Re: Engine knock
Check the bell housing for a crack. I have seen this quite a few times over the years. The other thing is mabey a piston cracked. It will make a knock sound. But the v6 stuff is pretty stout. I have seen this on a lot of straight 6 engines. A couple of years ago i bought an izusu npr with a 350- 4l80 that the seller said had a bad engine. It knocked like crazy. The trans was cracked 3/4 of the way around right near the engine bolts. I welded it up and no knock. The sound was just like a bad rod sound.
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