Check Engine Light On problems of the 2004 Toyota Tacoma

While driving the vehicle loses pedal response due to the throttle control motor shutting down and the check engine light coming on. The engine either shuts down completely or the becomes very jerky and cannot sustain an idle. Incidents began to occur around 95,000 miles odo but stopped for several years after a mechanic worked on the vehicle and said the throttle position sensor was out of alignment. More recently the truck has again been experiencing the same problem as before: loss of pedal response, and in addition it now shuts the engine down and the gauges shoot up to the top of the charts and tick unresponsively until the key is removed from the ignition. This has occurred multiple times now in traffic and along the roadway where the truck becomes unresponsive and is difficult to drive safely off of the roadway.

I was driving at a normal speed on the highway. The gas pedal became unresponsive. I had to push the pedal all the way to the floor in order to get up to speed. The check engine light came on and the transmission had trouble switching between gears. This problem occured intermittently and continues to happen. The code that has come up is to replace the throttle body, which I have two separate times, but again the new replacement part is quoted at $1000.

While driving on the freeway about 55mph my truck stalled on me twice doe a second. Also pulling out of my drive I had a hesitation in acceleration and almost got hit from a oncoming vehicle. They are no check engine light that comes on. Took it to a mechanic and they couldnt fin a issue.

2004 Toyota Tacoma v6 3. 4l 5vz-fe with automatic transmission. Toyota originally equipped this vehicle with a throttle by wire system. The vehicle unexpectedly does not respond to accelerator pedal position. Toyota on board diagnostic system does not detect fault thus does not log any error codes or illuminate check engine light. Occurrence rate and duration of events is intermittent and inconsistent. Velocity of the vehicle rapidly decreases unexpectedly and momentarily as if foot was temporarily removed from the accelerator pedal. Vehicle also unexpectedly and momentarily does not respond when accelerator pedal is depressed to begin moving or suddenly decreases speed when accelerating. This is a potential hazard in situations such as cruising in traffic, clearing an intersection, crossing railroad tracks, etc. . . Occurrence rate and duration of problem seems to be worsening over time or with increased ambient temperatures.

My 2004 Toyota Tacoma has an intermittent problem with a loss of power, I. E. When I step on the accelerator, it fails to respond for a brief period of time. It is a problem when pulling out into traffic, as the loss of power has led to several near collisions. The vehicle has been to the dealer twice to diagnose the problem, without a clear cause, according to the dealer. Research through an independent service shop points to a problem with the accelerator pedal position sensor. Research on Toyota Tacoma forums online also seem to support this. The only viable fix seems to be to replace the entire throttle body, since the sensors are not available separately. This cost is over $1200, as opposed to a $70 sensor. The problem is intermittent, and can happen many times a day, or be absent for weeks at a time. Three times it has resulted in a check engine light, with a tps fault recorded (the tps and apps are read as a unit by the ecu). The problem has not yet been adequately addressed.