Skip the auto shop - Our mechanics make house calls

Q: Bad transmission makes truck jump forward

asked by on

Whenever my 2006 Ford explorer shifts up, the transmission lunges and makes the car jolt. It is extremely uncomfortable and this vehicle is not old enough to be experiencing such severe problems. It only has 68,000 miles on it. The more research I do, the more reports I am finding of this exact same problem. I'm disappointed to say the least! How can I change out the transmission without putting another one in there that isn't working properly?

A: The shift servos in the transmission are bi...

The shift servos in the transmission are binding in their bores and causing the shifting issues you are experiencing. Ford has issued a Technical Service Bulletin (TSB) 09-12-12 dated June 29, 2009. The TSB is a modification to the servo shaft bores by drilling them bigger and putting a sleeve in each shaft bore and cross bore of the valve body. This can only be done during an overhaul of the transmission and requires specialized tools from Ford for the corrections. If a used or remanufactured transmission is put in, it is not guaranteed to have the updates to the transmission housing. The only way to know is to have your transmission overhauled at the dealer with the TSB performed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Turn signals not working

Unfortunately, there can be a few different reasons as to why your turn signals are not working on your Ford Ranger. The most common reason to inspect first is the fuse box. You will want to look for any fuses...

Q: Bank 1 running to rich and injector 1 contribution fault Intermittent.

Hi and thanks for contacting YourMechanic. What you are experiencing is a misfire detected in cylinder 1 and a random misfire in cylinder 3. This could be caused by either the fuel injectors not firing, the spark plugs fouling out,...

Q: Car stuck in neutral

Hi there. There have been issues where the axle shaft breaks and the vehicle will be unmovable in any gear. The axle would have to be inspected to see if it is broken. Also, the problem could be internally in...

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 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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.