dineshsahu wrote: ↑Mon Apr 08, 2019 7:10 pm
...a leaky valve cover gasket. They told me that when I do it I have to replace the covers too (which I don't understand...)
... anything else I should do when I'm doing this job?
You are right in that the "replace entire valve cover" story doesn't make sense... yet. That's a call that can only be made upon verifying that the spark plug tube seals are leaking. You can do this yourself by removing the coilpacks and seeing if they are wet with oil. They shouldn't be.
You should also verify that the valve cover gaskets are actually leaking. That's as easy as:
1. Smelling burning oil a little while after you start driving
2. Ideally on a cold engine, rub your hand/paper towel on the outside of the engine Vee along the meeting surface of the valve cover and engine head.
As AZHitman alluded to, the instructions are usually pretty straightforward as shown in the FSM, but I can promise you a not-so-easy time. The V8 engine bay is tightly packed.
I would consider taking the opportunity to address and replace these as needed:
- PCV valves
- Spark plugs
- Vacuum hoses