Skip the auto shop - Our mechanics make house calls

Q: I was wondering if you could tell me what happens when the camshaft gears get stuck?

asked by on

My car was parked for 6 months, no problems prior to that. Came back to pick it up & it will not accelerate past 2500rpm or the car starts to pull back. I was told the Cam gears are locked up & the timing chain components need changing. Would the car be able to drive if the cam gears lock up on it, or if the timing chain components need changing? Would that be a result of the car just siting for the 6 months?

My car has 25000 miles.

A: Hi and thanks for contacting YourMechanic. ...

Hi and thanks for contacting YourMechanic. Lock camshaft gears will not turn the camshaft and cause the timing belt or chain to break. This is not your issue. What could be happening is the Throttle Position Sensor (TPS) or Idle Air Control Valve (IAC) could have failed. The TPS will keep the engine from accelerating to a certain position to prevent damage if the sensor has failed. The IAC could make the RPM’s fluctuate at idle or during operation due to lack of communication to the TPS and computer.

Check both the TPS and IAC for functionality and replace which ever one is damaged. Since your vehicle is at 25,000 miles, the warranty is still within the Manufactures Warranty guidelines. I recommend taking your vehicle to the dealership to have the sensors checked and replaced.

If the dealership will not cover the sensors for some reason, then seek out a professional, such as one from YourMechanic, to help you with a proper diagnoses of your acceleration issue.

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: 2014 q50 61k miles and a "Maintenance-other" message is showing. What is this?

This message is the reminder message for you to change the engine oil and filter. You will have to reset the engine oil reminder message. To do this, perform the following steps: STEPS: Turn the ignition key to the...

Q: Power steering

Hello. If the vehicle turns itself in one direction right when you turn the vehicle on and it stays there then that is usually a sure sign of an issue with the steering gear box. When the spool valve either...

Q: After tinting windows, they are hard to roll up

Hi. Window tint can affect the operation of the windows. Spray the inside of the glass with soapy water. If the window now works properly, the tint is to blame. The noise sounds like a wheel bearing going bad. They...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.