Q: Difficulty shifting on cold start, shakes upon acceleration

asked by on

When I start the van and the engine is still cold, it has difficulty shifting into first and second gear. This improves when the engine warms up a bit. I've also experienced the van shaking badly, when I try to speed up around 45 mph. Are these issues related and how can I fix this?

Hello. Thanks for writing in about your 2010 Ford Transit Connect. Most of the time, if the vehicle has low miles on it, this is caused by a programming issue. I have had a lot of these come by with transmission module programming problems. If the vehicle already has a lot of miles on it, then it may have an issue with the valve body. These fail and require replacement as they warp or become clogged with debris. If you need to have this diagnosed, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the hard start and determine what fixes are needed.

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. Difficulty shifting on cold start, shakes upon acceleration

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: Cooling fans not working

Hi there. It does not sound like the vehicle needs a repair. How do you know that the fans are not working? If the engine does not reach a specified temperature, the fans will not come on. Did the van...

Q: I put new throttle position sensor on now the car wont start i connected everything back on correctly so why wont it crank now ?

Hey there. Replacement of the throttle position sensor on your vehicle is pretty straight forward. There is no adjustment to be made - just remove and replace the sensor and you should be done. If the vehicle isn't starting, you...

Q: Crank won't started

There are several possible causes for a vehicle to crank and not start. There could be a bad fuel pump, faulty plugs, bad timing belt/chain, faulty ignition, failed camshaft/crankshaft sensor, or any number of other possible causes. It would first...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...