Ignition Knock (Detonation) Sensor
Hover over the image to zoom in
Ignition Knock (Detonation) Sensor Ignition Knock (Detonation) Sensor
Share this:

BWD Ignition Knock (Detonation) Sensor

Part No. S8696 Warranty  

See if this part fits a specific vehicle.

Check Vehicle Fit

BWD knock sensors are designed to respond to knock frequencies up to 1000 Hz accommodating shifts in engine knock frequency, making it a more flexible sensor that responds to help correct engine knock over a broad range of vehicle conditions.
Back To Top
Terminal Gender:Male

REVIEW SNAPSHOT®

by PowerReviews
BWDIgnition Knock (Detonation) Sensor
 
3.9

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

82%

of respondents would recommend this to a friend.

Pros

  • Easy to use (8)
  • Durable (5)
  • Lightweight (4)

Cons

    Best Uses

    • Trucks (7)
      • Reviewer Profile:
      • Truck enthusiast (6), Mechanic (5), Auto enthusiast (3)
      • Was this a gift?:
      • No (9)

    Most Liked Positive Review

     

    Works great

    Replaced both mine on my 02 avalanche 5.3L. Did both sensors,gasket,and wiring harness at the same time. Took me about 3 hours start to finish, not to difficult if you have...Read complete review

    Replaced both mine on my 02 avalanche 5.3L. Did both sensors,gasket,and wiring harness at the same time. Took me about 3 hours start to finish, not to difficult if you have a decent grasp on how to fix vehicles. These sensors work great, I see reviews saying they are junk but I can almost promise there is something they either did wrong oar something they broke. That have good weight to them and are good quality. Do not drop these on the a hard surface, if you do they will go bad. Make sure you clean the surface of the engine block and the holes the knock sensors fit into to ensure proper fit for the manifold gasket.

    VS

    Most Liked Negative Review

     

    Use OEM AC/Delco from Advance instead

    Got check engine like and bad knock sensor code on 2004 5.3 Chevy 1500 Silverodo @ 125k miles. Pulled intake manifold, not an easy job and found the rear knock sensor very corroded and...Read complete review

    Got check engine like and bad knock sensor code on 2004 5.3 Chevy 1500 Silverodo @ 125k miles. Pulled intake manifold, not an easy job and found the rear knock sensor very corroded and felt sure this was cause. Replaced both sensors and wiring harness and upgrade gaskets as not wanting to go back in to replace. Then within 50 miles got same code. Checked with a repair shop and was told that anything but the GM part can give you fits. Advance let me return the BWD sensors and pay diff for the AC/Delco sensors. Replaced about 200 miles ago and no check engine light. Wish I had use AC/Delco the first time and not had to redo the job. Also suggest using rtv around the rubber covers on the harness. Youtube has several videos on replacing sensors and was very helpful. Was quoted $600-700 to do this job at repair shop.

    Reviewed by 11 customers

    Sort by

    Displaying reviews 1-10

    Back to top

    Previous | Next »

     
    5.0

    Clean dry area where it goes

    By Auto Repair Tom

    from Johnsonburg, PA 15845

    About Me Casual Driver, Mechanic, Truck Enthusiast

    Ask me a question

    Level 5

    Pros

    • Durable
    • Easy To Use
    • High-Performance
    • Lightweight
    • Versatile

    Cons

      Best Uses

      • Hd Trucks
      • Trucks

      Comments about BWD Ignition Knock (Detonation) Sensor:

      Hello make sure who is doing the work clean and dry area where they goes. A water area will short it out and give low volts low watts code. Make sure get intake gasket kit and Dorman - OE Solutions Knock (Detonation) Sensor Harness Part No. 917-033 due to water maybe in the old harness. Will casuing code again after changing Knock senors I still had code til I change harness. Code came up after driving 50 to 100 miles. Now change Dorman - OE Solutions Knock (Detonation) Sensor Harness Part No. 917-033 code is gone never came back.

      • Was this a gift?:
      • No

      Comment on this review(earn points)

       
      5.0

      Works great

      By vikingfirebeard

      from jacksonville, fl

      About Me Auto Enthusiast, Mechanic, Truck Enthusiast

      Ask me a question

      Level 6

      Pros

      • Durable
      • Easy To Use
      • Lightweight

      Cons

        Best Uses

        • Large Cars
        • Small Cars
        • Trucks

        Comments about BWD Ignition Knock (Detonation) Sensor:

        Replaced both mine on my 02 avalanche 5.3L. Did both sensors,gasket,and wiring harness at the same time. Took me about 3 hours start to finish, not to difficult if you have a decent grasp on how to fix vehicles. These sensors work great, I see reviews saying they are junk but I can almost promise there is something they either did wrong oar something they broke. That have good weight to them and are good quality. Do not drop these on the a hard surface, if you do they will go bad. Make sure you clean the surface of the engine block and the holes the knock sensors fit into to ensure proper fit for the manifold gasket.

        • Was this a gift?:
        • No

        Comment on this review(earn points)

         
        1.0

        Use if you want to do this job twice...

