Q: Throttle body changed 3 days ago. Idle relearn performed and still high idle and revving while in park.

asked by on

Throttle body changed 3 days ago idle relearn performed and still high idle and revving while in park

My car has 109000 miles.
My car has an automatic transmission.

Hi there. Check the engine for a vacuum leak. Check all vacuum lines, hoses, and the intake for any leaks. Also check the brake booster for any leaks. A vacuum leak will increase the engine’s idle speed while the engine is not loaded. If you need further assistance with your engine revving in neutral and park, then seek out a professional, such as one from Your Mechanic, to help you.

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. Throttle body changed 3 days ago. Idle relearn performed and still high idle and revving while in park.

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 making high-pitched noise

Hi, this typically points to an issue with one of your serpentine belts. These belts drive different components on the vehicle such as the water pump, alternator, and A/C compressor. Over time, they will begin to lose their grip which...

Q: Peugeot 206 won't start.

Hi there. I would check to be sure the engine is getting fuel, air, and spark. If the Check Engine Light is on, I would recommend having it hooked up to a scanning tool to see what trouble codes have...

Q: Just replaced the serpentine belt and noticed a loud squeaking and smoking

It sounds like your car is overheating, and perhaps the water pump has seized up, which could account for the squealing, the smoking, and the overheating. It's entirely possible that the water pump seized due to the belts being overtightened....

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...
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...
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...