Engine area knock
#1
Engine area knock
I have a bottom side knock on my 2000 DII (90k miles). I'm having trouble pin pointing it. It seems to come from the cats but a stethoscope cant seem to place it. I have heard that a bad cat can make a similar noise of an engine knock. When the cats do knock, will they increase with RPMs cause my rattle does.
here is more symtoms.....
Knocks when engine is cold or warm
neutral or drive (seem to be a hair louder when placed in drive or reverse)
100% of the noise is coming from the bottom
I have banged on cats with engine off and heard NO rattle of any kind
I can not hear it very much from the inside with windows up
knocks faster when RPMs go up
here is more symtoms.....
Knocks when engine is cold or warm
neutral or drive (seem to be a hair louder when placed in drive or reverse)
100% of the noise is coming from the bottom
I have banged on cats with engine off and heard NO rattle of any kind
I can not hear it very much from the inside with windows up
knocks faster when RPMs go up
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