Skip the auto shop - Our mechanics make house calls

Q: My car jerks when decelerating from what seems to be 4th gear to 3rd.

asked by on

I just bought this car and when I slow down from 35 mph to about 30, the car will jerk into gear. It is an automatic transmission. I took it to a shop and they said the transmission fluid levels were fine. Is my transmission messed up? What kind of damage can I expect here?

My car has 112000 miles.
My car has an automatic transmission.

A: You need to have the codes scanned by a pro...

You need to have the codes scanned by a professional with a scan tool for the transmission computer. The codes may give you an indication if the sensor is not performing correctly. If it is not a sensor malfunctioning (like a speed sensor), then you likely have an internal issue in the valve body of the transmission. For that, you will need to see a transmission specialist.

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: Transmission pan leak

Hello. If the gasket and sealant were applied and allowed to cure properly then you should not need to shift the pan in any sort of way. If the gasket is leaking then re torquing the bolts may repair the...

Q: I installed a new crankshaft positioning sensor, now I'm getting misfires and code P0300. Is this supposed to happen?

Assuming you replaced your vehicle's crankshaft position sensor for a P0335 trouble code and that code has not returned, this leads me to believe that the new sensor is either faulty or misadjusted. The sensor replacement should not have caused...

Q: Truck won't turn over, only clicks.

Hi there. A single click typically means that the battery is either low or there is a bad connection at the battery. The connections should be checked and cleaned and then the battery either needs to be tested or jump...

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...
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...