6th October 2019

carsdirect
16

What are the symptoms of a bad throttle position sensor?

Symptoms of a Faulty Throttle Position Sensor
  • An unexplainable bucking and jerking in the vehicle.
  • Sudden idle surges.
  • Sudden engine stalling without any apparent reason.
  • Hesitation while accelerating.
  • Sudden surges in speed while driving on the highway.
  • Intermittently flashing of check engine light for no apparent reason.

Likewise, people ask, what are the symptoms of a bad IAC?

Usually a bad or failing idle control valve will produce a few symptoms that can alert the driver of a potential issue.
  • Irregular idle speed. One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed.
  • Check Engine Light comes on.
  • Engine stalling.

How much does it cost to replace an idle air control valve?

When the engine is cold, the IAC valve helps to get it started. If it breaks down on you or starts to malfunction, then you are going to have to get it replaced. The cost of that, on average, will be between $115 and $500. You will likely pay about $70 for labor and anywhere from $45 to just over $400 for parts.

How do you reset your idle air control valve?

Reset the IAC valve pintle position by performing the following:
  1. Depress the accelerator pedal slightly.
  2. Start the engine and run for 5 seconds.
  3. Turn the ignition switch to the OFF position for 10 seconds.
  4. Restart the engine and check for proper idle operation.
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