Skip the auto shop - Our mechanics make house calls

Q: Would the throttle positioning sensor cause the engine to rev up while driving?

asked by on

When I get to about 35/40 mph the engine starts revving up, rum's go up but no power no acceleration . I just replaced the transmission a couple months ago. Could it be a sensor in the throttle body, if so, which one? Or is it something else?

My car has 195000 miles.
My car has an automatic transmission.

Your issues may stem from a variety of components. Have the vehicle scanned for diagnostic troubleshooting codes. This will give you more information on any issues the computer has detected. Some will not illuminate the Check Engine Light.

The vehicle may be in a "limp mode", but this would likely turn on the Check Engine Light. The first two sensors you should look into will be the camshaft and crankshaft position sensors. If one of these has failed, you should replace both of them at the same time.

To avoid any unnecessary repairs, consider YourMechanic, as one of our mobile technicians can come to your home to inspect your car and diagnose any trouble codes you have.

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
  • Home
  • Questions
  • Would the throttle positioning sensor cause the engine to rev up while driving?

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: My car wont stay running

Anytime a car has been modified, it is tough to give valid advice from a keyboard. There is just no way to know what has been done. I can give you some general advice however. I would first suspect...

Q: I have a P0014 Camshaft Phasing System Malfunction code on my 2004 GMC Envoy XUV. How much is it to correct this problem?

Hello, the P0014 problem code indicates a "camshaft over-advanced error", which means that the camshaft is over-advanced (relative to the crankshaft) more than should be possible. This condition can be caused by worn timing chain components or a failed camshaft...

Q: want to know should I leave my car where it is

If you want to take your car then you will have to pay what you owe the mechanic or he could hold your car as collateral for the work you agreed to pay for. If you are going to sue...

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 Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...