Wrench light comes on, followed by check engine light. Car goes into fail safe mode, down to about 2 MPH; rpms fluctuate dramatically. Happens on the highway, and during normal street driving. Seems to be in the throttle, the same thing as in the recalled ford focus throttle plate actuator.
2012 Ford Mustang fuel system complaints
Page 2 of 2: complaints 11 to 22 of 22, newest first, as owners wrote them.
While driving expressway speeds in the center lane of a busy expressway the vehicle abruptly went into limp mode and loss of all acceleration. Had to coast to get to right hand lane/shoulder. Took car to dealership and they said the throttle body had to be replaced. As a side note, I had the fuel injectors and throttle body cleaned just over a year ago. I don't understand why the mustang is not covered under ford's "customer satisfaction program" that is being offered for faulty throttle bodies in other models as the unsafe symptoms and results were identical, I.e. Car driving highway speeds abruptly goes into limp mode and loss of all acceleration.
I was accelerating when suddenly there was no more power, the "wrench" light came on. I was able to get to the side of the road. Turned off the engine and restarted the engine. The problem then went away however reoccurred about six times since with the same symptoms. I had a mechanic run a diagnostic test which revealed a faulty throttle body. Ford dealer has not agreed to replace, did say that they would match any lower price for the part so that there would be a 2 year ford warranty. Since there are seven other complaints on this car and it is a serious safety hazard, it seems like they should replace the part.
The vehicle has gone into limp mode several times. The wrench symbol on the dash comes on and the vehicle must be shut off and restarted. I am told the throttle body must be replaced. Why is there a customer satisfaction program for the escape and other models but not the 2012 mustang. I own a 2012 ford escape also and have not experienced the problem with that vehicle. Only experience it with a same year vehicle that is not included in the program. The vehicle is not safe to drive when it shuts down at 45+ MPH.
Driving down the road and the electronic throttle wrench light come on and car went into limp mode. It has happened 3 times since. Once going down a 4 lane highway in rush hour traffic and car just stalls. I had to get over in far lane and get off road as cars were flying up on me and around me.
While merging on a local highway at 15 MPH the wrench warning light came and the car went into limp mode. I was lucky the right hand lane had break in traffic and I was able to get off the road. The limp turned in no acceleration and was unresponsive to the gas pedal. I turned the car off and waited 1 minute and restarted the car - everything was back to normal. I drove directly to my mechanic and had him scan for codes. No codes were found. He ran numerous other checks and drove the car for 60 miles with no problems. This is the second time the wrench warning light has come on in the last 3 weeks. The first time nothing happened as the car did not go into limp mode. The car was scanned then also with no codes showing. I was fortunate not to have been hit.
Entering into traffic, the car will go into limp mode. There was no response from the gas pedal and the car just cruzed at a snail pace. Very dangerous situation, as the traffic was moving and I barely moved out of the way. Since, I had 4 occurrences and taken it to the dealer. They will not work on the car unless the check engine sign stays on. The car computer will reset everytime you start the car. I had the car tow to the dealer the first time and subsequent events, but as I mentioned the dealer did not wanted to recognize the situation.
Driving down the highway full speed in heavy traffic, and engine just shuts down. Wrench light and check engine light come on. Have to coast through traffic to pull off to the side of the road and stop. Restart the car a couple of times, and then it's fine. Took to ford dealer, who said I had a bad throttle body. Charged over $800 to repair. Completely losing power while driving down the highway is definitely a safety issue! Ford has agreed to fix defective throttle bodies on other models, but not the mustang. This really looks like the same problem, and should be addressed by ford.
At approximately 60 MPH on I-295 in moderately heavy traffic, there was an audible "clunk" and vehicle immediately began decelerating. Pressing on the gas pedal did not power the vehicle. Driver was already in the far right lane preparing to exit, so safely made it to the shoulder. Had driver been in another lane, there would be significant risk of collision as the vehicle lost power so quickly. Vehicle was towed to ford dealer, who reported that the throttle body had failed. Ford denied that throttle body failure was a common issue with the mustang, although it has been in several other ford models.
Fuel system problem: evaporative emissions system related failure, fuel fill neck failure (possibly at connection to fuel tank) and unknown other leak. Dealer claims not covered by california or federal emissions required warranty. Dealer reports seeing fuel filler neck problems on mustang and other ford vehicles. (possible concern for fuel or vapor leakage, safety related concern) mustang uses "nascar" style fuel door that is clearly suspect, doesn't stay sealed tight, opens unexpectedly and allows raw fuel emissions into atmosphere. Prior software patch applied to ECM due to nascar style fuel door at 2,900 miles.
We were driving on the freeway and the car started acting like it was running out off gas. The steering wheel jerked and the brakes locked up. We now know the problem occurs only when someone sits in the back seat behind the driver. We have duplicated the problem numerous times. Sitting it the back seat causes something to short out and the car dies. This was very dangerous in real driving conditions and we are lucky no one was hurt.
On february 16, 2013 on a clear sunny day, without warning (no check engine light or other visible/audible signal), my mustang began to sputter and die while driving at 65 MPH on a local freeway in the fast lane. Efforts to downshift and rev the engine to keep it alive failed. I was forced to pull the vehicle hard over to the breakdown area in the center of the highway just as the engine completely died. Efforts to restart it failed - the engine cranked, but would not turn over. My family (including a 4 year old) were was stuck for 45 frightening minutes waiting for a tow as vehicles whizzed by.
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