Idle Air Control Valve
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Intermotor Idle Air Control Valve

Part No. 21816 Warranty Details  
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CARQUEST by Intermotor is a complete engine management import line that includes ignition and electrical relays, switches and sensors with a concentration on high technology categories such as computerized engine controls, fuel injection, and emission controls with coverage for every part number with an import nameplate. Intermotor parts are unrivalled for quality, original fit, form, function, and coverage providing a genuine import part in every box. Intermotor is the import leader by design.

Product Features:
  • Our idle air controls (IAC) use a polymer blended, isotropic neodymium/iron/boron magnet to provide accurate control of the pintle and airflow ensuring accurate operation
  • Our high strength stepping motors produce the highest output torques and shielded ball bearing in the motor resists the environmental contaminates for an extended service life
  • Our IACs undergo load testing to ensure the actuator delivers a force greater than actual load for extra durability and peak performance
  • Manufactured with the highest grade materials for prolonged life and superior performance
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Terminal Quantity:4
Terminal Type:Male

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3 Questions | 4 Answers
Displaying questions 1-3
  • Q:

    can this unit be cleaned and reinstalled like other iac valves.
    Asked on 5/29/2013 by mike from ruleville, ms

    1 answer



      Yes, this BWD/Intermotor Idle Air Control Valve - part# 21816 can be cleaned and re-installed. For any further assistance, please call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 5/30/2013 by Vincent from AAP
  • Q:

    My 93 Chevrolet Astro Van is running rich and idles rough at stoplights. It's only getting 10 MPG, the 3 spark plugs on the right side of the engine are soaked in gasoline. could the idle air control valve cause this?
    Asked on 3/28/2012 by Anonymous

    1 answer



      This could possibly be the problem. However, without the presence of your vehicle we would not be able to properly diagnose it nor provide you with a 100% answer. We would suggest that you take your vehicle to a certified mechanic for further diagnosis.

      Answered on 3/29/2012 by Steve from AAP
  • Q:

    my engine idles down and especially at night when I use headlights,heater etc. the lights dim and heater fan fluctuates. Is this the culprit?
    Asked on 12/27/2010 by captain from Effort , Pa.

    2 answers



      Possibly. There is also a good chance that it is your alternator going bad.

      Answered on 12/28/2010 by Mike the Auto Parts Master from AAP
    • A:


      Answered on 8/25/2011 by jonboy from lou ky
Displaying questions 1-3

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