Skip the auto shop - Our mechanics make house calls

Q: High idling, car jumps when put into gear

asked by on

Hello. My car has gone around 95,000 miles. It's been having idling issues on cold start. It occurs after the car sat for a while. I would start the car and it would start idling high. It would go around 900 RPM and gradually increase it. Then it would stay at that high RPM for some time. Also there is another issue that might be connected to the first one. When I shift into gears, the car would jump back and forth when I let go off the brake pedal. Do you have any idea what could be the cause of these issues? Thanks.

A: When the vehicle surges such as what you ha...

When the vehicle surges such as what you have described and has a high idle, they are generally related. A few different items can cause this fault such as the MAF sensor, a vacuum leak, a throttle body fault, or a failing transmission. If you want to have a professional take a look at this, a certified technician, such as one from YourMechanic, will have no trouble diagnosing your high idle issue, and performing any required repairs.

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: Occasionally there is a grinding noise when braking to a stop then engine stall.

Hi there. If the noise is only heard when the brakes are applied, then the rotors and pads are rubbing metal to metal. This can make a grinding noise that is heard throughout the vehicle. For the vehicle stalling at...

Q: Metal covering dragging on ground

Hi. It sounds like the belly pan has come loose. Replacement screws can be purchased at the dealer and the pan can be reinstalled. To determined if the pan is damaged or if the hardware is present to re-attach the...

Q: Remote or keys won't open car

My car has been making squealing noise. And it also leaked coolant.

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...
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...