,000.

Filed Apr 4, 2017 · Acceleration, Fuel system · 120,000 miles · AZ

Yesterday afternoon, I was driving on a semi busy road in tucson, arizona at about 40 MPH and the van suddenly began to accelerate. I immediately thought I had hit the cruise control button but the dash showed no indication that this was case. I repeatedly pushed the cruise control button and jiggled the lever arm hoping to toggle something off but it had no effect. I began to push the breaks but they were not capable of slowing the car below about 25. I threw the van into neutral and the engine revved up to about 7000 RPM. That sound concerned me so I threw it back into gear and the van began to accelerate again. I pushed the emergency breaks, and with my pedal break fully compressed I could get the car to 5-10 MPH but there was absolutely no way to stop the van. After narrowly missing a pedestrian, I turned right, found a place to pull off to the side of the road, threw the van into neutral and quickly turned the van off. With the engine turned off the breaks were as effective as the should have been so the the van came to a stop. After a brief period I turned the key, started the van and, again, the engine again revved to 7000 RPM. I turned it off again. I pumped the accelerator several times before starting it again and it started up fine. I had the van towed after this and I'm not likely to drive it again.

Filed Sep 19, 2016 · Acceleration · 189,000 miles · CA

Tl* the contact owns a 2000 toyota sienna. While driving various speeds, the vehicle experienced unintended acceleration. The vehicle was taken to an independent mechanic who was unable to determine the cause of the failure. The manufacturer was not notified. The failure mileage was 189,000.

Filed Aug 31, 2016 · Acceleration · 152,717 miles · CA

While parking the vehicle and curbing the tires on a medium downward grade, with car in "drive" and my right foot fully on the brake pedal, the engine suddenly and unexpectedly went full throttle. By applying maximum pressure on the brake pedal, I was able to slow the forward motion of the vehicle as it jumped the curb, heading for the wall of a local school. By continuing applying maximum brake pressure and disengaging the transmission, I was able to stop the vehicle...approximately two feet short of impact with the wall. By good fortune, there were on injuries, and no property damage. But it could have been a tragedy. There was a function at the school on the day of the incident, and parents with children were on the sidewalk in the area both before and after the incident. Upon stopping the car and turning off the engine, I immediately checked mat positions, my foot positions, and the throttle pedal area. The was absolutely no interference between the mat and the throttle pedal, nor any contact or interference of any kind with the pedal. As I considered the car far too dangerous to drive at that point, I had it towed back to my residence. Inspection of the vehicle and further action is pending.

Filed Apr 28, 2016 · Acceleration · 200,000 miles · MA

Tl* the contact owns a 2000 toyota sienna. The contact stated that when starting the vehicle, it would rev up than accelerate up to 60 MPH without warning. The vehicle would also independently accelerate when attempting to accelerate from a stop. The contact had not taken the vehicle to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 200,000. The VIN was not available.

Filed Apr 11, 2016 · Acceleration · PA · crash · 1 injury

Tl* the contact owns a 2000 toyota sienna. While driving at an unknown rate of speed, the vehicle independently surged forward at a high rate of speed. The contact swerved and crashed into a wall. The driver's and front passenger side air bags deployed. The driver sustained extensive bruising to the left knee and sternum, which required medical attention. The manufacturer was not notified. A police report was filed. The failure mileage was not available.

Filed Oct 13, 2015 · Acceleration · 226,000 miles · CA

Tl* the contact owns a 2000 toyota sienna. On several occasions, the vehicle accelerated independently. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 226,000.

Filed Apr 25, 2014 · Acceleration, Fuel system · 130,000 miles · CA

Vehicle suddenly accelerates when the gas pedal is lightly tapped. The engine will accelerate over 2000 RPM a stay there until the ignition is turned off. If the brakes are not held down during this time the vehicle would certainly crash into anything in its way. Gas pedal is not sticky or stuck, floor mats are not in vehicle, and throttle is closed yet the vehicle still accelerates? Can not find any other issues for this model and year online for help or advice.