Intermittent pinging?

2003 FORD F-150
200,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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HPCMOMMA
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Got a oil change with the filter. Also replaced number two 02 sensor.. week later it starts knocking then turns into pinging. Now just flip a coin one day it knocks and other day it just pings and some days nothing. Now I live by the mountains and when I go shopping down from here it's not so bad but soon as I get home it starts in again. I have checked everything. I'm lost for words and haven't a clue what's going on.
Jan 12, 2021 at 4:49 PM
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STRAILER
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it sound like the knock sensor stopped working but we should run the codes first. this guide will help with the knock sensor location in the diagrams below:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Jan 13, 2021 at 5:50 PM
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HPCMOMMA
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Sorry took so long, but thank you and for sure will post what I find out and the codes it is telling me. My first thing is the knock sensor replace. You are not the only one who told me about that. I have went through all options and this is what is next. Thank you and talk to you soon.
Feb 7, 2021 at 6:40 AM
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STRAILER
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Please let us know what you find. We are interested to see what it is.
Feb 8, 2021 at 12:49 PM