I have a 1999 P38 4.0 with 150 K miles.I have owned it for the last 4k miles.
I had a loud ticking sound from the top of the engine and my low oil light came on about
3k miles ago.My mechanic felt that the oil was not getting to the top of the engine and that was the cause of the ticking sound.
he flushed the engine and replaced the oil.
The sound went away for the next 3K miles.
I had an oil change last week and after driving about 10 miles the same thing happenned.
The oil light came on and the ticking sound came back.
my mechanic flushes the engine again and this time replaced with synthetic oil.
He feels that either the oil pump screen or pickup tube gets clogged.
Why would this happen with new oil?[too thick?]
will the synyhetic oil work or do i need anew oil pump.
if so how big a job is a new oil pump?