I have 2001 chevy pickup 2wd 6 cylinder 4.3engine I have A knocking noise on the right side not low on oil this noise gose away after it worm up sounds like lifters the truck has 63000 miles on it . it is not always there when i start it in the morning. then after the truck sits for thee or four hr.its there and can get a little loud
Optional Information:
2001 Chevrolet sylverado 4.3
Already Tried:
I took it to a shop thay said it was a bad oring on the oil pump thay said i was getting air mixing my oil that was not the problem also had a coolent leak at the manifold thay replased the gasket it was a small leak sound like the noise is coming from the lifters