Q: Car revs when turning the key

asked by on

Hi i have a Hyundai excel 1999 manual the problem i have with it is i turn my car on then str8 away its revving without out me doin it with the accelerator or while driving on the road its hesitating 2 drive and jerks while in 3rd 4th 5th gear would i need a new throttle position sensor?
My car has a manual transmission.

Hello - yes, you probably need a new throttle position sensor. The symptoms you describe are classic throttle position sensor failure symptoms. I would recommend having a Throttle Position Sensor Replacement Service completed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car revs when turning the key

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: Slight jerk when changing gears, especially when starting from a complete rest.

This may be a sign of a failing mass air flow sensor or a throttle position sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior...

Q: Tugging while shifting from first to third gear, the engine lacks power

Hi there. The most common cause of this is a bad catalytic converter. When it fails, it will clog internally and will restrict the exhaust. This will cause a serious lack of power like what you are experiencing. It can...

Q: My car is not starting when the MAF sensor is plugged in - 1991 Nissan Serena

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.