knocking sound coming from oil pan or this general area. on 1998 Chevrolet S10

How do i trouble shoot to find out what is making knocking sound.

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2 answers 1 comment
Have a MECHANIC listen to it!! What ever engine it is! 2.2? 4.3? Seasoned tech. can tell you what it is and prob. what you dont want to hear.
It's not a sensor.
Agree with wetry- this is not knock sensor. Don't drive vehicle- qualified mechanic will know what is once started!
knocking noises are rarely good, best possible problem would be a bad knock sensor, next step check to see if your have oil pressure, if no oil pressure then you most likely have a bad rod bearing you would the remove the oil pan and gently tap on bearings to confirm one is loose