1998 Chevrolet S10 Q&A
1998 Chevrolet S10 Question: knocking sound coming from oil pan or this general area.
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 - magurch
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. - pushrod