Dual Knock Sensors with Wiring Harness Kit | Knock Sensor 5.3 for Chevy Suburban Silverado Avalanche Tahoe, GMC Sierra Yukon, Cadillac Hummer & More GM Vehicles | Replace# 12601822 12589867 917-033

This product went on a 05 Chevy Tahoe. however, the ecm is giving out a code of low power to these sensors. So back to the hunt.

the overall look of the sensors and cable looked great.. packaging was okay, for them being a fairly fragile sensor, I would have expected more foam or bubble wrap. I ohm'd out the cable as I usually do when I buy any cabling of any sort and it was good. I performed a voltage test on the knock sensors and they looked okay as well.I then went to install them.. manufacturer states that the Torque spec for these should be 15 ft/lbs which seems like a lot to me. I like to torque things in increments so I set my torque wrench for half the overall value. which was roughly 7 ft/lbs. I had no issues with that. I then set it to 12 because I read in some forums that 12 ft/lbs would be sufficient. well between 7 and 12 ft/lbs the top of the sensor started spinning. its a 2 piece outer case for the sensor that is supposed to be crimped together. the crimp failed to the point where I had a difficult time trying to remove the thing from my engine block.I tried the second one, with the intention of reusing one of the old ones, but the other new one failed the exact same way at 10 ft/lbs. both were removed and sent back. I received a refund and I ended up buying OEM from the stealership.

I have not installed the gauge yet, but it looks like a quality product

Great Product, Works Perfect for our needs and easy to use.

I'd like to preface this with the fact the harness worked (and is still working) like a charm. The knock sensors however are very cheap and poorly made.**On the plus side, the seller did refund me for the cost as I ended up having to take this to a mechanic to drill out one of the broken sensors.The installation seemed overwhelming, but there are some great YouTube videos out there that will walk you through the entire process. The torque on these sensors is really low, only about 15 ft lbs.The issue for me is that even after replacing them, the car threw errors for both. When I tried removing them, the nut portion spun freely from the housing, so only the top was spinning and they weren't backing our. I used a chisel to lightly tap around the top so the nut would catch the rest of the housing. This worked well for the front sensor. When I did this to the rear sensor, the top half of the sensor broke off leaving only the bolt in the engine block. I tried backing it out with some extractors, but that broke. Three days and $750 later, my mechanic removed it and replaced them with OEM sensors (at $122/ea.)TL;DR, buy ACDelco sensors from an auto parts seller and save yourself a few hundred dollars and several hours of four letter words. What a royal pain.

Haven't installed but it is the correct part

Did the knock sensor bypass with this set installing them in the right head. Cable was just long enough to connect but was unable to clip plug to holder. No problem though and they work just fine.

Came late! No instructions