DelphiAS10017 Ignition Knock (Detonation) Sensor

2005 Silverado 4.8 . Notorious knock sensor issue.. I used on the heads and no more issue. Will relocate again later. I bought oem from local parts store and it didn’t work. After this I have no issues. I may do the bottom motor mount relocation later. This name brand made other parts for gm so they can speak the same data language. Don’t worry about if it communicates properly to the computer because they do. Some sensors don’t.

Did this job once before with a dorm** product had to end up doing the job again.This product passed out of the box wen over 50% of the aftermarket products failed out of the box

I bought these because ACDelco sometimes sources products from Delphi and these were half the price of the ACDelco sensors. My 2002 Suburban had been getting these codes because of the known rust issues with the 2000-2006 design.Anyhow I bought two of these and a new ACDelco wire harness. I did the work of replacing them, codes kept appearing. I thought maybe I had installed them wrong (torque) because the resistance was perfect at 100.3 on the ohm meter and I got a voltage response when tapping. So I did the job again, made sure all rust was scrubbed out, a little dielectric grease, perfect tongue, ground continuity as expected, but the whole thing back together (not a quick job) and the codes came back!I tinkered with resistance on the wires, figured it had to be the wires or ECM, couldn’t possibly be these sensors. I battled this for 6 months (too late to return these) until I asked a neighbor with the same engine to let me check his wire resistance for the knock sensors… turned out mine had been perfect before I started trying to mess with them. Finally bought a pair of ACDelcos from a local dealer and did the job a third time. After pulling these out I compared them with the ACDelcos. The ACDelvos measured 99.8 resistance (perfect, nearly identical to these, but the voltage check with a tap was insanely different. The ACDelcos voltage was way more responsive to taps.Once I put it all back together with the ACDelcos, the codes vanished and haven’t come back in over 300 miles. I’m kicking myself that I trusted these Delphi units and so much money, labor, and frustration are down the drain.

These are good quality Knock sensors that work!!... I had to do this Job 3 times!! first i bought Acdelcos from eBay then from the GM Dealer both threw a check engine light in less the 50 miles , well after doing some research online come to find out there was a Massive bad batch of Acdelco Knock sensors. So i bought these knowing Delphi makes sensors for GM and so far thy been working good almost 20,000 miles on them and no check engine light.

The media could not be loaded. I got a 2002 Chevy Avalanche with a 5.3L and 200k miles, previous owner said the knick sensors were replaced with AC delco in the factory position and the CEL never went away. I ordered these and instead of taking the whole intake manifold off I relocated them to outside the block. It took less than 20 minutes and it has been working PERFECTLY!! Along with these to sensors I also ordered a harness screwed them in to the factory threaded holes on the block (they're the same size) disconnected the factory harness and ran the new harness to the sensors. Cleared the code and reved the engine to about 4k RPM for 15-20 seconds so the ECU can learn the new knock sensors and I haven't had a problem since! Its been a month and still no CEL! Just make sure you OHM out the sensors with a meter before you install them, you should get about 99-100 OHMS... TRUST ME RELOCATE YOUR KNOCK SENSORS!!

These work better than any I have found although one went out in a year.

I changed out my knock sensors because of preventive maintenance since I already had the intake manifold off. I went with ACDelco OEM ones. Got 2 off Amazon and after putting everything back together, my car started throwing knock sensors codes. Stupid of me not bench testing them. I thought I got fake ones and of course it was already outside of the return period. I ordered 2 more full price ACDelco ones off AutoZone (all 4 so far all say Made in Mexico and packaging look exactly the same) and after bench testing them, they were dead on arrival! And that basically sums up what's wrong with modern American cars. They don't care after they sell you the car and parts around the great engine is junk.Finally, ordered these Delphi ones and box says made in Taiwan. I held my breath and bench tested both of them. They passed and so far no codes at all after installation. Taiwan for the win!Lastly, when I was taking out the basically new ACDelco ones I just installed, one of them spun. I tried to chisel it out like some YouTube video, but it snapped off at the thread. So I spent the next hour and half drilling it out using an extractor. Sorry GM Mexico, something is really really wrong with the metal and the production.

Easy to install, seemingly resolved the issue, I can fix a pretty expensive mechanic issue myself with nothing but you tube and an auto parts provider.