I have a 2000 Dodge Dakota 4.7L, overheated because of a hole in the radiator, blew a head gasket. I replaced both head gaskets, timing chain tensioners, and all 16 lifters, TPS (throttle positioning sensor), MPS, did oil change, ran it for about 500 miles done a motor flush then new oil filter and lucas oil. Problem is the motor runs perfect with no codes, but there is a knocking that I can not figure out. The knocking increases with acceleration. I checked the exhaust gaskets (all good), noise seems to be coming from the center of the motor. Any suggestions?

 

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I drove it today for awhile the idle is alittle rough other then that it runs great. it doesn't burn oil, it just knocking at idle and at acceleration but not at deceleration

 

probably hurt a bearing when it overheated what is the oil pressure? What weight oil are you running?

 

the oil pressure is around 40 and higher I use 5w30

 

a knock is usually a bad bearing inside the engine, or possibly water pump

 

I guess it depends how bad it overheated. Does it do it in neutral?

 

yea I think its time for a new motor but it runs great with no issues just knocks

 

its a tap at idle and more of a knock when you acceleration cant really find where is coming from seems like the intake and both heads