lifters tapping on 2000 Ford F-150

I just replaced the lifters and did a complete tune-up on my f-150, it is still tapping, and now the oil pressure is dropping when i stop, what could this be? any ideas?

by in Texarkana, AR on June 13, 2010
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
0 answers