Dorman 917-033 Ignition Knock (Detonation) Sensor Connector for Select Models, Black

The wiring harness will need to be replaced if you are replacing the knock sensor. Why do you have to perform the tasks in the first place? This is the exact reason why you do it. Old ones shrink with heat, making the knock sensor cavity more vulnerable to water entry. The knock sensor is then corroded and damaged as a result. As they age, the connectors on the old one are also more likely to break when removed. I replaced my old boots with this harness and it fit perfectly, unlike the old one that I had. The package arrived well packaged in a box, with the harness inside a bag. I did not encounter any problems snapping in the connectors. I started my 5 when I started my job. During my test drive of the 3 silverado, the harness performed as intended without causing any issues. You shouldn't have any issues fitting this one since it is an exact replica of the original. Rather than create just a dam in the front of the boot, I decided to seal the entire boot completely with RTV despite the service bulletin only urging such an action. In case you're reworking the knock sensor in a General Motors vehicle, here are a few things to note *If you're planning on doing this, make sure you have the time. It will take upwards of 6 hours to complete the task Since the manifold will be off for 8 hours, now is an ideal time to replace the optional parts since the manifold will be off. In addition to cleaning the IAC, MAF, and throttle body, you may want to perform additional maintenance. The following is a list of parts Usually only the rear of the knock sensors gets damaged, but since this is a large job, you may as well swap them both) . 1 Knock sensor harness (The old one will no longer function. Intake manifold gasket (This is a given. Boot won't seal, and connectors will be brittle and likely to break). Do not do this and then have a vacuum leak after reassembling).
1 Throttle body to intake manifold gasket (you will probably unmount the throttle body to make removal and cleaning easier).
1 RTV tube (high temp is preferred) The knock sensor is protected on this side by a dam that prevents moisture from entering it If you want to thoroughly clean the throttle body while the manifold is off, you can do so now.
1 Bottle of Throttle Body Cleaner. The following tools will be required
1 bottle of MAF cleaner (for cleaning the Mass Air Flow Sensor and the Idle Air Control Valve).
Some *Make sure to use a shop vac to remove grease and dirt caked on parts. While removing the manifold, regardless of how careful you are, leaves and debris are likely to fall among the valves and knock sensor cavities. If you're getting rid of debris quickly with a shop vac, this is an easy job. Other parts to replace while the manifold is apart **Valve cover gaskets w/grommets** (This is the right time to replace the valve cover gaskets if you notice any small oil leaks. ) **Heater There are many GMC trucks that have been known to break near their firewall with these things. As soon as you have easy access to them, now is the time to replace them. (Note If you haven't done so yet, now is the time. Rather than include any specific part numbers, I omitted them since they will vary based on the vehicle.

Atreus Osborne

| Nov 07, 2020

The update is To update, I thought it would be good. As it turns out, you need to torque the knock sensors to 15ft lbs. I did not see this mentioned in the YouTube videos I watched, so it must not have been Having said that, I gave it a 4 star review since the quality isn't in the same league as In my opinion, I would not buy it again, but if you are willing to take a chance and tear it apart if it fails, then it might be worth As the internal wiring will break if you don't torque your sensors, make sure you torque them. Be sure to check the continuity of the wiring and the sensors before you install the intake manifold on your GM vehicle (about 100K Ohms is what I discovered). Saving at least four hours over redoing could save you a lot of time. It took me a long time to turn my check engine light off, but it has. Just as though I had just returned from a war I had started myself A waste of more than four hours of labor. It took me a few days to install the harness, because I am a meticulous mechanic. The harness threw MIL errors on both banks on the first day of installation. In my case, I bought OEM for my knock sensors but went cheap on my harness after going through several Take a look at the one stars and you will notice that there is There is no point in taking that Please pay attention to my warning, since I plan on opening my car up for a repeat when the OEM harness.

Pablo READ

| Apr 22, 2021

When towing up a steep hill one day, the check engine light came on. Scanning the engine control module, I found that the knock sensor and misfire codes were present. The Chevy V8 has this problem all the time. A bunch of stuff in the way has to be moved in order for the fix to work. As a result of the large number of things that have to be moved and the time it takes to move them, I personally change both the sensors and the wire harness while I am The harness I am using is far superior to the factory wiring There was a tighter seal on the plugs and a better feel to the wire as well.

Yosef Andrews

| Mar 05, 2021

I should have learned that lesson earlier. No matter how grimy your Chevy truck engine gets after 12 years of use, don't wash it. As a result, some water pooled in the cavities of the knock sensors and one corroded. There will be a moment when you realize it. The knock sensors on two OEMs that I ordered have been replaced after much pain. You need to be careful when you remove the intake manifold because the grime will fall into the cylinder. YouTube has some good videos that you can watch to help with the installation.

Anaya Adkins

| Apr 24, 2021

I was hesitant to buy a new harness when I replaced my knock sensors I thought I could reuse the old one, but after a friend recommended it, I did so, and my car is much better now. In my hands, the original harness broke nearly as soon as I tried to remove it since it was hard and brittle. As a result, replace the harness at the same time as you replace the knock sensors.

Donald Cox

| Sep 04, 2020

The knock sensor on my 03 silverado 1500 was throwing a code. We pulled the old ones and found that one had been chowdered up all the way. As part of a TSB, I put some RTV seal around the new sensors and used them to replace the old harness. After cleaning the area, removing the old sensors, and installing the new ones, I followed this process to give a "dam" around them. There is apparently a common issue where water can get into the area and rot out these things. While I was in there, I got a few more seals and other things to deal with, and now no codes are needed.

Blaine Nicholson

| Jan 06, 2021

The sensors were 17 years old and in poor shape. This was the case as well. It felt hard and rubbery as if it was plastic on top They don't keep a damn thing from getting in. This was also replaced by us and I am so glad we did. In order to do this correctly, you need to clean off the side channels and gutters that are meant to carry water away, as well as to make a dam as per OEM specifications, and glue the lids onto the dams using that same gasket material. After cleaning and replacing these lids, you should NEVER have any problem with water incursion or oxidation for the life of the vehicle if you gasket/glue them on.

Azariah Singleton

| Sep 14, 2020