N54 Rod knock?

Naeykwon5603 · 09-01-2022, 03:00 AM

So I’ve been experiencing some weird knocking sound… it’s higher pitch than most rod knock and it’s really fast paced. And since this knocking has occurred I’ve gotten codes P0420 and P0430 which led to me thinking it was the injectors but I discontinued the electrical connectors and the knocking consisted…. Is it rod knock?

https://m.youtube.com/shorts/oqluEjnPdAw
https://m.youtube.com/shorts/oqluEjnPdAw

Glene · 09-01-2022, 09:11 AM

Quote:

Originally Posted by Naeykwon5603

So I’ve been experiencing some weird knocking sound… it’s higher pitch than most rod knock and it’s really fast paced. And since this knocking has occurred I’ve gotten codes P0420 and P0430 which led to me thinking it was the injectors but I discontinued the electrical connectors and the knocking consisted…. Is it rod knock?

https://m.youtube.com/shorts/oqluEjnPdAw
https://m.youtube.com/shorts/oqluEjnPdAw

It sounds like my 2011 335i after I had spun bearing. I suggest you remove the serpentine belt to eliminate other mechanical moving parts to see the knocking goes away. Or you can remove the oil filter to examine any fine metallic material (from rod bearing). Stop driving the car until you know where is the knock coming from.

drymite · 09-01-2022, 10:30 AM

Sounds like rod knock

Glene · 09-01-2022, 11:16 AM

[QUOTE=Glene;29285266]It sounds like my 2011 335i after I had spun bearing. I suggest you remove the serpentine belt to eliminate other mechanical moving parts to see the knocking goes away. Or you can remove the oil filter to examine any fine metallic material (from rod bearing). Stop driving the car until you know where is the knock coming from. If it's actually a rod knock and just happened, you may able to save the crankshaft...replacing the bearings and on your way.

09-01-2022, 03:00 AM	#1
Naeykwon5603 N54Keeley 0 Rep 1 Posts Drives: BMW 335i Join Date: Sep 2022 Location: Texas iTrader: (0)	N54 Rod knock? So I’ve been experiencing some weird knocking sound… it’s higher pitch than most rod knock and it’s really fast paced. And since this knocking has occurred I’ve gotten codes P0420 and P0430 which led to me thinking it was the injectors but I discontinued the electrical connectors and the knocking consisted…. Is it rod knock? https://m.youtube.com/shorts/oqluEjnPdAw https://m.youtube.com/shorts/oqluEjnPdAw
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09-01-2022, 10:30 AM	#3
drymite Second Lieutenant 31 Rep 214 Posts Drives: 06 330i/06 323i/09 323i/07 335 Join Date: Oct 2020 Location: toronto iTrader: (0)	Sounds like rod knock
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09-01-2022, 11:16 AM	#4
Glene First Lieutenant 64 Rep 323 Posts Drives: 335is Join Date: Dec 2018 Location: Michigan iTrader: (0)	[QUOTE=Glene;29285266]It sounds like my 2011 335i after I had spun bearing. I suggest you remove the serpentine belt to eliminate other mechanical moving parts to see the knocking goes away. Or you can remove the oil filter to examine any fine metallic material (from rod bearing). Stop driving the car until you know where is the knock coming from. If it's actually a rod knock and just happened, you may able to save the crankshaft...replacing the bearings and on your way.
	Appreciate 0 Quote