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?
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. 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: Engine Noise at all revs- especially while accelerating/revving higher.

Hey there, thanks for writing in. An initial and particular concern would be if you have an exhaust manifold leak. If so, that needs to be checked out and repaired immediately due to the hazard of carbon monoxide. Beyond that,...

Q: interior reading lamp out

Hello. There is a fuse for all of the interior lights, not one for each individual light. It sounds like the bulb may have blown out and needs to be replaced. The way to replace the bulb is to pop...

Q: Distributor install

Bring up number one piston to TDC on its compression stroke and then align the crank mark with the big V between the two marks on the timing cover. Then align the distributor to number one on the distributor cap...

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...
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...
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...