Skip the auto shop - Our mechanics make house calls

Q: My car is jerking while driving, and when sitting idle

asked by on

I bought my car used and it has about 45,000 miles (when I bought it a year ago it had 37,000 miles). The car has CVT automatic transmission. When I drive, the car jerks (during acceleration and also during cruising) when the gear changes. This problem sometimes happens all day, sometimes intermittent, and sometimes it doesn't happen for 5 days. Also, when sitting idle at a red light (stopped, but in drive), the car will jerk forward (like it's trying to change gear) but the wheels don't actually move forward. When this happens I have to place the car in neutral and then back into drive for it to stop. Is this a problem with the transmission?

A: You will want to have the fault codes in th...

You will want to have the fault codes in the transmission and engine computer read out. Based on previous transmission concerns, the operation of the CVT transmission is highly dependent on how well the engine is running.

Misfires, valves out of adjustment, all of these and other engine concerns can cause the transmission to behave poorly at times. You may want to enlist the help of a mechanic who will have the tools and expertise to determine the jerking issue you’re experiencing and make the appropriate fix.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car pulsating

Hello. I would strongly recommend having the brake system thoroughly checked by a certified technician. Brake systems are vital to the safety of motorists. A noise should not be ignored as it is a warning for existing and future problems....

Q: Transmission acting up causing car to shake and loose acceleration.

Hello, with a fault like that there is a good chance that a code has been set in the traction system, transmission, and engine control. A scanner will need to be connected to check the system. The most likely cause...

Q: Bulbs burn out in left front turn signal

Before replacing the housing, try cleaning the socket and ensuring there is good contact with the bulb. Loose contact frequently causes this condition, but if the socket is damaged beyond repair the housing may need to be replaced. If you...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...