should he or not
This question can have many answers and the right one might be dependant upon how much damage the engine actually has.
If you can norrrow down the noise and isolate it to a specific area, you might find that the noise is a result of something small like a broken or cracked flexplate (if automatic). The busted flexplate will knock like a rod knock, and sound like the engine is destined for the scrap yard, when in reality it is a simple replacement that is required.
Now, I am not suggesting that this is the problem, but the severity of the problem might be verified in order to determine whether or not the engine is a salvageable rebuild candidate.
If isolation cant be performed, then you may just have to start opening the engine up to find the problem. Could be something as simple as a loose rocker, or bent pushrod.
None of these are justification to scrap or even replace the engine.


