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?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  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: Rear transmission seal leaking

This is a common problem with your vehicle. It is just a matter of replacing in order to fix your transmission fluid leak. I would have one of the mechanics at YourMechanic assist you with this repair. They will be...

Q: Car turns off while driving normally on the highway

Hello there. You have a few different problems going on with your 2006 Volkswagen Golf. The injector open circuit code indicates that that the fuel injectors are not receiving the power they need to function. The camshaft code could be...

Q: Q: Truck cranks but won't start

It is not possible to have more voltage than the battery can supply, so I think your meter is dropping to 2.0 volts and not 20 volts. I recommend having the battery clamps and posts cleaned and then retest system...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...