Skip the auto shop - Our mechanics make house calls

Q: transmission shifting harsh and/or delayed

asked by on

when changing shifts usually 2nd to 3rd and 4th. rpm skyrocket to 3000-5000 without upshifting. downshifting seems fine. sometimes takes a bit to shift and when it does shift, its usually a hard shift which jerks the car and gives it a loud clunk. ATF and filter have been changed after the incident but hasnt improved performance.

My car has 313000 miles.
My car has an automatic transmission.

The rpm’s "skyrocket" is normally an indication of substantial clutch wear within the transmission. Considering the 313,000 miles, this is most likely the case.

If the fluid & filter replacement didn’t make any change in performance, you should take the vehicle to a transmission specialist for a diagnosis. It may need a rebuild.

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!
  1. Home
  2. Questions
  3. transmission shifting harsh and/or delayed

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: Speedometer is not working.

Check the wiring harness from the gauge cluster to the speedometer and see if the gauge is working. If the gauge is not working, then the gauge cluster would need replaced. If the gauge is working, then there could be...

Q: what would cause my transmission oil pan to fail and expell the entire contents of oil?

The only way something like this can happen is for the pan to get damaged or the front input seal to blow out, causing it to pump out all the fluid through the bell housing. If you'd like to have...

Q: How do I use the power sunroof when my vehicle is turned off?

When you enter your car, you cannot adjust the sunroof without first turning the vehicle on. However, after turning the vehicle off, you can continue to operate the power sunroof. If you have the electronic vehicle information center (EVIC), then...

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...
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...