Intermittent pinging?

HPCMOMMA

MEMBER
2003 FORD F-150
4.6L
V8
2WD
AUTOMATIC
200,000 MILES

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.

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,959 POSTS

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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Wednesday, January 13th, 2021 AT 5:50 PM

HPCMOMMA

MEMBER
2 POSTS

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.

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Sunday, February 7th, 2021 AT 6:40 AM

KEN L