        By BustedKnuckles

        from Houston, Texas

        About Me Auto Enthusiast, Do it Yourselfer, MECHANICALLY INCLINED

        Pros

          Cons

          • Incompatible

          Best Uses

            Comments about BWD Ignition Knock (Detonation) Sensor:

            As PowerReviews said: Chevys may not like these knock sensors.
            __________________________________________________

            2003 Chevy Tahoe

            Check engine light came on (knock sensor, bank 1). Replaced both sensors and wiring harness. 50 miles later check engine light came on again (knock sensor, bank 2). Advance Auto cleared the code twice but it kept coming back on within 50 miles. Luckily I bought the expensive Fel-Pro gaskets. They're built to last and can be re-used. Swapped for AC Delco. 250+ miles so far and no issues.

            • Was this a gift?:
            • No

            Comment on this review(earn points)

             
            1.0

            Use OEM AC/Delco from Advance instead

            By Leebobagogo

            from Nantahala Gorge

            About Me Auto Enthusiast

            Ask me a question

            Level 2

            Pros

              Cons

              • Incompatible

              Best Uses

                Comments about BWD Ignition Knock (Detonation) Sensor:

                Got check engine like and bad knock sensor code on 2004 5.3 Chevy 1500 Silverodo @ 125k miles. Pulled intake manifold, not an easy job and found the rear knock sensor very corroded and felt sure this was cause. Replaced both sensors and wiring harness and upgrade gaskets as not wanting to go back in to replace. Then within 50 miles got same code. Checked with a repair shop and was told that anything but the GM part can give you fits. Advance let me return the BWD sensors and pay diff for the AC/Delco sensors. Replaced about 200 miles ago and no check engine light. Wish I had use AC/Delco the first time and not had to redo the job. Also suggest using rtv around the rubber covers on the harness. Youtube has several videos on replacing sensors and was very helpful. Was quoted $600-700 to do this job at repair shop.

                • Was this a gift?:
                • No

                Comment on this review(earn points)

                (10 of 19 customers found this review helpful)

                 
                4.0

                Works

                By P100d

                from Nashville Tn

                About Me Mechanic

                Verified Buyer
                Level 2

                Pros

                • Durable
                • Easy To Use

                Cons

                  Best Uses

                  • Trucks

                  Comments about BWD Ignition Knock (Detonation) Sensor:

                  Good Idea to get the wiring harness too Your old one will break.

                  • Was this a gift?:
                  • No

                  Comment on this review(earn points)

                  (9 of 18 customers found this review helpful)

                   
                  4.0

                  Saved lots of money installing it myself

                  By Jay

                  from South Jersey

                  About Me Mechanic, Truck Enthusiast

                  Ask me a question

                  Level 2

                  Pros

                    Cons

                      Best Uses

                        Comments about BWD Ignition Knock (Detonation) Sensor:

                        Check engine light came on. Two codes indicated the knock sensors were bad. A few codes indicated there was a problem with catalytic converter efficiency. I knew this was a hard job. I bought the better set of intake manifold gaskets for $79 at Advance. Job was about 3 hours. There was a lot of crud in the knock sensor location. I cleaned the grime out and installed the new sensors. I used the original wiring harness although many people recommend changing them. I used a voltmeter to verify the original cable had continuity. I took the alternator off to make room. After reassembling everything my Silverado ran great. Better economy and acceleration. So these knock sensors were the problem. I cleared the check engine light with a scanner and it hasn't come back on after 200 miles so this fixed my problem.

                        • Was this a gift?:
                        • No

                        Comment on this review(earn points)

                        (9 of 19 customers found this review helpful)

                         
                        5.0

                        installed! Great,no more check eng code

                        By big daddy

                        from t/c mich

                        About Me Mechanic

                        Verified Buyer
                        Level 2

                        Pros

                        • Durable
                        • Easy To Use
                        • Lightweight

                        Cons

                          Best Uses

                          • LS eng's 485360L V8
                          • Trucks

                          Comments about BWD Ignition Knock (Detonation) Sensor:

                          GREAT PART for the money save over GM price
                          please note : repacing the knock sensor is not a easy or fast task plane on about 4-5 hours if you have the tools as the upper intake & fuel inj must be removed to get at the sensor!

                          Comment on this review(earn points)

                          (8 of 17 customers found this review helpful)

                           
                          5.0

                          Chevy 2000 Knock Sensors

                          By Zeke

                          from Brownsville, Texas

                          About Me Truck Enthusiast

                          Verified Buyer
                          Helpful Reviewer

                          Pros

                          • Durable
                          • Easy To Use

                          Cons

                          • None

                          Best Uses

                          • Trucks

                          Comments about BWD Ignition Knock (Detonation) Sensor:

                          Easy to install and that service engine light didnt come back 'on'. :-)

                          • Was this a gift?:
                          • No

                          Comment on this review(earn points)

                          (9 of 18 customers found this review helpful)

                           
                          5.0

                          Fit was great. Fixed the problem.

