Q: Rough running transmission

asked by on

The transmission in my 2007 Ford Fusion started acting up out of the blue one day and the gear changes became a little bit rougher. The car still worked, but it was definitely concerning. The jerking became worse over time and eventually the car had such trouble changing gears that it stalled going up a hill (it is an automatic). Now it is almost unusable at just over 70,000 miles. I am very disappointed. When I get the transmission replaced, what can I do if the same thing starts to happen again?

I hope you have not yet had the transmission replaced on your Fusion. Many of the problems you have described could be transmission related, but they could very well be symptoms of other components malfunctioning. If you have not yet replaced the transmission, I would strongly advise you have the vehicle inspected by a qualified technician. Often times, transmission shifting concerns will set diagnostic trouble codes that the technician can use to help determine if the fault is mechanical, electrical, or hydraulic. My suspicion is you may have a problem in the electronic throttle body (ETC) or in the accelerator pedal position (APP) sensor. If so, the transmission’s controller (TCM) will not know when to shift, or how much pressure to apply, and may exhibit the symptoms you have described. I would hate for you to replace a transmission needlessly. If the technician does in fact discover the transmission has failed, it would be wise to have the TCM reprogrammed as outlined in Ford Technical Service Bulletin(TSB) 070203A. Ford has identified a potential software issue that may result in rough shifting, and ultimately lead to transmission failure. While this doesn’t help you in your current situation, it may help prevent the need to replace the transmission again in the future.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Rough running transmission

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car shifts erratically and hesitates when accelerating

Hello. When the Check Engine Light comes on in your car, it will automatically turn off other systems like the traction control. Depending on why the light is on, it may also cause shifting problems. I would typically start with...

Q: esp bas light on dash keeps coming on

There is a TSB (technical service bulletin) for this issue. It does say the brake switch is the source of the problem. At least it can be the source of the fix. But it doesn't say replace the switch. Apparently...

Q: How do I mute with the steering wheel?

You can control your sound system using the steering wheel. To mute the sound system, press the Mute button. Press this button again to unmute the system.

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.