I have a 1999 chevy S10 pickup with 119000.miles on her for a while now i would hear ticking noise i thought is might be an exh leak when i spepeed on the gas when driving a mounth ar so ago on a cold morning when i started it was clacking loud and running rough with slight popping comming from exh, after a minute it quited down . i shut off the engine I was down over a qt of oil i added oil went to work i found that the remote oil filter hose was leaking i changed it. but ever since it starts the lifters sound loud they quite down but when i am driving and step on the gas i can hear them what do you think?
Valves hangin up...is the check engine lamp on???..very common in these parts, see at least one a month or so at the dealer..starts out as a misfire after a long hill is pulled, a set of reman heads and the issue is gone.