Idle Air Control Valve
Hover over the image to zoom in
Share this:

BWD Idle Air Control Valve

Part No. 21738 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

CARQUEST by BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • The idle air control valve contains a high heat resistant sealant to prevent particulate contamination and allow pressure equalization.
  • Every idle air control valve are manufactured with epichlorohydrin material to withstand resistance of vehicle temperatures ranging from -40 deg. F to 257 deg. F. to prevent any loss of functionality.
  • Our idle air control valve uses a polymer blended, isotropic neodymium/iron/boron magnet to provide accurate control of the pintle and airflow ensuring accurate operation.
  • Each connector and terminals are constructed with OE quality materials to ensure an exact fit connection, resuming peak conductivity to the engine wiring harness, and resulting in a precise engine performance.
Back To Top
Connector Gender:Female
Gasket Or Seal Included:Yes
Mounting Hardware Included:Yes
Port Quantity:1
Terminal Gender:Male

REVIEW SNAPSHOT®

by PowerReviews
CARQUEST by BWDIdle Air Control Valve
 
3.9

(based on 20 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

85%

of respondents would recommend this to a friend.

Pros

  • Easy to install (12)
  • Improves engine efficiency (10)
  • Durable (3)
  • Increases power (3)

Cons

No Cons

Best Uses

  • Everyday driving (10)
  • Replacement (7)
  • Restoration (3)
    • Reviewer Profile:
    • Auto enthusiast (7), Casual driver (3)

Most Liked Positive Review

 

Returned high idle back to normal.

My 94 Sierra was idling about 1700 RPM. I was told it was a vacuum leak. After looking around and replacing a couple of hoses I chose to replace the IAC. At first...Read complete review

My 94 Sierra was idling about 1700 RPM. I was told it was a vacuum leak. After looking around and replacing a couple of hoses I chose to replace the IAC. At first it idled higher but after driving for a little bit it is back down to where it should be. I should have bought this part sooner.

VS

Most Liked Negative Review

 

BWD part works great

My 1993 Suburban was having stalling problems and I was able to trouble shoot the IAC valve as the cause. I also changed several other needed sensors with BWD aftermarket parts and the truck...Read complete review

My 1993 Suburban was having stalling problems and I was able to trouble shoot the IAC valve as the cause. I also changed several other needed sensors with BWD aftermarket parts and the truck runs great. I will have to see how well these parts hold up but they all appear to be well made.

Reviewed by 20 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

BWD is as good or better than OEM

By 

from Minneapolis, MN

Verified Buyer

Pros

  • Gv

Cons

    Best Uses

      Comments about CARQUEST by BWD Idle Air Control Valve:

      As good or better than OEM

      • Was this a gift?:
      • No
       
      5.0

      Worked as expected

      By 

      from Charles Town WV

      See all my reviews

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Quality Part

      Cons

        Best Uses

          Comments about CARQUEST by BWD Idle Air Control Valve:

          Quality part and fit exactly as it should for my 1987 Camaro Iroc Z

           
          3.0

          Fixed the problem

          By 

          from Georgia

          Verified Buyer

          Comments about CARQUEST by BWD Idle Air Control Valve:

          Had problems with idle on cold start up. Got worse until it was every start up.

          • Was this a gift?:
          • No
           
          5.0

          Awsome

          By 

          from Vero beach.fl

          Verified Buyer

          Comments about CARQUEST by BWD Idle Air Control Valve:

          Easy installation and quality part

           
          3.0

          Ok

          By 

          from Slatington

          Verified Buyer

          Comments about CARQUEST by BWD Idle Air Control Valve:

          Ok

           
          5.0

          fit like oem

          By 

          from milton,vt

          About Me Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast

          Verified Buyer

          Pros

          • Durable
          • Easy To Install
          • Improves Engine Efficiency

          Cons

            Best Uses

            • Everyday Driving
            • Replacement
            • Restoration

            Comments about CARQUEST by BWD Idle Air Control Valve:

            fit like oem

             
            5.0

            Good product

            By 

            from Florida

            About Me Auto Enthusiast, Casual Driver

            See all my reviews

            Ask me a question

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Durable
            • Easy To Install
            • Improves Engine Efficiency
            • Lightweight

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about CARQUEST by BWD Idle Air Control Valve:

              Fixed my high idle problem .

              (0 of 1 customers found this review helpful)

               
              1.0

              Piece of JUNK

              By 

              from Atlanta, GA

              Pros

                Cons

                • Soft Metal

                Best Uses

                  Comments about CARQUEST by BWD Idle Air Control Valve:

                  I was tightening this piece up, not too much, and the little bit of pressure i used was enough to snap it. i had to use a nipple extractor to get it out.

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Idle control valve

                  By 

                  from Iowa

                  About Me Auto Enthusiast

                  See all my reviews

                  Ask me a question

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

                  • Easy To Install
                  • Fixed Fast Idle
                  • Improves Engine Efficiency

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Replacement

                    Comments about CARQUEST by BWD Idle Air Control Valve:

                    This fixed an extremely fast idle prevalent even after complete warmup. Much better on transmission now.

                    (0 of 2 customers found this review helpful)

                     
                    3.0

                    working ok so far

                    By 

                    from Florida

                    About Me Mechanic

                    See all my reviews

                    Verified Buyer
                    3 or more reviews submitted

                    Pros

                    • Easy To Install

                    Cons

                      Best Uses

                      • Everyday Driving

                      Comments about CARQUEST by BWD Idle Air Control Valve:

                      seams to be working fine

                      Displaying reviews 1-10

                      Back to top

                      Previous | Next »

                      Do you have questions about this product?

