general problems of the 2003 Toyota Tacoma

While driving on the highway, I experienced an issue with the vehicle's performance under moderate acceleration (approximately 3000 rpm). The engine will no longer output power that is proportional to the amount I am requesting with the gas pedal. Once the issue occurs, the maximum power output is only 2000 rpm with the gas pedal fully pressed. The issue is occasionally resolved by shutting the engine off and waiting a few moments. The check engine light comes on with the code po120. The code translates to a faulty throttle position sensor but Toyota will not replace the $60 sensor individually, they will only replace the $1,200 throttle body that includes a new sensor.

I was driving down the highway experience loss of power such as fuel push the throttle down a couple of times it pick back up happened to more times within 10 mi1nutes it did not throw a code been checking it may relate to a throttle body problem been reading about problems with the throttle body do not want this to happen in heavy traffic or pulling out in front of traffic please let me know what or how to take care of this problem.

Car stumbles/hesitates intermittently at various speeds. Have spent time/money trouble shooting the problem/making repairs with no affect on problem. Problem appears to be drive by wire throttle body Toyota part # 22030-62020 (Toyota data per VIN shows this part should not be on my car). Toyota has a program to replace throttle body if found to be defective (for a limited time) except problem cannot be duplicated in the shop and it does not cause any codes. On-line reseach indicated problem is with the throttle position sensor (tsp) or the accelerator pedal position sensor (apps) on the throttle body failing. Reseach indicates Toyota is aware of this problem as they will replace part free if proven defective and apparently has redesigned their throttle body. Issue is, most of the time the dealer cannot reproduct the problem in the shop and since it does not cause a code they will not honor the warranty program because they will not be reimbursed without proving the part is defective. The problem with this throttle body has been identified in vehicles with as little as 30000 miles to over 250000 miles per on-line research. While riding with me the dealer's technician has seen and felt the stumble/hesitation (rpm drops about 150 to 250 rpm when traveling at a constant speed for no reason) but has never been able to duplicate it in the shop or identify the cause. This stumbling/hesitation occurs everytime the car has been driven for longer than 20-30 minutes since the 1st occurance. Twice it has stumble while making a left turn at an intersection causing me to almost get hit by an on coming vehicle. This throttle body is a non-serviceable part and cannot be repaired, per the dealer it is required to be replaced as a unit. This part needs to be recalled and Toyota required to replace it at no cost now instead of only when it fails before someone is killed.

While driving in traffic the throttle stuck at above normal idle and the check engine light came on. I was able to exit the traffic but the idle would not come back to normal curb idle. What my mechanic has told me is that the throttle body assembly has failed and they can only get the part from the dealer. If this had happened on the freeway the outcome could have not been so good. I hope Toyota is aware of this problem and going to address the situation.

I'm filing the compliant to acknowledge the fact that these older fly by wire throttle bodies have a faulty tps that is only replaceable as a whole new throttle body. The cost on them is between 700 to 1000 dollars. My Tacoma do have a faulty tps on it. I'm waiting to save up enough money to replace the throttle body however, there have been numerous times that upon pulling out into traffic it has acted up. When this happens you get a very bad hesitation or lack of acceleration to the point of endangering myself and other drivers. The hesitation has lasted as long as 3 to 5 seconds before the throttle will finally respond. The condition will only happen during hot summer months. Thank you for your time and would like the see this looked into and or resolved. I will be able to replace the throttle body because I work at a dealership and get the parts at cost. However some people may not be able to save up the cost for the new part. Thanks again sincerely!!.

The contact owns a 2003 Toyota Tacoma. The contact stated after refueling the vehicle, fuel would leak onto the ground. The vehicle was taken to an independent mechanic three times where the fuel cap was replaced each time. The failure persisted and the vehicle was not repaired. The manufacturer was notified of the defect. The VIN was unavailable. The approximate failure mileage was 60,000.

Check engine light came on charcoal canister needed to be replaced apparently this occurs often to other Toyota owners part should last more than just over 3 years filing complaint to see if this is a defective part or design that could lead to later problems cost $560 to replace.