Skip the auto shop - Our mechanics make house calls

Q: RAV4 is so slow to accelerate, one-off jerk when selecting gear

asked by on

2 issues. The jeep sometimes is so slow to accelerate. Other cars outrun it when moving from a state of rest, though it accelerates very well over time . Start off pressure is weak. I have changed the fuel pump & air flow sensor. Second issue is at speeds above 30km/h a jerking is experienced around the driver side when gear is selected automatically. Just a one-off jerk.

Hi, thanks for writing in. I would suggest checking the throttle position sensor as this is often times the problem with jerking and hesitation. The throttle position sensor monitors the position of your foot on the gas pedal and relays this info to the car’s computer telling when to direct the fuel injection system to supply more or less fuel. When this is not working properly, this will cause the jerking that you describe.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this car hesitation for you, and make any repairs (such as replacing the throttle position sensor) for you as needed.

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: Fuel Rail System Error Code

Considering that the code is related to a problem in the fuel system, you should leave it to the professionals to avoid personal injury. When fueling the car, check twice to make sure the fuel cap is fastened properly. Low...

Q: What is the correct driving posture for my car?

Driving safely requires that you have the right position and posture when you’re behind the wheel. Not sitting properly in the seat can limit your view, limit your control of the vehicle, and put you, your passengers and others on...

Q: My car runs poorly when the idle sensor is connected, without it the car runs fine

The throttle position sensor is designed to monitor the position of the throttle butterfly valve in relation to the throttle pedal position. If the engine runs rough when it is plugged in and runs fine when it is unplugged, then...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...