“Pinging” type noise when accelerating

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Apr 20, 2020 | 11:36 AM

#16

shayedtree

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Joined: Apr 2015

Posts: 8

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Quote:

Originally Posted by brrossi

I would suggest you check the EGR valve. The 1988 with 302 I owned did this, and it turned out to be the EGR. Also check the codes as this problem did'nt trip the light. But did set some codes. Once fixed the problem quit. I recall reading that EGR problems are common on 1987 To 1990 302's.

For the last 2 mos. I have read on this topic until my eyes would bleed.
I had the issue with a clacking/rattling/ticking/rattle sound in the engine compartment on a 2000 E150 5.4L Triton (205,000 mi.) Basically, what was actually spark knock on acceleration. It also likely lead to our poor LTFT and STFT readings.
I could rev engine in park/neutral as high as I wanted and would NEVER get the noise. That fact, and, that no codes were being thrown made this next to impossible to find the origin/reason. We tried all kinds of repairs/fuel treatments/octane increase/MAF sensor cleaning, heat shields, cats, etc..., based on whatever I found from endless forum searches. Nothing worked. But, now finally it is fixed. The DPFE ports were caked/occluded with carbon and when we just touched the hoses, they also just crumbled. The problem existed for almost 3 yrs. It's now FIXED.

Also, Ford had bad DPFE's early on and this was a big deal for performance issues. I did not actually need to replace it however as it just needed cleaning, and I suspect it is/was not the original anyway.