Skip the auto shop - Our mechanics make house calls

Q: single big jerk when reducing speed around 20-25 mpg.

asked by on

when i am reducing speed from high to 25-20 there is big jerk. After driving of 10-12 mile this jerk is disappear or may be very low, why this happens. I changed my car oil before one month at sears.

My car has 91000 miles.
My car's transmission is unknown to me.

Based on your description, I believe that you are having an issue with your transmission. I think what you are feeling is the transmission downshifting. Your transmission has a rough downshift. I would recommend having your transmission inspected by a qualified professional to determine the exact cause of this issue. This may involve removing the transmission for the vehicle for further inspection. Sometimes this issue can be resolved by replacing an electronic shift solenoid. Worst case scenario is a transmission rebuild or replacement. Once the inspection has been performed, how to proceed will be more clear.

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

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: Smell of gas

Hi there: Anytime you smell gasoline, it should be taken very serious. You could have fuel leaks on the fuel rail or any of the fuel injectors. You could also have a fuel tank vapor line to the intake manifold...

Q: Various dashboard lights on

Hello. It sounds like you have a charging problem, like the alternator has no output. With the alternator having no output, the vehicle is running on the battery alone. The basics need to be checked: alternator belt present, the current...

Q: My car cut off when I stopped at the light and applied pressure to the brakes. I was told it's because I need to replacey brakes

Hi Kim. The brakes needing to be replaced are typically not a cause of an engine shutting down or stalling. In most cases when the car stalls when you slow to a stop, it's due to a fuel flow problem....

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.