                       

                      Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                      23 Questions | 28 Answers
                      Displaying questions 1-10Previous | Next »
                      • Q:

                        I have a 1993 GMC Yukon 5.7 runs rough when cold or first start up runs fine after it has warmed up. Is this the part I need?
                        Asked on 7/4/2016 by earl from Oxford,GA

                        1 answer

                        • CUSTOMER CARE

                          A:

                          It may be a reason, Earl. A failing idle control valve cause stalling while idling. It can often cause the car to stall. If it's not working properly, then that proper engine speed isn't being maintained while you idle. However, without the presence of your vehicle we would not be able to properly diagnose it, nor provide you with a 100% answer. I'd suggest that you take your vehicle to a certified mechanic for further diagnosis.

                          Answered on 7/5/2016 by Solomon from AAP
                      • Q:

                        Who is BWD
                        Asked on 9/8/2015 by Shadetree

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Hi Shadetree! The BWD Automotive designs, engineers, manufactures, and distributes more than 40,000 engine management products in some of the most advanced-technology categories. BWD denotes Borg Warner Division. It is the subsidiary of Standard Motor Products. Please click the below link to see their official website:
                          http://www.bwdbrand.com/en/

                          Answered on 9/8/2015 by Solomon
                      • Q:

                        I have a 93 k1500. I have replaced almost everything ( map, o2, exc.) My truck idles low, somethime it runs ok. Then it will bog down, stall, or want start...i am having to unplug all vacums from throttle body...runs for a few miles good then starts doing the same and have to replug them...its like something us up with the vacum at times...i even put a new computer in! Could this part have something to do with it?
                        Asked on 8/14/2014 by marty from kingsport,tn

                        1 answer

                        • CUSTOMER CARE

                          A:

                          It is possible the the idle air control [IAC] valve might be a cause, but I could not tell you for certain. It would be best to take your vehicle to a repair facility and have them properly diagnose it before throwing parts at it.

                          Answered on 8/15/2014 by K from AAP
                      • Q:

                        my 94 GMC Sonoma idles rough. Like a tank. But when driving it seems fine until I stop and idle at a stoplight or stop sign. Could this be the cause?
                        Asked on 11/24/2013 by kat from Flowery Branch, GA

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Hi Kat, 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 11/24/2013 by Steve from AAP
                      • Q:

                        my 87 jimmy 2.8l wont start and when it does it seems to run very rich to the point it die out
                        Asked on 4/4/2013 by newbie

                        1 answer

                        • CUSTOMER CARE

                          A:

                          With reference to your inquiry on the BWD Idle Air Control Valve - part# 21738, the idle air control valve may be the possible cause of the problem on your GMC Jimmy. However, I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not (solve/be) the problem. You may call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                          Answered on 4/4/2013 by Vincent from AAP
                      • Q:

                        location
                        Asked on 6/15/2012 by Anonymous

                        1 answer

                        • CUSTOMER CARE

                          A:

                          If you could please provide the year, make, model and engine size of the vehicle and we would be better able to assist you.

                          Answered on 6/18/2012 by Steve from AAP
                      • Q:

                        does this valve affect the fuel injectors.?\
                        Asked on 4/14/2012 by Anonymous

                        1 answer

                        • CUSTOMER CARE

                          A:

                          The idle air control motor or valve is a device in charge of maintaining an acceptable engine idlespeed by letting a controlled amount air passed the throttle plates. This acceptable idle speed is determined by what the ECM considers to be the “DESIRED IDLE”, which is an actual PID on the scan tool. The ECM is constantly comparing the actual idle engine RPM to its internal pre-programmed desired idle speed. The inability of the ECM not to be able to match these two values creates a problem for proper idle operation. Not all scanners provide the desired idle PID, and there are variants of idle air control valves. In essence, they all accomplish the same thing. The IAC motors/valve is directly controlled by the ECM, regardless of the type.

                          Answered on 4/16/2012 by Vincent from AAP
                      • Q:

                        where is this part located on a 87 gmc 1500 with a 305 v8 engine
                        Asked on 4/1/2012 by Anonymous

                        1 answer

                        • CUSTOMER CARE

                          A:

                          The Idle air control valve should be located on the passenger side of throttle body.

                          Answered on 4/2/2012 by Steve from AAP
                      • Q:

                        i have a 91 s10 its backfiring thro throttle body, using alot of fuel, and has no power. it has a new timming chain and its in time. what would make it do that?
                        Asked on 7/8/2011 by steven from hollow rock, tn

                        1 answer

                        • CUSTOMER CARE

                          A:

                          It seems your EGR valve is sticking or the passages are plugged. So check the EGR system to resolve.

                          Answered on 7/10/2011 by Vincent from AAP
                      • Q:

                        I have a 1989 Chevy s10,4.3L. It will start run a few seconds and die,if you keep giving it gas it will run for a short time,but not even long enough to get out of the driveway. Could this be the problem?
                        Asked on 6/9/2011 by grammy from Cave City,Ky.

                        1 answer

                        • CUSTOMER CARE

                          A:

                          This could possibly be the problem. However, with out the presence of your vehicle we would not be able to properly diagnose it nor provide you with a 100% answer.

                          Answered on 6/9/2011 by DIY Daniel from AAP
                      Displaying questions 1-10Previous | Next »

                      Do you have a question about this product? 

                      Check out the specials in our monthly flyer.
                       
                       
                      Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.