2009 Mercury Mariner vehicle speed control problems

“TOOL LIGHT COMES ON AND CAR LOSES POWER IN TRAFFIC, VERY, VERY DANGEROUS. DEALERSHIP UPDATED WITH COMPUTER BUT VEHICLE IS STILL DOING IT. PLEASE DO A RECALL FORD.”

“I AM GETTING CONTINUAL THROTTLE BODY ERRORS ON MY 2009 MARINER. IT GOES INTO LOW POWER MODE SO I CAN "LIMP HOME". IT HAPPENS MOSTLY ON HIGHWAYS WHEN I NEED TO "PUNCH IT" AND GET ALOT OF ACCELERATION.”

“TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, THE VEHICLE HESITATED AND LUNGED FORWARD AS THE ENGINE WARNING INDICATOR ILLUMINATED. THE CONTACT POWERED THE VEHICLE OFF AND BACK ON AND DROVE THE VEHICLE WITHOUT INCIDENT, HOWEVER, THE FAILURE RECURRED APPROXIMATELY TWO WEEKS LATER. THE CONTACT POWERED THE VEHICLE OFF AND BACK ON, HOWEVER, THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC AND WAS DIAGNOSED THAT THE THROTTLE ACTUATOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 89,000.”

“I WAS DRIVING AT 45MPH WHEN ALL OF A SUDDEN, THE CAR STOP RUNNING. I HAD TO PULL OVER AND CUT THE CAR OFF. I STARTED THE CAR AGAIN AND IT WENT ABOUT ONE MILE BEFORE IT CUT OFF AGAIN. THEN A WRENCH SYMBOL CAME ON THE LEFT SIDE DASH BOARD. I DROVE THE CAR HOME AND IT CUT OFF ON ME THREE TIMES BEFORE I COULD GET IT HOME. I LOOK IN MY CAR BOOK TO SEE WHAT THE WRENCH SYMBOL MEANS AND IT SAYS THAT IT IS THE THROTTLE CONTROL/POWERTRAIN. *TR”

“WHILE I WAS DRIVING ON HWY DOING 75MPH MY MERCURY MARINER 2009 IT SUDDENLY LOSS POWER AND (WHILE ENGINE WAS RUNNING) I COULD NOT ACCELERATE. "TOOL" LIGHT CAME ON. I COULD NOT DO ANYTHING TO REGAIN SPEED (ACCELERATOR WAS DISABLE) AND THE ONLY FIX WAS TO SHUT DOWN THE ENGINE AND RE-START. VEHICLE WILL START AND WORK NORMALLY I TOOK TO THE MECHANICS THE NEXT DAY HE SAID THAT NO CODES CAME UP. *TR”

“THE VEHICLE SUDDENLY ACCELERATED AND THEN SLOWED DOWN RAPIDLY. PULLED OVER AND PUT CAR IN PARK AND TURNED IT OFF. CALLED MY UNCLE WHO IS A MECHANIC AND WAS NOT TO SURE AS TO WHAT COULD HAVE HAPPENED SINCE HE WAS NOT THERE. STARTED CAR AND REVVED THE ENGINE TO SEE IF ANYTHING UNSAFE HAPPENED. CAR SEEMED OK AND WAS ABLE TO DRIVE IT HOME. MECHANIC LOOKED AT IT THE NEXT DAY BUT COULD NOT FIND ANYTHING WRONG HE SAID OR DUPLICATE THE PROBLEM. *TR”