                          By Saving Money

                          from Maine

                          About Me Truck Enthusiast

                          Verified Buyer
                          Level 2

                          Pros

                          • Easy To Use

                          Cons

                            Best Uses

                            • Trucks

                            Comments about BWD Ignition Knock (Detonation) Sensor:

                            Once you get at the part. It was easy to install. It fixed the error code that my engine had shown. Seemed of good quality.

                            • Was this a gift?:
                            • No

                            Comment on this review(earn points)

                            (9 of 19 customers found this review helpful)

                             
                            5.0

                            Worked perfectly

                            By silverman

                            from White,Ga

                            About Me Truck Enthusiast

                            Verified Buyer
                            Helpful Reviewer

                            Pros

                            • Easy To Use
                            • Lightweight

                            Cons

                              Best Uses

                                Comments about BWD Ignition Knock (Detonation) Sensor:

                                Has worked as expected.

                                • Was this a gift?:
                                • No

                                Comment on this review(earn points)

                                Displaying reviews 1-10

                                Back to top

                                Previous | Next »

                                Do you have questions about this product?(earn points for answers!)

                                 

                                Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                                25 Questions | 29 Answers
                                Displaying questions 1-10Previous | Next »
                                • Q:

                                  who exactly is responding to these questions? Where are you getting your references from exactly? Just curious to understand the information and ensure its quality. thanks
                                  Asked on 6/8/2013 by jen

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    We are in-house experts with experience in automobile industry. We get most of the information from owner manuals, forums/threads, manufacturer websites etc.,. Sometimes we also get some technical information from our own customers who had used the products. If at all there is a major issue we will always request the customer to check with a certified mechanic for a proper diagnosis. For any further assistance please feel free to 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 6/10/2013 by John the Car-Doc from AAP
                                • Q:

                                  how long can you run truck while knocki sencor is bad?
                                  Asked on 5/7/2013 by jess

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    With reference to your inquiry on this BWD Ignition Knock (Detonation) Sensor (Part No. S8696), the Knock Sensor retards the engine timing when there is a knock or ping detected. This will make the car a little sluggish. It is rare that the knock sensor goes bad. For any further assistance please feel free to 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 5/7/2013 by Max from AAP
                                • Q:

                                  Are these knock sensors sold as a pair, or seperately?
                                  Asked on 3/13/2013 by Phil

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    The BWD Sensor - Knock (Detonation) (Part No. S8696) is sold individually. For any further assistance, please feel free to 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 3/13/2013 by Steve from AAP
                                • Q:

                                  Where are the knock sensors located on a 2006 Chevrolet Silverado 1500 4.8l engine?
                                  Asked on 1/21/2013 by MaddMike from Ontario, CA

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    With reference to your query on BWD Sensor - Knock (Detonation) - Part No. S8696, The knock sensors are under the intake manifold of your 2006 Chevrolet Silverado 1500 4.8 L. The intake has to come off to get to them. For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

                                    Answered on 1/21/2013 by Max from AAP
                                • Q:

                                  Where is the knock sensor located on an 2004 Chev Silverado 4X4?
                                  Asked on 6/16/2012 by Anonymous

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    To help you in a better manner, if you could please include the year, make, model, sub-model and engine specification of the vehicle and we would be better able to assist you.

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

                                  loatiion of knock sensor on 2005 chevy express 6.0 liter is it under intake manifold? thanks
                                  Asked on 6/5/2012 by Anonymous from ct.

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    The 2005 Chevy Express 6.0l has two knock sensors. They should be located in the cover of the engine valley under the intake manifold. You need to remove that to get at them.

                                    Answered on 6/6/2012 by Vincent from AAP
                                • Q:

                                  i have a 99 gmc 1500 lse serria 5.3 motor wear is the knock senor located
                                  Asked on 5/27/2012 by mike z from newportrichey fl

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    The knock sensor on your Gmc sierra 1500 5.3 sle should be located on the intake manifold.

                                    Answered on 5/28/2012 by Vincent from AAP
                                • Q:

                                  where do i put this at in my truck because i cant find where it goes..
                                  Asked on 5/20/2012 by katie from smithfield nc

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    To help you in a better manner, if you could please include the year, make, model and engine specification of the vehicle and we would be better able to assist you.

                                    Answered on 5/20/2012 by Aaron from AAP
                                • Q:

                                  hi where is the knock sensor in gmc yukon 2002
                                  Asked on 3/26/2012 by jlop63 from nc

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    The knock sensor is located under the intake manifold mounted on the cam cover in your 2002 GMC Yukon.

                                    Answered on 3/26/2012 by Dennis from AAP
                                • Q:

                                  hey where is the knock sensor on a 2005 chevy z71?
                                  Asked on 12/5/2011 by Anonymous

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM.

                                    Answered on 12/6/2011 by DIY Daniel from AAP
                                Displaying questions 1-10Previous | Next »

                                Do you have a question about this product? 

                                Create or view your online garage

                                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.