2004 Toyota Tacoma vehicle speed control problems

“WHILE IN REVERSE, IDLING SLOWLY TO A STOP TO PICK UP A HOT WATER HEATER, THE VEHICLE SUDDENLY ACCELERATED INDEPENDENTLY. THE VEHICLE DID NOT RESPOND WHEN THE BRAKE PEDAL WAS DEPRESSED. AS A RESULT THE VEHICLE CRASHED INTO A PLUMBING SUPPLY WAREHOUSE, SENDING THE VEHICLE THROUGH AN OVERHEAD DOOR AND THROUGH EXPENSIVE HOT WATER HEATERS AND SPAS. THE VEHICLE CONTINUED INTO THE WAREHOUSE UNTIL IT HIT AN IMMOVABLE OBJECT AND STOPPED. THE THROTTLE CONTINUED TO HIGHLY REV THE ENGINE AND THE VEHICLE WAS SHIFTED INTO DRIVE TO GET OUT OF THE WAREHOUSE. THE VEHICLE CRASHED AT HIGH SPEED ON THE WAY OUT, AND ONTO THE STREET. BRAKES DID NOT STOP THE VEHICLE. THE VEHICLE WAS EVENTUALLY SHIFTED INTO NEUTRAL AND THE THROTTLE RESUMED NORMAL SPEED OPERATION. NEXT DAY, TOYOTA DEALER COULD NOT DIAGNOSE THE THROTTLE PROBLEM BECAUSE, BEING A 2004, IT DID NOT THROW COMPUTER FAILURE CODES. INDEPENDENT GARAGE DIAGNOSED THE PROBLEM AS A FAILED THROTTLE POSITION SENSOR. EARLIER IN THE SAME WEEK, THE THROTTLE STUCK OPEN WHEN BACKING UP AT LOW SPEED, BUT I DIDN'T THINK ANYTHING ABOUT IT OR THE SERIOUSNESS OF A FAILING THROTTLE. THE TRUCK IS NOW OPERATING AFTER REPAIRS.”

“WHILE DRIVING THE VEHICLE, THE THROTTLE SUDDENLY STOPS RESPONDING FOR ABOUT 3-5 SECONDS, THEN RETURNS. WHILE IT IS UNRESPONSIVE, IT SEEMS TO RETURN TO A FULLY CLOSED POSITION AS THE VEHICLE STARTS SLOWING, THEN SUDDENLY REOPENS TO WHERE THE ACCELERATOR PEDAL IS BEING DEPRESSED, AND QUICKLY STARTS ACCELERATING. IT DOESN'T SEEM TO MATTER WHAT TYPE OF ROAD I AM DRIVING ON OR AT WHAT SPEED. IT DOESN'T DO IT UNDER HARD ACCELERATION, ONLY NORMAL DRIVING. I SUSPECT IT IS THE THROTTLE BODY ITSELF THAT IS CAUSING THE PROBLEM AS INVESTIGATING HAS TOLD ME THAT OTHER PEOPLE HAVE HAD THIS SAME EXACT ISSUE, ALL WITH A 2003 OR 2004 TOYOTA TACOMA WITH A 3.4L V6. I HAVE ALSO DISCOVERED THAT THESE TWO YEARS A NEWER DRIVE BY WIRE THROTTLE BODY WAS USED, AND WAS CHANGED TO A DIFFERENT DESIGN IN 2005 AND NEWER TACOMAS.”

“GOING 35 MILES AN HOUR THE VEHICLE WILL START TO PULL TO THE SIDE AND THE BALL JOINT WILL COME OUT ALSO THE ABS SENSOR CABLE WILL BRAKE AND YOU WILL HAVE TO REPLACE IT A $2500 DOLLAR SPENCE FOR A TOYOTA MALFUNCTION IN THE SUSPENSION I HAVE A FRIEND IN CALIFORNIA THAT HAS ONE A YEAR EARLY MODEL THAN MINE A 2003 TOYOTA TACOMA AND HE TOLD ME ABOUT THIS PROBLEM HAD HAPPEN TO HIM IN THE FREEWAY ABOUT 60 MPH TO HIM A HAD TO LEARN THE HARD WAY IF YOU HAVE A TOYOTA TACOMA PLEASE I AM WARNING YOU TO HAVE THE BALL JOINT REPLACE BEFORE ITS TO LATE THE NEW BALL JOINTS ARE WARRANTY FOR LIFE BUT I WILL CHECK IN TO THAT IF I STILL HAVE THE PICK UP IN FOUR YEARS”

“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. *TR”

“WAS IN PARKING LOT OF STORE. STARTED ENGINE AND PUT IN GEAR AND VEHICLE SHOT FORWARD AND IT SEEMED AS IF I HAD NO CONTROL OF IT SIDESWIPING ANOTHER VEHICLE AND HEADED FOR ANOTHER VEHICLE THAT I WAS ABOUT TO BROADSIDE WHEN I WAS ABLE TO STOP MY VEHICLE. WAS ABLE TO GET VEHICLE HOME WHICH WAS A SHORT DISTANCE AWAY BUT AM NOW TERRIFIED TO DRIVE IT. NOTIFIED INSURANCE COMPANY. I CALLED DEALERSHIP WHERE VEHICLE WAS PURCHASED BUT UNABLE TO SPEAK TO ANYONE. LEFT MESSAGE BUT NO ONE HAS RETURNED MY CALL. *TR”

“TL* THE CONTACT OWNS A 2004 TOYOTA TACOMA. WHILE IDLING AT A STOP, THE VEHICLE SUDDENLY ACCELERATED INDEPENDENTLY. THE VEHICLE DID NOT RESPOND WHEN THE BRAKE PEDAL WAS DEPRESSED. AS A RESULT, THE CONTACT CRASHED THE VEHICLE INTO ANOTHER VEHICLE. THE AIR BAGS FAILED TO DEPLOY. NO INJURIES WERE REPORTED AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE RECURRED THREE TIMES. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 131,200. UPDATED 12/30/14*LJ UPDATED 05/26/2015 *JS”