🔥 213-3521 ACDelco GM Original Equipment Ignition Knock (Detonation) Sensor Review

I bought these a year ago and they were in the store. Spent 4 hours 3 days on this repair. First, one of the sensors wouldn't screw in, so I bought a new one at a local store. Yesterday my Tahoe threw away the code on the knock sensor I bought from this company. I know because I put it in bank 2 and that's the code I get. On Saturday I will again do all the repairs to replace the brand new knock sensor from this company. I don't enjoy disassembling half an engine 2 days in a row. I knew I…

I have had knock sensor codes since purchasing this part. This part is not OEM and those of you who feel cheated do like me and claim your money back! Luckily, Revane supported my return, but it took some work. Too bad these fakes are sold under the brand name. These cloned knock sensors are so cheap that a week after removing them I had trouble removing the part. I used a 15 lb/ft torque wrench to install after checking the engine code. Removal was tedious as the part just rotated. Luckily…

The computer indicated I have a bank 2 knock sensor I have ordered these two ACDelco knock sensors. I watched a YouTube video on replacing knock sensors. It was a simple process and now my check engine light is off. I uploaded some photos of my work. The most time consuming part of the process was cleaning the engine block of all dirt to make sure it didn't get into the engine. Then I took the air compressor hose and blew out any debris that got into the combustion chamber. Also, a mistake I…

The lower sensors in the picture I received from the seller after ordering the AC Delco brand. It wasn't what I ordered, by the time I was able to diagnose the problem with the sensors the return date had already passed. The gauges are generic and didn't work on my 04 Escalade. They are marked with the same part numbers as the AC Delco brand, but are not. Even my dealer admitted it. I shut off the air intake three times before we realized they were real sensors. When we tried to remove the…

These sensors are VERY sensitive to shock. Since the people who deliver this product to your door usually throw around boxes, there is a good chance that it will be damaged. Before installation, measure the resistance with a multimeter! I had to do this job twice because I didn't test the new part. I installed 2 new knock sensors in my 2001 Silverado 5.3 after receiving code P0332. I also installed a new wiring harness, cleaned everything, RTV sealed the spark plugs, etc. A few days later my…

Excellent price. Installed on my 2004 Sierra 2500 4X4 6.0 V8 Denali Crew Cab. If you have trouble removing them, go slow. You don't want it to break on fat threads. A person once told me to put oil in a hole and leave it overnight if you think it might crack. Typically, the one closest to the windshield in a V8 is surprisingly the one that rots the most. Apparently there's more water on the other side of my truck's windshield. I've attached photos of the front and rear sensors. The one closer…

Inexpensive if they work for you. Before installing both of these knock sensors, I had a knock sensor code. After installing these two brand new ACDelco knock sensors, I had to split the knock sensor codes. And yes the wiring harness was replaced with a new one, after researching I decided that those knock sensors just sucked. Now back to removing the air intake, which was a breeze the second time around. But those two knock sensors don't spin freely. They were only tightened to 15 foot pounds.

This review is more in response to other reviews I've read about it. This repair makes money for GM dealers. It's very easy compared to how intimidating the job is. I read a review that said it would take a full day. Work 2 hours if you don't take a nap in between. Additionally, the intake gasket is made from reusable silicone and is attached to an all-plastic intake manifold. DO NOT BUY A SEAL. There's a reason a dumb pad costs close to $100, because it's high quality and reusable. Everything…

These knock sensors were perfect for my 2001 5.3L Chevy Silverado. They were sent loose packed in an Amazon box with some airbags but arrived undamaged. This is the issue that was discussed but the parts arrived intact. It should be noted that although the product is an OEM part, it is assembled and manufactured in Mexico. However, when installing, it didn't matter because the sensor was working properly. The same sensors cost twice as much at your local auto parts store. Revain had the best…