Skip the auto shop - Our mechanics make house calls

Q: Random hard shifts

asked by on

My Jeep is hard to shift. It doesn't happen all the time, but when it does, I hear bump-like sounds under the vehicle and I feel like someone has run into the back of my Jeep. What causes this problem?

A: The most likely cause of your issue based o...

The most likely cause of your issue based on the symptoms described would be a faulty transmission mount. The transmission mount is a rubber piece that is inserted between the transmission and the body of the vehicle and is used to absorb shock and impact during shifts as well as keep the transmission secured to the vehicle.

If the rubber on this mount has been compromised, the transmission will now have some movement up, down, or side-to-side. Due to this extra movement, the transmission will jerk more than normal while shifting. Since the transmission is a heavy object, this jerk tends to shake the entire vehicle. I would recommend having a qualified mechanic take a look at your transmission mount(s) to ensure that they are working properly.

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: Transmission mount

Hello. The best way is to do a visual check and look for any cracks or sagging of the rubber in the mount. Putting the vehicle on a lift may help to see it better. The motor mounts are checked...

Q: Automatic won't shift

It sounds like your shifter cable may have come loose. What happens over time the bushing for the the shifter cable that connects to the linkage on the transmission becomes worn and needs replacing because it will not stay connected....

Q: Car whines and shimmies park won't engage.

You should go back and check over all the work you did for any loose fasteners, and check your fluids to make sure they are full. It is not unusual to pull a bad part out of a new box....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...