We haev a 2001 hyundai sonata 2.6, Gls. We change the lifters from the car and now we are having a loud knowing sound. We took it to a machine shop and they said that it is the oil pump we have ordered the pump and will get it by Friday. Is it okay to drive the car also is there something we can use to stop it from making the loud knocking sound.
Monday, February 14th, 2011 AT 10:04 PM