Skip the auto shop - Our mechanics make house calls

Q: Car bucks when I put it in reverse and drive.

asked by on

Once I put my car into either reverse or drive, it will buck even if I have the brakes on. I'm assuming it's a transmission problem but I'm not sure what it could be.

My car has 140000 miles.
My car has an automatic transmission.

Check your idle speed. If your vehicle is idling too high, it will buck when you engage the transmission. Your idle speed in park should be around 500-600 RPM’s. If you are noticing the RPMs to be higher that usual, then you should have the bucking issue diagnosed by an expert, as the potential causes can range from bad transmission fluid to a clogged fuel filter to a faulty idle control valve.

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: Car will start but stall when gas pedal is pushed down

This may be a sign of a faulty fuel pressure regulator. As you know, when you turn the key to on, the fuel pump is activated and the fuel system is primed with fuel at a specific pressure in order...

Q: cranks but wont start. 1986 Toyota Pickup

Try to spray some starting fluid into the throttle body to see if the vehicle starts and then stalls. If it does, then look at the fuel injection for potential issues such as a computer not firing the injectors. If...

Q: How do I park a car properly for safety?

While all it really takes to park your car is to stop and put your transmission in park, you need to ensure that you’re parking safely. Incorrect parking can lead to a number of problems, including additional wear on the...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.