PriceProtect™
DriveShield™
GarageGuard™
Services
Insurance
Car Insurance
Compare Car Insurance with Jerry
Jerry’s Expert Advice
Car Insurance Estimates
Home & Renters Insurance
Renters Insurance
Repairs
Car Repair Estimates
Repair Estimates for Popular Services
Advice
Read Car Content
Browse Jerry Car Advice
Check Out Expert Car QnA
Learn About How We Create Content
Jerry Data & Research
Why does my car jerk at 25mph when I’m slowing down?
This is so frustrating! My car has been doing this weird thing where it jerks when I’m decelerating and hit 25mph. It doesn’t do it when I’m accelerating and it doesn’t do it at any other speed. I can’t seem to get a straight answer on this. What would cause a car to jerk specifically at 25mph when slowing down?
Patrick Price · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Oh no! That is very strange! Based on the symptoms, it’s likely that an issue with one of your car’s electronic sensors or a faulty solenoid is causing your car to jerk at 25mph when you’re slowing down.
Your car uses a variety of electronic sensors to keep track of your speed and regulate different systems. Your car consists of numerous different systems that all need to work in harmony. In modern cars, this coordination is achieved with the help of sensors that keep track of data and deliver it to the Powertrain Control Module (PCM), which is your car’s central control computer.
If one or more of these sensors is malfunctioning or has faulty wiring, it could be sending false readings at specific speeds to your PCM, causing it to behave strangely.
Sensors that might be involved in your issue include:
- Mass Airflow Sensor
- Vehicle Speed Sensor
- Transmission Output Speed Sensor
- Wheel Sensor
You also might have a bad solenoid somewhere as these electro-hydraulic valves control the flow of transmission fluid and depend on speed sensors to operate properly.
Other, less likely, possible causes include (but are not limited to):
- Faulty driveshaft
- Faulty transmission mount
- Worn suspension
In the end, this is an issue that you’ll need a professional mechanic to diagnose. You may also want to have an automotive electrician run a full diagnostic on your electrical systems.
While you’re having your car looked at, take a few moments to review your
insurance coverage
coverage with Jerry
. A licensed broker, Jerry does all the hard work of finding cheap quotes from the top name-brand insurance companies and buying new car insurance. Jerry will even help you cancel your old policy.
View full answer
- Gregory R.
WHY YOU CAN TRUST JERRY
Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.
Join 4M+ members in lowering their car insurance
You Might Also Be Interested
Read Advice From Car Experts At Jerry
What Others Are Asking
Browse More Content
Insurance in Your State
Easiest way to compare and buy car insurance
No long forms
No spam or unwanted phone calls
Quotes from top insurance companies