Lifter noise in 5.4 ( my 1st post here, be gentle)
Howdy everybody! This is my 1st post so forgive me if this is in the wrong spot...
I have a 97 Expedition w/ a 5.4, 2WD, 125K and the lifters are rattling in the morning when I start it. It goes away in 15-20 seconds. The oil pressure reads good. I am using Exxon 5W30. The truck runs great but this is driving me nuts!!
Any suggestions. I ran some Marvel Mystery Oil through and it helped, but the noise is still there.